NGC/IC Project Restoration Effort

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NGC730

 

Basic Information


Location and Magnitude


Right Ascension: 1:55:18.0
Declination: +5:38:9
Constellation: PSC
Visual Magnitude: 14.4

Historic Information


Discoverer: Bigourdan
Year of discovery: 1885
Discovery aperture: 12.4

Observational


Summary description: vF, very stellar
Sub-type: *

Corwin's Notes

===== NGC 730 is a star -- or perhaps two different stars. Bigourdan has observations of this on three nights. The discovery observation on 7 Nov 1885, is only an estimate: +11 seconds and -4 arcmin from BD +5 328; there is nothing at that position, though three stars in a line are south and west. On 4 Dec of the same year, he has a single micrometric measurement that falls between the two eastern stars, though slightly closer to the eastern most. Finally, on 30 Nov 1891, his two measurements point exactly at this eastern most -- and brightest -- star of the three. In any event, Bigourdan described the object on the three different nights as 1) having a "Doubtful aspect," 2) being "Strongly stellar; could be a star 13.4 accompanied by nebulosity," and 3) as "Pretty strongly stellar. Could be a small nebula or a nebulous star; however, I'm not certain that there is any nebulosity there." Since even he sounds pretty convinced that his object is stellar, I'm not about to disagree!