M 43 (NGC 1982) Bright Nebula in Orion
Located at: RA 05 hours 35 minutes 29 seconds, Dec -05 degrees 16 minutes 30 seconds
Size: 7.0' x 4.0' Magnitude: 9.0' Class: Emission (complex)
North is up
West to the right
8" f5 Newtonian reflector
ST-8XME, self-guided, binned 1x1, temp -20c, camera control MaxIm DL 4.56
Lumicon Deep Sky filter, 140 minutes (14 x 10 minute subs), 03/12/2008; seeing 3.2-4.6 FWHM per CCDStack
CCDStack 1.3.2, Photoshop 7.0
Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)
|Notes:||M 43 is the small 'detached' nebulosity in the center of this image.
The core of M 42 is so bright that the *nebulosity* caused the camera to
bloom in these 10 minute subs. I was not trying to record
M 42, so just left the core (Trapezium
area) burned out. See the 14.5" version.
From the NGC / IC Project:Contemporary Visual Observation(s) for NGC 1982
NGC 1982 = M43 = Ced 55g = Orion Nebula 05 35 31.3 -05 16 02 V = 9.0; Size 20x15 13.1": large detached piece of M42, mottled outer region, very bright center. Has a large rotated "comma" shape with a dark indentation on the E side. A mag 8 star is embedded. 8": fairly large, irregular, protrudes to the NE, includes a bright star. - by Steve GottliebHistorical Research Notes / Correction for NGC 1982
NGC 1982 = M 43. For this, and many other emission or reflection nebulae with clearly identified embedded stars, we have adopted the position of the star as that for the entire nebula. This follows the precident set by the visual discovers who noticed that the nebulae are usually (though not always) brightest in the vicinity of the stars. There is a curiosity in the NGC listing for M 43. WH's first ``Very Faint'' nebula is in the vicinity, so GC and NGC suggest that it might be equivalent. This probably bothered Dreyer a bit, as he added a note to WH's observation when he edited the Complete Papers: ``III 1 is an appendage to the north of M43.'' WH's own observation seems to support this, and it is well-known, too, that he tried to not include any of Messier's nebulae or clusters in his own lists (though several did creep in, including M8, M20, and M82). - Dr. Harold G. Corwin, Jr.