NGC/IC Project Restoration Effort
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NGC370
Basic Information
Location and Magnitude
Right Ascension: 1:6:44.6
Declination: +32:25:45
Constellation: PSC
Visual Magnitude:
Historic Information
Discoverer: d'Arrest
Year of discovery: 1861
Discovery aperture: 11.0
Observational
Summary description: vF, * 13 s 15", dif
Sub-type: *3
Corwin's Notes
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NGC 370. Is this NGC 372 (which see)? D'Arrest's description reads
(my translation), "Faint and diffuse, nucleus not condensed, * 13mag 15 arcsec
s." There is nothing at his position (accurately transcribed into the NGC),
but just 9 seconds of time east, and about 1 arcmin north is NGC 372 (which
see), a triple star. On a night of bad seeing, I suspect that N372 might
indeed match d'Arrest's description, though the 13th magnitude star -- which
is 10.1 arcsec from the other two in the triplet -- is east-northeast, not
south.
Thus, it could well be that d'A's object is really just the western two stars
of the triplet, rather than all three.
d'A's position is also well off; other nebulae in the group that he measured
the same night (7 October 1861) are close to his positions. So, I remain
skeptical, and there are question marks on this number in the table.
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Going over this again in August 2016, I see that d'A did not include this
night (nor 12 October 1861) among his numbered nights which start at "1" on
27 October 1861. There is no obvious reason for this that I can see from his
table. Perhaps he mentions it in the introduction to his observations, though
since I do not know Latin, I am clearly not the one to scan that.
Steve's Notes
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NGC 370
See observing notes for NGC 372. Identification uncertain.