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NGC4208

 

Basic Information


Location and Magnitude


Right Ascension: 12:15:39.2
Declination: +13:54:7
Constellation: COM
Visual Magnitude: 11.2

Historic Information


Discoverer: Herschel W.
Year of discovery: 1784
Discovery aperture: 18.7

Observational


Summary description: vF, pL, R, gbM (?=h 1144)
Sub-type: Sc

Corwin's Notes

===== NGC 4208 = NGC 4212. This one requires a coincidence of errors by both WH and JH. Though both nebulae were seen by WH in a single sweep, Dreyer has shown (in the Scientific Papers) that the objects could be identical if WH reset his telescope after fixing on a star. In his NGC note, Dreyer suggests that JH made a simple digit error in the RA of h1142 = N4208 -- it was seen only once in a different sweep than h1144 = N4212 (which has four accordant observations). This placed h1142 close enough to H II 107 that JH assumed the identity. Though remarkable, such a coincidence is almost sure to happen at least once in the crowded area of the Supergalactic equator. Since there are plausible explanations for both errors, I'm willing to accept Dreyer's identity of the "two" nebulae.

Steve's Notes

===== NGC 4208 See observing notes for NGC 4212.