NGC/IC Project Restoration Effort

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NGC3148

 

Basic Information


Location and Magnitude


Right Ascension: 10:13:43.8
Declination: +50:29:49
Constellation: UMA
Visual Magnitude: 6.6

Historic Information


Discoverer: Herschel J.
Year of discovery: 1831
Discovery aperture: 18.3

Observational


Summary description: * 7 in photosphere 2' or 3' d
Sub-type: *

Corwin's Notes

===== NGC 3148 = GM UMa = HD 88512 is only a star. JH's description reads "A star 7m has a photosphere 2 or 3 arcmin diam. Sky perfectly clear; glass quite clean; windy. Another * of same mag viewed presently after has no photosphere." There is certainly no bright nebulosity that large around the star, and it is not a double or multiple star, either. Its only "peculiarity" is that it is an eclipsing variable. JH has a couple of other stars which he suspected of nebulosity, too, which show none today. These must be illusions of some sort, though difficult to account for. Perhaps they were caused by very thin, evanescent clouds or fog?