NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC930
![](Images/negative_NGC930-ngcicproject.jpg)
Basic Information
Location and Magnitude
Right Ascension: 2:27:56.7
Declination: +20:20:33
Constellation: ARI
Visual Magnitude: 14.5
Historic Information
Discoverer: Copeland
Year of discovery: 1872
Discovery aperture: 72.0
Observational
Summary description: eF, S, iR, vgbM, II 489 sf 1'
Sub-type: GxyP
Corwin's Notes
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NGC 930 is lost. Copeland found it just an arcminute northwest of NGC 932
with Lord Rosse's 72-inch. He saw it only one night, and made a micrometric
measurement of it with respect to the nucleus of NGC 932. Two stars that he
also measured (on three other nights as well) are just where he places them.
But there is no trace of his nebula.
There is a faint knot (or superposed companion) in the corona of N932, but it
is only about 35 arcsec northeast of the nucleus. While Copeland might have
been able to see this, there is no way to make his measurement fit. There are
no other likely galaxies nearby that he might have seen, either -- aside from
NGC 938 about 10 arcmin east-southeast which he, in fact, also saw.
So, NGC 930 is a mystery.
The modern catalogues, by the way, are wrong in adopting that number for the
galaxy that is here. Dreyer clearly meant NGC 932 to apply to WH's object.