Home

About

Observations - Hints

Observations

Sketches

Worthwhile Regions of the Sky

Skyguide

Contact

deDeutsch

Last update: 2018-12-09

VdS FG

- Bright Nebulas (Ori) -

Aur (7) Cep (11) Gem (1) Per (4) Tau (6)
Cam (2) CMa (1) Mon (3) Ser (1) Tri (4)
Cas (8) Cyg (11) Ori (14) Sgr (2) Vul (2)

IC434 (BN)

DSS
Image source: DSS II (red) - 80×80'
Name: IC434
Type: BN, EN
Constellation: Ori
Coordinates: 05h41m00.00s / -02°30'00.00"
Brightness / Size: - / 70.0x30.0'
8" f/6, 66x + HBeta, Bortle 4
Easily visible, especially when moving the telescope around. Overall very diffuse, particularly to the west end. A more sharply defined edge on the eastern side wasn't visible to me. Maybe my [HBeta] filter has a slightly shifted filter curve!? The Horsehead Nebula (B33) wasn't visible.
EASY

M42 (BN)

DSS
Image source: DSS II (red) - 90×90'
Name: M42, NGC1976, Orion Nebula
Type: BN, EN, RN
Constellation: Ori
Coordinates: 05h35m17.30s / -05°23'28.00"
Brightness / Size: v4.0 mag / 90.0x60.0'
4.5" f/8, 28x, Bortle 6-, NELM 5.0, SQM-L 18.9
NELM 4.1+: Already pleasant without any filter with some details. With UHC and [OIII] impressive view with many details despite urban skies. Especially the southeastern wing was very great.

EASY
8" f/6, 37x, Bortle 4
Must be seen. Hardly describable ;-)
EASY

M43 (BN)

DSS
Image source: DSS II (red) - 30×30'
Name: M43, NGC1982, H3.1
Type: BN, EN
Constellation: Ori
Coordinates: 05h35m31.00s / -05°16'12.00"
Brightness / Size: v7.0 mag / 20.0x15.0'
70mm f/5.7, 50x, Bortle 6
Rather faint, evenly bright, roundish brightening around a medium bright star.

MODERATE
4.5" f/8, 28x, Bortle 6
Even under urban conditions with small aperture fairly well seen as faint brightening.

EASY
8" f/6, 37x, Bortle 4
Get lost in the brilliance of the great orion nebula. In comparison fairly small & faint, nearly evenly bright. Located slightly asymmetrical around a 6.75m star. Obvious more easily with averted vision.
EASY

M78 (BN)

DSS
Image source: DSS II (red) - 15×15'
Name: M78, NGC2068
Type: BN, RN
Constellation: Ori
Coordinates: 05h46m45.96s / +00°03'37.80"
Brightness / Size: v8.3 mag / 8.0x6.0'
M78 is one of the brightest reflection nebulas and is therefore even under not so good conditions or with smaller telescopes well observable.

B 40mm, 8x, Bortle 7, NELM 4.5, SQM-L 18.9
SQM-L 18.3: The sky was too brightened, so I saw nothing.

FAILED
B 40mm, 8x, Bortle 4-, NELM 5.7+, SQM-L 20.9
Rather compact, diffuse brightening. Barely seen with direct vision.

EASY
70mm f/5.7, 20x, Bortle 6, SQM-L 19.2
Small, faint brightening, but was quite well seen with averted vision.

MODERATE
70mm f/5.7, 10x, Bortle 4-, SQM-L 20.9
Pretty small, roundish. Towards one side the nebula was more sharply defined, towards the other side fading into the background.

EASY
8" f/6, 37x, Bortle 4
Quite obvious with slightly irregular shape. Within the nebula the evident binary star BU559 (AC). Towards one side the nebula appears more sharply defined, towards south more diffuse.
EASY

NGC1788 (BN)

DSS
Image source: DSS II (red) - 10×10'
Name: NGC1788, LBN916, H5.32, Bat Nebula
Type: BN, RN
Constellation: Ori
Coordinates: 05h06m54.00s / -03°20'30.00"
Brightness / Size: b5.8 mag / 5.0x3.0'
8" f/6, 37x, Bortle 4+
With averted vision well visible as faint brightening nearby a moderately bright star. At 80x I could see a more fainter, but evident star within the nebula.
MODERATE

NGC1973 (BN)

DSS
Image source: DSS II (red) - 10×10'
Name: NGC1973
Group: Running Man
Type: BN, EN, RN
Constellation: Ori
Coordinates: 05h35m04.80s / -04°43'54.70"
Brightness / Size: v7.0 mag / 5.0x5.0'
4.5" f/8, 28x, Bortle 6
Barely visible with averted vision as a halo around the "central star".

DIFFICULT
8" f/6, 37x, Bortle 4
Relatively small, roundish, evenly bright.
MODERATE

NGC1975 (BN)

DSS
Image source: DSS II (red) - 10×10'
Name: NGC1975
Group: Running Man
Type: BN, EN, RN
Constellation: Ori
Coordinates: 05h35m18.10s / -04°41'05.00"
Brightness / Size: v7.0 mag / 10.0x5.0'
8" f/6, 37x, Bortle 4
Not seen at 37x and 80x, even with UHC & [OIII] filter.
FAILED

NGC1977 (BN)

DSS
Image source: DSS II (red) - 40×40'
Name: NGC1977, H5.30
Group: Running Man
Type: BN, EN, RN
Constellation: Ori
Coordinates: 05h35m16.00s / -04°49'15.00"
Brightness / Size: v7.0 mag / 20.0x10.0'
8" f/6, 37x, Bortle 4
Evenly bright, slightly curved. 3 stars within the nebula. Evident with averted vision.
EASY

NGC1980 (BN)

DSS
Image source: DSS II (red) - 14×14'
Name: NGC1980, H5.31
Type: BN, EN
Constellation: Ori
Coordinates: 05h35m24.00s / -05°54'54.00"
Brightness / Size: - / 14.0x14.0'
8" f/6, 37x, Bortle 4
Visible as obvious halo around the 2.75m star iota Ori. Seem to be a bit more brighter to one side. However the very bright iota Ori can pretend a nebula!
EASY

NGC1999 (BN)

DSS
Image source: DSS II (red) - 5×5'
Name: NGC1999, H4.33, Keyhole Nebula
Type: BN, RN
Constellation: Ori
Coordinates: 05h36m25.00s / -06°42'42.00"
Brightness / Size: b9.5 mag / 2.0x2.0'
70mm f/5.7, 72x, Bortle 6, SQM-L 18.9
At 32x very faint, very small brightening around the central star. At 72x still compact, diffuse, round brightening, but evident with averted vision.

EASY
120mm f/5, 168x, Bortle 6, SQM-L 19.1
Nebula easily seen around the central star. Compared to that star the nebula is slightly shifted towards east.

EASY
8" f/6, 200x, Bortle 4
Already visible at 80x around the bright 10.3m star with averted vision, fairly bright, but compact. Looks like a fuzzy star. At 200x the nebula is evident with averted vision, appears irregular, slightly shifted around the bright star. The darkening (keyhole) stayed hidden to me. I think, that the seeing has influence on the visibility.

EASY
12" f/5, 200x, Bortle 3, NELM 6.4
Well visible with averted vision as diffuse, irregular nebula around the bright star. The keyhole as small darkening was also well seen.
EASY

NGC2024 (BN)

DSS
Image source: DSS II (red) - 30×30'
Name: NGC2024, H5.28, Flame Nebula
Type: BN, EN
Constellation: Ori
Coordinates: 05h41m43.00s / -01°50'30.00"
Brightness / Size: - / 30.0x30.0'
8" f/6, 66x + UHC, Bortle 4
This observation was some time ago. However I could barely see a irregular brightening with direct vision, which was most evident when moving the telescope around. To keep the bright Alnitak (zeta Ori) out of the field of view I used an 18mm ortho.
EASY

NGC2174 (BN)

DSS
Image source: DSS II (red) - 50×50'
Name: NGC2174, Monkey Head Nebula
Type: BN, EN
Constellation: Ori
Coordinates: 06h09m42.00s / +20°30'00.00"
Brightness / Size: v6.9 mag / 40.0x30.0'
8" f/6, 37x + [OIII], Bortle 4, NELM 6.0, SQM-L 20.9
Evident with direct vision, but overall very diffuse with less defined edges, irregular shape. Appeared about 20 arcminutes large. The shape of a monkey head was not noticeable. Apparent "central star" within the nebula. Also with UHC filter well visible.
EASY

Sh2-276 (BN)

Name: Sh2-276, Barnard's Loop
Type: BN, EN
Constellation: Ori
Coordinates: 05h27m30.00s / -03°58'00.00"
Brightness / Size: - / -
Covers a region of about 10x15°.

B 40mm, 8x, Bortle 4-, SQM-L 20.8
I used all available filters (UHC, [OIII] and [HBeta]) in front of the lens, but no nebula was visible.
FAILED

vdB37 (BN)

DSS
Image source: DSS II (blue) - 5×5'
Name: vdB37
Type: BN, RN
Constellation: Ori
Coordinates: 05h18m04.00s / +13°25'04.00"
Brightness / Size: - / 2.0x2.0'
8" f/6, 80x, Bortle 5 FAILED