- Complete Object List (Cnc) -

And (173) Cep (98) Cyg (250) Leo (192) Peg (194) SGE (1)
Aql (118) Cet (33) Del (40) Lep (14) Per (109) Sgr (68)
Aqr (23) CMa (11) Dra (107) Lib (6) Psc (81) Tau (45)
Ari (44) CMi (12) Equ (14) LMi (39) Pup (12) Tri (61)
Aur (72) Cnc (76) Eri (7) Lyn (89) Sco (9) UMa (283)
Boo (63) Com (176) Gem (107) Lyr (68) Sct (32) UMA (1)
Cam (97) CrB (43) Her (126) Mon (50) Ser (57) UMi (12)
Cap (11) Crv (6) Hya (22) Oph (41) Sex (23) Vir (188)
Cas (174) CVn (134) Lac (54) Ori (91) Sge (24) Vul (56)

Abell 31 (PN)

../images/dss/dss2red_085413.16_+085353.10_25_web.jpg
Image source: DSS II (red) - 25×25'
Name: Abell 31, PK219+31.1, SH2-290
Type: PN
Constellation: Cnc
Coordinates: 08h54m13.16s / +08°53'53.10"
Brightness / Size: 12m2 / 16.0x16.0'
Robert Zebahl
8" f/6, 80x + [OIII], Bortle 4, SQM-L 21.2
Conditions in the target region: SQM-L 20.6
Unfortunately nothing seen.

FAILED
René Merting
12.5" f/4.5, 72x + [OIII], SQM-L 21.5
bei 45x und [OIII] ist der südöstliche Stern des Parallelogramms von einem schwachen diffusem Leuchten umgeben - größte Helligkeit südlich und südwestlich von diesem Stern - bei 72x und [OIII] bleibt das Glühen diffus aber deutlich sichtbar - echte Begrenzungen sind an keiner Stelle auszumachen - kein typischer Abel-PN-Anblick
MODERATE

Arp 89 (GxG)

../images/dss/dss2blue_084244.00_+141700.00_7_web.jpg
Image source: DSS II (blue) - 7×7'
Name: Arp89
Type: GxG
Constellation: Cnc
Coordinates: 08h42m44.00s / +14°17'00.00"

Group Members:
NGC2648 (UGC4541, H3.49) 11m8 3.2x1.1' (150°)
MCG+2-22-6 (PGC24469) 14m2 1.5x0.4'
Robert Zebahl
8" f/6, 150x, Bortle 4
Only the bright NGC2648 was evident with averted vision: Elongated, slight brightening toward the middle. Probably only the bright core area was visible.
EASY

Hickson 37 (GxG)

../images/dss/dss2blue_091337.00_+300000.00_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: Hickson 37, HCG37
Type: GxG
Constellation: Cnc
Coordinates: 09h13m37.00s / +30°00'00.00"

Group Members:
NGC2783A (UGC4859, H3.295) 12m6 2.2x1.5' (168°)
NGC2783B (UGC4856) 14m3 1.7x0.2' (77°)
MCG+5-22-16 (PGC26005, PGC26009) b16m1 0.4x0.3'
MCG+5-22-20 (PGC26004) b15m8 0.4x0.3'
Robert Zebahl
8" f/6, 200x, Bortle 4-, SQM-L 21.0
Conditions in the target region: NELM 5m4+

I only observed the two brightest members.

NGC2783A: Already visible at 80x with averted vision. Appeared roundish, quite well condensed, rather small.

NGC2783B: Appeared more as an almost stellar brightening, in few moments also elongated. Permanently seen with averted vision but pretty faint.
MODERATE

IC 509 (Gx)

../images/dss/dss2blue_083203.56_+240039.10_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: IC509, UGC4456
Type: Gx
Constellation: Cnc
Coordinates: 08h32m03.56s / +24°00'39.10"
Brightness / Size: b14m6 / 1.2x1.1'
Robert Zebahl
8" f/6, 150x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.6
I only used the "interstellarum Deep Sky Atlas". At 80x and 150x I didn't saw anything evident. The next time I will have a detailed finder chart.
FAILED

IC 2329 (Gx)

../images/dss/dss2blue_082219.48_+192457.51_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: IC2329, UGC4365
Type: Gx
Constellation: Cnc
Coordinates: 08h22m19.48s / +19°24'57.51"
Brightness / Size: b15m0 / 2.2x0.3'
Robert Zebahl
8" f/6, 171x, Bortle 4, SQM-L 21.2
Conditions in the target region: SQM-L 20.7
Very faint, quite thin, elongated. Held with averted vision.
DIFFICULT

IC 2340 (Gx)

../images/dss/dss2blue_082330.04_+184457.47_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: IC2340
Type: Gx
Constellation: Cnc
Coordinates: 08h23m30.04s / +18°44'57.47"
Brightness / Size: 13m9 / 1.0x0.7'
Robert Zebahl
8" f/6, 150x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.6
Roundish to slightly oval, rather faint without any noticeable condensation.
MODERATE

IC 2393 (Gx)

../images/dss/dss2blue_084649.16_+281016.52_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: IC2393, UGC4589
Type: Gx
Constellation: Cnc
Coordinates: 08h46m49.16s / +28°10'16.52"
Brightness / Size: b14m6 / 1.0x0.7'
Robert Zebahl
8" f/6, 150x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.7
Oval, slightly condensed, fading very diffusely.
MODERATE

IC 2428 (Gx)

../images/dss/dss2blue_090314.66_+303529.06_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: IC2428, UGC4747
Type: Gx
Constellation: Cnc
Coordinates: 09h03m14.66s / +30°35'29.06"
Brightness / Size: b14m7 / 1.7x0.3'
Robert Zebahl
8" f/6, 80x, Bortle 4, SQM-L 21.2
Conditions in the target region: SQM-L 20.9
At 80x quite faint, elongated. At 150x relatively large, elongated, tapering endings, getting broader and slightly brighter towards the middle.
MODERATE

MCG+2-21-10 (Gx)

../images/dss/dss2blue_080224.70_+093550.00_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: MCG+2-21-10, PGC22556
Type: Gx
Constellation: Cnc
Coordinates: 08h02m24.70s / +09°35'50.00"
Brightness / Size: b15m0 / 0.5x0.4'
Robert Zebahl
8" f/6, 150x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.5
Close to brighter field star, small, roundish, evenly bright.
MODERATE

Messier 44 (OC)

../images/dss/dss2blue_084024.00_+194000.00_95_web.jpg
Image source: DSS II (blue) - 95×95'
Name: Messier 44, M44, NGC2632, Praesepe, Beehive Cluster
Type: OC
Constellation: Cnc
Coordinates: 08h40m24.00s / +19°40'00.00"
Brightness / Size: 3m1 / 95.0x95.0'
Robert Zebahl
naked eye, Bortle 4
Very evident as large, slightly oval, diffuse brightening. Easily seen with direct vision.

EASY
B 8x40, Bortle 4-, NELM 5m7+, SQM-L 20.9
Wonderful cluster for small binoculars. Completely resolved.

EASY
70mm f/5.7, 10x, Bortle 6, SQM-L 19.3

../sketches/2019-02-27_m44.jpg

EASY
4.5" f/8, 28x, Bortle 6, NELM 5m0
Due to the quite large field of view of about 2.4° I got a nice view on M44. Many brighter and some moderately bright stars widely scattered.

EASY
René Merting
naked eye, SQM-L 21.5
ein auffälliger, leicht elongierter Nebelfleck - im südlichen Bereich ist eine Helligkeitszunahme auszumachen - sehr auffällig am Himmel

EASY
B 4x22, SQM-L 21.5
eine länglich wirkende Sternansammlung, spitz im Norden, breiter im Süden - gut ein Dutzend Sterne sind erkennbar - sehr prägnant im Umfeld

EASY
B 8x20, SQM-L 21.5
M 44 wird schön eingerahmt von 4 helleren Sternen - der Haufen selbst zeigt sich unregelmäßig und leicht länglich

EASY
B 8x30, SQM-L 21.5
die hellsten Sterne im Haufen bilden im Zentrum des Haufens ein Dreieck, dessen südlich Seite konkav nach außen gewölbt ist - an der Südseite von diesem Dreieck fallen drei sehr eng zusammen stehende Sterne auf - im Zentrum kann ich einen farbigen Stern erkennen - in der Periphere im das Zentrum sind gut drei Dutzend schwächere Mitglieder erkennbar - ein gigantischer Anblick im 8,8° großen Gesichtsfeld, der Haufen wird schön von vier helleren Sternen eingerahmt, die ein unregelmäßiges Viereck um M 44 bilden

EASY
B 10x50, SQM-L 21.5
das Gesichtsfeld von 6,7° ist genau richtig, um den Haufen schön in Szene zu setzen - ein lockerer unregelmäßiger Haufen mit vielen Sternpaaren, die hellsten davon im Zentrum - im Norden fällt eine nach Süden gebogene Sternlinie auf, die den Haufen zu begrenzen scheint

EASY
B 16x70, SQM-L 21.5
viele gleichhelle Sterne scharen sich um einen farbigen Stern im Zentrum - gleichmäßige Verteilung der Haufenmitglieder, die viele Zweiergruppen bilden - westlich fällt ein kleines Sterndreieck auf

EASY
B 18x70, SQM-L 21.5
gefühlt genauso groß wie M 45, allerdings mit schwächeren Sternen besetzt - auffällig ist ein Dreieck aus helleren Sternen, das aussieht wie ein Weihnachtsbaum - ringsherum noch einmal ein paar schwächere Sterne, die den Haufen oval aussehen lassen - gut 50 bis 60 Sterne sind erkennbar - auch wenn der Haufen im Inneren sehr auffällig ist, sind die Außengrenzen nur sehr schwer auszumachen

EASY
100mm f/6.4, 20x, SQM-L 21.5
bei 20x füllt der OS gut das GF (4,25°) aus - mittig steht ein nicht ganz so starker farbiger Stern - viele Zweier- und Dreier-Sterngruppen
EASY

Messier 67 (OC)

../images/dss/dss2blue_085118.00_+114800.00_30_web.jpg
Image source: DSS II (blue) - 30×30'
Name: Messier 67, M67, NGC2682
Type: OC
Constellation: Cnc
Coordinates: 08h51m18.00s / +11°48'00.00"
Brightness / Size: 6m9 / 30.0x30.0'
Robert Zebahl
B 8x40, Bortle 4, NELM 6m0+, SQM-L 21.0
Oval brightening, not resolvable. Evident star at the edge.

EASY
4.5" f/8, 28x, Bortle 6
At 28x already well resolved with many, more fainter stars. Background appeared still diffuse. On the southwestern edge two brighter stars. At 75x many faint stars.

EASY
120mm f/5, 67x, Bortle 6, SQM-L 19.3

../sketches/2019-02-27_m67.jpg

EASY
8" f/6, 37x, Bortle 4
Worthwhile! Very evident, rich with more fainter stars. Background appeared diffuse. At higher magnification I could see several star chains and densifications. A brighter star on the edge.

EASY
René Merting
B 4x22, SQM-L 21.5
direkt als leichter Nebelschimmer ohne Sterne erkennbar - im Zentrum leicht heller

EASY
B 8x20, SQM-L 21.5
ein länglicher Nordost-Südwest-ausgedehnter Nebel - der Fleck wirkt nach SW ein wenig aufgewölbt - ein heller Stern im Nordosten und ein schwächerer im SW sind erkennbar

EASY
B 8x30, SQM-L 21.5
ein auffälliger Nebelfleck, der nach Südwesten verzogen scheint - hier und da offenbaren sich einige Lichtpunkte, im Nordosten steht ein hellerer Stern - Eindruck nicht unähnlich einer hellen Galaxie

EASY
B 10x50, SQM-L 21.5
ein heller länglicher Nebel mit einer etwas helleren Südkante - leichte Granulation im Süden, im Norden etwas diffuser - zwei Sterne im Südwesten können aufgelöst werden - insgesamt schön anzusehen

EASY
B 16x70, SQM-L 21.5
ein auffälliger Nebel, der indirekt stark körnig wirkt - größte Helligkeit im Süden - der Haufen wirkt leicht länglich, OW-elongiert und nach Norden weicher auslaufend, nahe am östlichen Rand steht ein heller Stern - an Süd- und Südwestrand sind indirekt einige Einzelsterne erkennbar

EASY
B 18x70, SQM-L 21.5
ein kleiner feiner Sterngriesel mit einer relativ harten geschwungenen SO-Kante - Der Haufen fächert leicht nach NW auf - hellste Mitglieder im SW, sie bilden dort so etwas wie eine Spitze - wunderschön

EASY
100mm f/6.4, 49x, SQM-L 21.5
bei 20x treten im Haufen südlich einige Mitglieder deutlicher hervor - der Norden und Westen laufen lockerer aus - mit 38x sind schon deutlich mehr Sterne zu sehen und eine den Haufen unmittelbar umhüllende Kette von 7 Sternen ist auffällig - leichte NO-SW-Elongation - bei 49x sind gut 40 Sterne aufgelöst

EASY
12.5" f/4.5, 45x, SQM-L 21.5
bei 45x ein sehr auffälliger Haufen, der gut 1/6 des Gesichtsfeldes (1,9°) füllt - die Mitglieder weisen zumeist zwei verschiedene Helligkeiten auf - im Osten sticht ein hellerer Stern hervor - de Haufen franst ein wenig nach Südwesten auf
EASY

NGC 2513 (Gx)

../images/dss/dss2blue_080224.66_+092448.90_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2513, UGC4184, H3.512
Type: Gx
Constellation: Cnc
Coordinates: 08h02m24.66s / +09°24'48.90"
Brightness / Size: 11m6 / 2.5x2.0'
Robert Zebahl
8" f/6, 80x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.5
At 80x easily visible with averted vision, well condensed, appeared slightly oval, overall pretty diffuse. At 150x almost visible with direct vision, slightly oval and much brighter towards the middle.

MODERATE
René Merting
12.5" f/4.5, 160x, SQM-L 21.5
bei 72x ein kleiner nebliger Fleck mit Helligkeitskonzentration zur Mitte hin - bei 160x flächiger heller Kern
EASY

NGC 2545 (Gx)

../images/dss/dss2blue_081414.13_+212119.88_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2545, UGC4287, H2.627
Type: Gx
Constellation: Cnc
Coordinates: 08h14m14.13s / +21°21'19.88"
Brightness / Size: 12m4 / 2.2x1.2'
Robert Zebahl
8" f/6, 150x, Bortle 4
Obviously oval, evenly bright, fairly faint.
MODERATE

NGC 2553 (Gx)

../images/dss/dss2blue_081735.03_+205411.62_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2553
Type: Gx
Constellation: Cnc
Coordinates: 08h17m35.03s / +20°54'11.62"
Brightness / Size: 13m9 / 1.7x0.8'
Robert Zebahl
8" f/6, 150x, Bortle 4
Roundish. Core seems a bit brighter.
DIFFICULT

NGC 2556 (Gx)

../images/dss/dss2blue_081900.87_+205613.31_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2556
Type: Gx
Constellation: Cnc
Coordinates: 08h19m00.87s / +20°56'13.31"
Brightness / Size: 14m5 / 0.4x0.2'
Robert Zebahl
8" f/6, 210x, Bortle 4
Short try at 210x & 265x.
FAILED

NGC 2557 (Gx)

../images/dss/dss2blue_081910.74_+212608.57_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2557, IC2293, UGC4330
Type: Gx
Constellation: Cnc
Coordinates: 08h19m10.74s / +21°26'08.57"
Brightness / Size: 13m2 / 1.2x1.0'
Robert Zebahl
8" f/6, 150x, Bortle 4
Oval shape. Well seen with averted vision.
MODERATE

NGC 2558 (Gx)

../images/dss/dss2blue_081912.79_+203038.56_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2558, UGC4331, H3.606
Type: Gx
Constellation: Cnc
Coordinates: 08h19m12.79s / +20°30'38.56"
Brightness / Size: 13m0 / 1.8x1.3'
Robert Zebahl
8" f/6, 80x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.6
At 80x and 150x pretty faint, rather small, round, getting slightly brighter towards the middle.
MODERATE

NGC 2560 (Gx)

../images/dss/dss2blue_081951.88_+205906.16_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2560, UGC4337
Type: Gx
Constellation: Cnc
Coordinates: 08h19m51.88s / +20°59'06.16"
Brightness / Size: 13m3 / 1.4x0.3'
Robert Zebahl
8" f/6, 150x, Bortle 4
Very faint, very elongated, thin.
DIFFICULT

NGC 2562 (Gx)

../images/dss/dss2blue_082023.68_+210753.37_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2562, UGC4345, H3.607
Type: Gx
Constellation: Cnc
Coordinates: 08h20m23.68s / +21°07'53.37"
Brightness / Size: 12m9 / 1.0x0.7'
Robert Zebahl
8" f/6, 150x, Bortle 4
Fairly faint. Core was a bit brighter and seems to be oval.
DIFFICULT

NGC 2563 (Gx)

../images/dss/dss2blue_082035.68_+210404.30_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2563, UGC4347, H2.634
Type: Gx
Constellation: Cnc
Coordinates: 08h20m35.68s / +21°04'04.30"
Brightness / Size: 12m2 / 2.0x1.7'
Robert Zebahl
8" f/6, 150x, Bortle 4
Roundish, fairly faint. Slightly brighter core.
DIFFICULT

NGC 2565 (Gx)

../images/dss/dss2blue_081948.34_+220153.16_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2565, UGC4334
Type: Gx
Constellation: Cnc
Coordinates: 08h19m48.34s / +22°01'53.16"
Brightness / Size: 12m6 / 1.9x0.9'
Robert Zebahl
8" f/6, 150x, Bortle 4
Bright, elongated core with fainter, oval halo.
MODERATE

NGC 2569 (Gx)

../images/dss/dss2blue_082121.16_+205202.54_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2569
Type: Gx
Constellation: Cnc
Coordinates: 08h21m21.16s / +20°52'02.54"
Brightness / Size: 14m3 / 0.6x0.5'
Robert Zebahl
8" f/6, 210x, Bortle 4
Glimpsed with averted vision. Extremely compact brightening.
DIFFICULT

NGC 2570 (Gx)

../images/dss/dss2blue_082122.52_+205437.53_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2570, UGC4354
Type: Gx
Constellation: Cnc
Coordinates: 08h21m22.52s / +20°54'37.53"
Brightness / Size: 14m5 / 1.1x0.6'
Robert Zebahl
8" f/6, 210x, Bortle 4 FAILED

NGC 2572 (Gx)

../images/dss/dss2blue_082124.60_+190851.53_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2572, UGC4355
Type: Gx
Constellation: Cnc
Coordinates: 08h21m24.60s / +19°08'51.53"
Brightness / Size: 13m8 / 1.3x0.5'
Robert Zebahl
8" f/6, 150x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.6
Pretty faint, appeared partially oval, slightly condensed.
MODERATE

NGC 2581 (Gx)

../images/dss/dss2blue_082430.97_+183549.44_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2581, UGC4388
Type: Gx
Constellation: Cnc
Coordinates: 08h24m30.97s / +18°35'49.44"
Brightness / Size: 13m3 / 1.1x0.8'
Robert Zebahl
8" f/6, 150x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.6
Roundish, faint.
MODERATE

NGC 2582 (Gx)

../images/dss/dss2blue_082512.08_+202005.25_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2582, IC2359, UGC4391, H3.753
Type: Gx
Constellation: Cnc
Coordinates: 08h25m12.08s / +20°20'05.25"
Brightness / Size: 13m0 / 1.2x1.2'
Robert Zebahl
8" f/6, 80x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.6
At 80x very faint, roundish, evenly bright. At 150x still faint, roundish, without noticeable condensation.
MODERATE

NGC 2595 (Gx)

../images/dss/dss2blue_082741.99_+212844.73_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2595, UGC4422, H3.599
Type: Gx
Constellation: Cnc
Coordinates: 08h27m41.99s / +21°28'44.73"
Brightness / Size: 12m3 / 3.2x2.4'
Robert Zebahl
8" f/6, 100x, Bortle 4
Roundish, extremely faint.
DIFFICULT

NGC 2597 (Gx)

../images/dss/dss2blue_083002.54_+212918.45_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2597, NGC2598, UGC4443
Type: Gx
Constellation: Cnc
Coordinates: 08h30m02.54s / +21°29'18.45"
Brightness / Size: 13m6 / 1.0x0.4'
Robert Zebahl
8" f/6, 210x, Bortle 4
Barely seen with averted vision as very compact brightening.
DIFFICULT

NGC 2599 (Gx)

../images/dss/dss2red_083211.29_+223338.09_5_web.jpg
Image source: DSS II (red) - 5×5'
Name: NGC2599, UGC4458, H3.234
Type: Gx
Constellation: Cnc
Coordinates: 08h32m11.29s / +22°33'38.09"
Brightness / Size: 12m2 / 1.9x1.7'
Robert Zebahl
8" f/6, 150x, Bortle 4
Roundish, evenly bright, fairly compact.
MODERATE

NGC 2623 (Gx)

../images/dss/dss1_083824.02_+254516.29_5_web.jpg
Image source: DSS I - 5×5'
Name: NGC2623, UGC4509, Arp243
Type: Gx
Constellation: Cnc
Coordinates: 08h38m24.02s / +25°45'16.29"
Brightness / Size: 13m4 / 2.4x0.7'
René Merting
12.5" f/4.5, 206x, SQM-L 21.5
bei 111x wird indirekt besehen der Schimmer deutlicher, der schon mit 72x schwach zu erahnen war - in guten Momenten wird eine leichte NO-SW-Elongation erkennbar - insgesamt dennoch ein sehr diffuser Eindruck - beste Sichtbarkeit bei 206x, allerdings noch immer nur indirekt erkennbar - die Galaxie wirkt meist rund
MODERATE

NGC 2624 (Gx)

../images/dss/dss2blue_083809.63_+194331.99_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2624, UGC4506
Type: Gx
Constellation: Cnc
Coordinates: 08h38m09.63s / +19°43'31.99"
Brightness / Size: 13m7 / 0.8x0.5'
Background galaxy of Messier 44.

Robert Zebahl
8" f/6, 216x, Bortle 5+, SQM-L 20.9
Round, very compact, difficult to hold.
DIFFICULT

NGC 2625 (Gx)

../images/dss/dss2blue_083823.23_+194258.97_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2625
Type: Gx
Constellation: Cnc
Coordinates: 08h38m23.23s / +19°42'58.97"
Brightness / Size: 14m3 / 0.7x0.6'
Background galaxy of Messier 44.

Robert Zebahl
8" f/6, 216x, Bortle 5+, SQM-L 20.9
Round, very compact, difficult to hold.
DIFFICULT

NGC 2643 (Gx)

../images/dss/dss2blue_084151.71_+194208.51_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2643, IC2390
Type: Gx
Constellation: Cnc
Coordinates: 08h41m51.71s / +19°42'08.51"
Brightness / Size: b15m6 / 0.7x0.4'
Background galaxy of Messier 44.

Robert Zebahl
8" f/6, 216x, Bortle 5+, SQM-L 20.9
Very difficult. Glimpsed in few moments as very compact, almost stellar brightening.
DIFFICULT

NGC 2647 (Gx)

../images/dss/dss2blue_084243.15_+193902.30_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2647
Type: Gx
Constellation: Cnc
Coordinates: 08h42m43.15s / +19°39'02.30"
Brightness / Size: 14m1 / 0.8x0.7'
Background galaxy of Messier 44.

Robert Zebahl
8" f/6, 216x, Bortle 5+, SQM-L 20.9
Compact, very faint. Almost permanently held with averted vision.
DIFFICULT

NGC 2648 (Gx)

../images/dss/dss2blue_084239.83_+141707.81_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2648, UGC4541, H3.49
Group: Arp89
Type: Gx
Constellation: Cnc
Coordinates: 08h42m39.83s / +14°17'07.81"
Brightness / Size: 11m8 / 3.2x1.1'
Robert Zebahl
8" f/6, 150x, Bortle 4
Elongated, slight brightening toward the middle. Evident with averted vision. Probably only the bright core area was visible.
EASY

NGC 2661 (Gx)

../images/dss/dss2blue_084559.55_+123711.70_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2661, UGC4584, H3.50
Type: Gx
Constellation: Cnc
Coordinates: 08h45m59.55s / +12°37'11.70"
Brightness / Size: 12m8 / 1.4x1.3'
Robert Zebahl
8" f/6, 80x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.5
Faint, evenly bright, roundish. Close to a medium bright field star.
MODERATE

NGC 2664 (OC)

../images/dss/dss2blue_084706.00_+123633.00_10_web.jpg
Image source: DSS II (blue) - 10×10'
Name: NGC2664
Type: OC
Constellation: Cnc
Coordinates: 08h47m06.00s / +12°36'33.00"
Brightness / Size: - / 5.0x5.0'
Robert Zebahl
8" f/6, 80x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.5
Inconspicuous, not discernible as an open cluster. Just 4 dominating stars.
MODERATE

NGC 2720 (Gx)

../images/dss/dss2blue_085908.09_+110856.69_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2720, UGC4710
Type: Gx
Constellation: Cnc
Coordinates: 08h59m08.09s / +11°08'56.69"
Brightness / Size: 12m8 / 1.2x1.1'
Robert Zebahl
8" f/6, 150x, Bortle 4
Round, evenly bright.
DIFFICULT

NGC 2725 (Gx)

../images/dss/dss2blue_090103.23_+110554.19_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2725, UGC4732
Type: Gx
Constellation: Cnc
Coordinates: 09h01m03.23s / +11°05'54.19"
Brightness / Size: 13m4 / 0.7x0.6'
Robert Zebahl
8" f/6, 210x, Bortle 4
Very faint, evenly bright, roundish. Barely seen with averted vision.
DIFFICULT

NGC 2728 (Gx)

../images/dss/dss2blue_090140.96_+110458.46_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2728, UGC4738
Type: Gx
Constellation: Cnc
Coordinates: 09h01m40.96s / +11°04'58.46"
Brightness / Size: 13m6 / 1.1x0.8'
Robert Zebahl
8" f/6, 210x, Bortle 4
Barely seen with averted vision. Very difficult! Very compact, diffuse brightening.
DIFFICULT

NGC 2730 (Gx)

../images/dss/dss2blue_090215.84_+165017.51_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2730, UGC4743
Type: Gx
Constellation: Cnc
Coordinates: 09h02m15.84s / +16°50'17.51"
Brightness / Size: 13m0 / 1.7x1.3'
Robert Zebahl
8" f/6, 100x, Bortle 4, SQM-L 21.0
Roundish, quite faint, evenly bright.
MODERATE

NGC 2731 (Gx)

../images/dss/dss2blue_090208.39_+081806.36_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2731, UGC4741
Type: Gx
Constellation: Cnc
Coordinates: 09h02m08.39s / +08°18'06.36"
Brightness / Size: 13m5 / 0.8x0.5'
Robert Zebahl
8" f/6, 80x, Bortle 4, SQM-L 21.2
Conditions in the target region: SQM-L 20.6
Roundish, nearly evenly bright. Field star close to the northeastern edge.
MODERATE

NGC 2744 (Gx)

../images/dss/dss2blue_090439.02_+182752.14_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2744, UGC4757, H3.60
Type: Gx
Constellation: Cnc
Coordinates: 09h04m39.02s / +18°27'52.14"
Brightness / Size: 13m5 / 1.6x1.2'
Robert Zebahl
8" f/6, 200x, Bortle 4, NELM 6m0, SQM-L 21.0
Roundish, quite compact, evenly bright. Rather faint.
MODERATE

NGC 2749 (Gx)

../images/dss/dss2blue_090521.31_+181847.25_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2749, UGC4763
Type: Gx
Constellation: Cnc
Coordinates: 09h05m21.31s / +18°18'47.25"
Brightness / Size: 11m8 / 1.8x1.7'
Robert Zebahl
8" f/6, 150x, Bortle 4, NELM 6m0, SQM-L 21.0
Roundish with obviously brighter center. Appeared in some moments slightly oval. Evident with averted vision.
MODERATE

NGC 2752 (Gx)

../images/dss/dss2blue_090543.06_+182022.61_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2752, UGC4772
Type: Gx
Constellation: Cnc
Coordinates: 09h05m43.06s / +18°20'22.61"
Brightness / Size: 13m7 / 1.8x0.4'
Robert Zebahl
8" f/6, 200x, Bortle 4, NELM 6m0, SQM-L 21.0
Elongated, evenly bright, very faint. Glimpsed with averted vission.
DIFFICULT

NGC 2766 (Gx)

../images/dss/dss2blue_090847.53_+295153.15_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2766, UGC4801
Type: Gx
Constellation: Cnc
Coordinates: 09h08m47.53s / +29°51'53.15"
Brightness / Size: 13m6 / 1.4x0.5'
Robert Zebahl
8" f/6, 150x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.7
Not evident, slightly elongated, getting a bit brighter towards the middle.
MODERATE

NGC 2775 (Gx)

../images/dss/dss2blue_091020.11_+070216.53_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2775, UGC4820, H1.2
Type: Gx
Constellation: Cnc
Coordinates: 09h10m20.11s / +07°02'16.53"
Brightness / Size: 10m5 / 4.5x3.6'
Robert Zebahl
8" f/6, 37x, Bortle 4, SQM-L 21.0
Conditions in the target region: SQM-L 20.6
At 37x bright, evident, slightly condensed, roundish. At 80x bright, roundish core area with slightly oval halo.
EASY

NGC 2783A (Gx)

../images/dss/dss2blue_091339.49_+295934.07_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2783A, UGC4859, H3.295
Group: HCG37
Type: Gx
Constellation: Cnc
Coordinates: 09h13m39.49s / +29°59'34.07"
Brightness / Size: 12m6 / 2.2x1.5'
Robert Zebahl
8" f/6, 80x, Bortle 4-, SQM-L 21.0
Conditions in the target region: NELM 5m4+
Appeared roundish, quite well condensed, rather small.
MODERATE

NGC 2783B (Gx)

../images/dss/dss2blue_091333.10_+300000.45_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2783B, UGC4856
Group: HCG37
Type: Gx
Constellation: Cnc
Coordinates: 09h13m33.10s / +30°00'00.45"
Brightness / Size: 14m3 / 1.7x0.2'
Robert Zebahl
8" f/6, 200x, Bortle 4-, SQM-L 21.0
Conditions in the target region: NELM 5m4+
Appeared more as an almost stellar brightening, in few moments also elongated. Permanently seen with averted vision but pretty faint.
DIFFICULT

NGC 2789 (Gx)

../images/dss/dss2blue_091459.62_+294349.21_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2789, UGC4875
Type: Gx
Constellation: Cnc
Coordinates: 09h14m59.62s / +29°43'49.21"
Brightness / Size: 12m2 / 2.0x2.0'
Robert Zebahl
8" f/6, 80x, Bortle 4-, SQM-L 21.0
Conditions in the target region: NELM 5m4+
At 80x round, slight brightening toward middle, without distinct core. I glimpsed a stellar brightening within the galaxy with averted vision. At 150x the galaxy appeared round to slightly oval. The stellar brightening I could held with averted vision. It was probably the core itself.
MODERATE

NGC 2794 (Gx)

../images/dss/dss2blue_091601.79_+173523.48_7_web.jpg
Image source: DSS II (blue) - 7×7'
Name: NGC2794, UGC4885
Type: Gx
Constellation: Cnc
Coordinates: 09h16m01.79s / +17°35'23.48"
Brightness / Size: 13m2 / 1.2x1.2'
Robert Zebahl
8" f/6, 150x, Bortle 4-, SQM-L 20.9
Roundish, somewhat brighter center, a bit fainter than northern NGC2795. Overall rather faint.
MODERATE

NGC 2795 (Gx)

../images/dss/dss2blue_091603.89_+173742.47_7_web.jpg
Image source: DSS II (blue) - 7×7'
Name: NGC2795, UGC4887
Type: Gx
Constellation: Cnc
Coordinates: 09h16m03.89s / +17°37'42.47"
Brightness / Size: 12m8 / 1.4x1.0'
Robert Zebahl
8" f/6, 150x, Bortle 4-, SQM-L 20.9
Roundish, slight brightening toward the middle, a bit brighter than southern NGC2794, but overall rather faint.
MODERATE

NGC 2796 (Gx)

../images/dss/dss2blue_091641.85_+305455.16_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2796, UGC4893, H3.296
Type: Gx
Constellation: Cnc
Coordinates: 09h16m41.85s / +30°54'55.16"
Brightness / Size: 13m5 / 1.1x0.7'
Robert Zebahl
8" f/6, 80x, Bortle 4-, SQM-L 21.0
Conditions in the target region: NELM 5m4+
At 80x rather evenly bright and compact. At 150x slightly oval with distinct, compact, but faint core.
MODERATE

NGC 2802 (Gx)

../images/dss/dss2blue_091641.41_+185748.79_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2802, UGC4897, H3.62
Type: Gx
Constellation: Cnc
Coordinates: 09h16m41.41s / +18°57'48.79"
Brightness / Size: 14m3 / 1.1x0.6'
Robert Zebahl
8" f/6, 200x, Bortle 4, SQM-L 21.0
I was probably too tired.
FAILED

NGC 2803 (Gx)

../images/dss/dss2blue_091643.88_+185716.77_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2803, UGC4898, H3.63
Type: Gx
Constellation: Cnc
Coordinates: 09h16m43.88s / +18°57'16.77"
Brightness / Size: 14m0 / 1.1x0.9'
Robert Zebahl
8" f/6, 200x, Bortle 4, SQM-L 21.0
I was probably too tired.
FAILED

NGC 2819 (Gx)

../images/dss/dss2blue_091809.31_+161152.68_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2819, UGC4924
Type: Gx
Constellation: Cnc
Coordinates: 09h18m09.31s / +16°11'52.68"
Brightness / Size: 12m8 / 1.4x1.3'
Robert Zebahl
8" f/6, 150x, Bortle 4, SQM-L 21.0
Rather faint, roundish with slightly brighter center.
MODERATE

NGC 2824 (Gx)

../images/dss/dss2blue_091902.23_+261612.00_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: NGC2824, UGC4933
Type: Gx
Constellation: Cnc
Coordinates: 09h19m02.23s / +26°16'12.00"
Brightness / Size: 13m3 / 0.9x0.6'
Robert Zebahl
8" f/6, 80x, Bortle 4-, SQM-L 21.0
Conditions in the target region: NELM 5m4+
At 80x almost stellar, at 150x quite compact, slightly condensed, without distinct core.
MODERATE

PGC 22621 (Gx)

../images/dss/dss2blue_080343.20_+095735.34_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: PGC22621
Type: Gx
Constellation: Cnc
Coordinates: 08h03m43.20s / +09°57'35.34"
Brightness / Size: b15m1 / 1.3x0.9'
Robert Zebahl
8" f/6, 150x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.5
At 150x anything but evident and just visible as compact brightening. At 220x roundish, diffuse, barely condensed. I probably saw only the bright core area.
MODERATE

STF 1171 (**)

Name: STF1171
Type: **
Constellation: Cnc
Coordinates: 08h01m00.78s / +23°34'59.20"

Components:
m1 m2 ρ θ Year
6m5 9m9 2.0" 326° 2015
Robert Zebahl
102mm f/11, 187x
Observation from the city at half moon. At magnifications between 187x and 280x I could see the very dim companion almost permanently near the first diffraction ring. But the diffraction ring itself was hardly visible. Main problem here was probably the low brightness of the companion.

René Merting
100mm f/6.4, 213x
bei 142x schmiegt sich Komponente B an der Grenze zur Sichtbarkeit im Süden von Komponente A ganz dicht an den viel größeren Bruder, der ohne Beugungsringe auskommt - bei 213x zeigt sich B leicht abgesetzt von A

STF 1177 (**)

Name: STF1177, 17 Cnc
Type: **
Constellation: Cnc
Coordinates: 08h05m37.06s / +27°31'46.90"

Components:
m1 m2 ρ θ Year
6m7 7m4 3.5" 350° 2019
Robert Zebahl
70mm f/5.7, 57x, Bortle 6-
Easy to separate, but still relatively close together. Well visible difference in brightness. Color of the components was not clearly visible. Nice view overall.

René Merting
100mm f/6.4, 64x
bei 107x sehe ich ein knapp getrenntes schön eng stehendes Pärchen - Komponente B im Norden ist eine dreiviertel Größenklasse schwächer - das Weiß von A wirkt kühler - zurück auf 64x sehe ich eine Ameise mit dünnem Hals, in ruhigen Momenten zeigen sich beide Sterne sogar getrennt

STF 1187 (**)

Name: STF1187
Type: **
Constellation: Cnc
Coordinates: 08h09m30.45s / +32°13'18.80"

Components:
m1 m2 ρ θ Year
AB 7m2 8m0 3.1" 20° 2019

../images/binary-star-orbits/STF1187-AB-orbit.jpg

Robert Zebahl
70mm f/5.7, 57x, Bortle 6-
Split. Components very tight with noticeable difference in brightness.

STF 1245 (**)

Name: STF1245
Type: **
Constellation: Cnc
Coordinates: 08h35m51.05s / +06°37'13.90"

Components:
m1 m2 ρ θ Year
AB 6m0 7m2 10.0" 25° 2019
AC 6m0 10m7 100.4" 109° 2017
AD 6m0 11m9 110.3" 292° 2017
AE 6m0 9m6 114.8" 207° 2017
Robert Zebahl
70mm f/5.7, 57x, Bortle 6-
AB at 22x separated, but very close, uneven pair. A appeared white-yellowish, B orange, partly reddish. Opposite in a wide separation the fainter component E was visible. At 57x, A appeared white-yellowish, B orange.

../sketches/2020-03-24_stf1245.jpg

René Merting
100mm f/6.4, 32x
AB: bei 32x ein sehr enges Pärchen, gerade so getrennt - das Sternpaar ist heller, als viele andere Sterne in der unmittelbaren Umgebung, dadurch ist es sehr auffällig - Komponente A strahlt reinweiß, B steht dem in nichts nach, auch wenn die Komponente gut eine Magnitude schwächer ist

STF 1268 (**)

Name: STF1268, iota Cnc, 48 Cnc
Type: **
Constellation: Cnc
Coordinates: 08h46m41.82s / +28°45'35.60"

Components:
m1 m2 ρ θ Year
4m1 6m0 30.7" 308° 2018
Robert Zebahl
70mm f/5.7, 22x, Bortle 6, SQM-L 19.4
Striking, widely separated with noticeable difference in brightness. Moderate but beautiful color contrast: white-yellowish and grey-bluish.

102mm f/11, 28x
Grand sight! Pretty wide apart and unequal. A: mild orange, B: very nice light blue.

STF 1291 (**)

Name: STF1291, 57 Cnc
Type: **
Constellation: Cnc
Coordinates: 08h54m14.65s / +30°34'45.80"

Components:
m1 m2 ρ θ Year
AB 6m1 6m4 1.5" 310° 2019
AB-C 5m5 9m2 54.6" 204° 2015

../images/binary-star-orbits/STF1291-AB-orbit.jpg

Robert Zebahl
70mm f/5.7, 133x, Bortle 6, SQM-L 19.4
AB: Immediately apparent as a double star. Diffraction disks overlapping slightly ('8'). Difference in brightness visible.

STF 1294 & SIN 41 (**)

Name: STF1294 & SIN41, WDS08573+3254
Type: **
Constellation: Cnc
Coordinates: 08h57m17.08s / +32°53'57.90"

Components:
m1 m2 ρ θ Year
STF1294 AB 9m0 10m8 15.6" 340° 2015
SIN41 AC 9m0 12m6 191.3" 285° 2015
Robert Zebahl
102mm f/11, 28x, Bortle 6-, SQM-L 19.0
STF1294 (AB): At 28x relatively widely separated and rather less striking near the bright star sigma 2 Cnc. Component A appeared slightly orange, the companion only as a dim star. Similar view at 86x.

STF 1298 (**)

Name: STF1298, 66 Cnc
Type: **
Constellation: Cnc
Coordinates: 09h01m24.13s / +32°15'08.30"

Components:
m1 m2 ρ θ Year
AB 6m0 8m6 4.4" 137° 2017
AC 6m0 12m0 187.6" 318° 2015
Robert Zebahl
70mm f/5.7, 80x, Bortle 6, SQM-L 19.4
AB: At 67x and 80x the companion is visible as a very faint star close to the main component. At 133x it is only visible as a slightly blurred tiny star just outside the first diffraction ring of the primary component.

102mm f/11, 62x, Bortle 6-, SQM-L 19.0
AB: At 62x clearly separated, significant difference in brightness. The companion can be seen well as a faint little star, apart from the primary component. At 125x easy to split. Component A appeared rather white.

STT 195 (**)

Name: STT195
Type: **
Constellation: Cnc
Coordinates: 08h53m57.80s / +08°25'17.70"

Components:
m1 m2 ρ θ Year
AB 7m7 8m3 9.8" 138° 2020
Robert Zebahl
70mm f/5.7, 80x, Bortle 6-
At 22x very nicely separated with a small difference in brightness. The components are still pretty tight. Altogether a rather dim double star. At 80x the color difference is well visible: primary component appears slightly orange, the companion pale blue.

T Cnc (C*)

Name: T Cnc
Type: *, C*, V*
Constellation: Cnc
Coordinates: 08h56m40.15s / +19°50'56.95"
Brightness: 7m6-10m5 (482d)
Robert Zebahl
8" f/6, 37x, Bortle 4, NELM 6m0, SQM-L 21.0
2015-03-19: Relatively bright, orange colored, moderately evident.
ORANGE COLORED

UGC 4171 (Gx)

../images/dss/dss2blue_080130.78_+094227.42_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: UGC4171
Type: Gx
Constellation: Cnc
Coordinates: 08h01m30.78s / +09°42'27.42"
Brightness / Size: b14m6 / 2.5x0.3'
Robert Zebahl
8" f/6, 150x, Bortle 4, SQM-L 21.1
Conditions in the target region: SQM-L 20.6
Quite small, elongated, thin. Field star almost embedded in halo.

MODERATE
René Merting
12.5" f/4.5, 160x, SQM-L 21.5
bei 72x blitzt indirekt ab und zu ein zarter Schimmer über einem helleren Stern auf - die Galaxie ist OW-ausgerichtet und zeigt genau auf zwei weitere helle Sterne im Westen - bei 111x wird es eher schwerer - mit viel Geduld und Field Sweeping liegt die Galaxie wie ein zarter Schimmer über dem Stern - der Stern wirkt leicht unscharf und es scheint, als ob der Stern einen Hof hat mit Verlängerungen nach Osten und Westen - bei 160x wirkt die Galaxie weiter kaum wie eine Spindel, sondern eher wie ein länglicher diffuser Fleck mit der größten Helligkeit genau nordnordwestlich über dem Stern
DIFFICULT

UGC 4197 (Gx)

../images/dss/dss2blue_080325.51_+100302.23_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: UGC4197
Type: Gx
Constellation: Cnc
Coordinates: 08h03m25.51s / +10°03'02.23"
Brightness / Size: b14m5 / 2.1x0.3'
Robert Zebahl
8" f/6, 150x, Bortle 4-, SQM-L 20.9
Conditions in the target region: SQM-L 20.5
Less evident, elongated, thin, evenly bright, pretty small.
MODERATE

UGC 4198 (Gx)

../images/dss/dss2blue_080343.20_+095735.34_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: UGC4198
Type: Gx
Constellation: Cnc
Coordinates: 08h03m43.20s / +09°57'35.34"
Brightness / Size: b15m1 / 1.5x1.1'
Robert Zebahl
8" f/6, 150x, Bortle 4, SQM-L 21.1
Conditions in the target region: SQM-L 20.6
Roundish, evenly bright.
MODERATE

UGC 4526 (Gx)

../images/dss/dss2blue_084053.81_+192117.47_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: UGC4526
Type: Gx
Constellation: Cnc
Coordinates: 08h40m53.81s / +19°21'17.47"
Brightness / Size: 13m9 / 1.4x0.3'
Background galaxy of Messier 44.

Robert Zebahl
8" f/6, 200x, Bortle 4, SQM-L 21.0
Very difficult. After several failed attempts I was able to glimpse this galaxy as a rather compact brightening with averted vision north of a 14.55 mag star, which helps finding.
DIFFICULT

UGC 4550 (Gx)

../images/dss/dss2blue_084316.00_+130509.05_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: UGC4550
Type: Gx
Constellation: Cnc
Coordinates: 08h43m16.00s / +13°05'09.05"
Brightness / Size: b14m8 / 3.0x0.5'
Robert Zebahl
8" f/6, 171x, Bortle 4, SQM-L 21.1
Conditions in the target region: SQM-L 20.7
Extremely faint, evenly bright, elongated. Glimpsed with averted vision.

DIFFICULT
René Merting
12.5" f/4.5, 160x, SQM-L 21.5
bei 111x und 160x blitzt die Superthin als schwacher länglicher Schimmer auf und ist mitunter auch länger haltbar - die Sterne nördlich helfen mitunter ein wenig beim Wiederfinden der richtigen Position - bei 206x Fehlanzeige
MODERATE

UGC 4869 (Gx)

../images/dss/dss2blue_091434.33_+300827.33_5_web.jpg
Image source: DSS II (blue) - 5×5'
Name: UGC4869
Type: Gx
Constellation: Cnc
Coordinates: 09h14m34.33s / +30°08'27.33"
Brightness / Size: b14m5 / 2.5x0.6'
Robert Zebahl
8" f/6, 150x, Bortle 4-, SQM-L 21.0
Conditions in the target region: NELM 5m4+
Faint, very elongated (NE-SW), rather evenly bright.
MODERATE

X Cnc (C*)

Name: X Cnc
Type: *, C*, V*
Constellation: Cnc
Coordinates: 08h55m22.88s / +17°13'52.59"
Brightness: 5m7-6m9 (180d)
Robert Zebahl
8" f/6, 37x, Bortle 4, NELM 6m0, SQM-L 21.0
2015-03-19: Fairly bright, light orange, less evident.
ORANGE COLORED

zeta Cnc (**)

Name: zeta Cnc, 16 Cnc
Type: **
Constellation: Cnc
Coordinates: 08h12m12.79s / +17°38'51.20"

Components:
m1 m2 ρ θ Year
STF1196 AC 5m3 5m8 6.2" 62° 2020
STF1196 AB-C 4m9 5m8 6.0" 64° 2020
STF1196 AB 5m3 6m2 1.0" 2020
HUT1 Ca-Cb 6m2 7m1 0.3" 32° 2019

../images/binary-star-orbits/STF1196-AB-C-orbit.jpg ../images/binary-star-orbits/STF1196-AB-orbit.jpg ../images/binary-star-orbits/HUT1-Ca-Cb-orbit.jpg

Robert Zebahl
70mm f/5.7, 133x, Bortle 6-
The wide pair AB-C is already separable at 22x. The pair AB shows at 133x two clearly overlapping diffraction disks with small difference in brightness, but without any notch.

../sketches/2020-03-24_stf1196.jpg

102mm f/11, 86x, Bortle 6-, SQM-L 19.2
AB-C: Easy to separate. A: light grey, B: pale orange.

120mm f/5, 67x, Bortle 6, SQM-L 19.3
AB-C: Evident difference in brightness, easy to split. Both components of similar color.

120mm f/5, 200x, Bortle 6, SQM-L 19.3
AB: Very tight. The Airy disks were still touching. Slight difference in brightness. Extremely beautiful triple star!

../sketches/2019-02-24_stf1196.jpg