- Open Clusters (Cnc) -

And (3) Cep (23) CVn (1) Lac (6) Per (13) Sgr (5)
Aql (5) CMa (3) Cyg (23) Lyr (2) Pup (6) Tau (6)
Aur (8) CMi (1) Gem (10) Mon (7) Sct (3) Tri (1)
Cam (3) Cnc (3) Her (1) Oph (3) Ser (2) UMa (1)
Cas (25) Com (1) Hya (1) Ori (11) Sge (1) Vul (5)

M44 (OC)

../dss/dss2blue_084024.00_+194000.00_95_web.jpg
Image source: DSS II (blue) - 95×95'
Name: M44, NGC2632, Praesepe, Beehive Cluster
Type: OC
Constellation: Cnc
Coordinates: 08h40m24.00s / +19°40'00.00"
Brightness / Size: 3.1 mag / 95.0x95.0'
naked eye, Bortle 4
Very evident as large, slightly oval, diffuse brightening. Easily seen with direct vision.

EASY
B 40mm, 8x, Bortle 4-, NELM 5.7+, 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 5.0
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

M67 (OC)

../dss/dss2blue_085118.00_+114800.00_30_web.jpg
Image source: DSS II (blue) - 30×30'
Name: M67, NGC2682
Type: OC
Constellation: Cnc
Coordinates: 08h51m18.00s / +11°48'00.00"
Brightness / Size: 6.9 mag / 30.0x30.0'
B 40mm, 8x, Bortle 4, NELM 6.0+, 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

NGC2664 (OC)

../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'
8" f/6, 80x, Bortle 4-, SQM-L 20.9
SQM-L 20.5: Inconspicuous, not discernible as an open cluster. Just 4 dominating stars.
MODERATE