NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC447
Basic Information
Location and Magnitude
Right Ascension: 1:15:37.9
Declination: +33:3:59
Constellation: PSC
Visual Magnitude: 14.0
Historic Information
Discoverer: d'Arrest
Year of discovery: 1861
Discovery aperture: 11.0
Observational
Summary description: F, pL, bM, * 11 nf
Sub-type: SB0-a
Corwin's Notes
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NGC 447 = IC 1656. This is misnamed "NGC 449" in CGCG, and that has
unfortunately carried over into several other catalogues. The galaxy was
found by d'Arrest who observed it on four different nights, each time
measuring its position with a micrometer. His position is good, as is his
description, especially concerning an 11th magnitude star 9.2 seconds of time
east and 110 arcseconds north of the nebula -- the star is there, so the
identification is secure.
IC 1656 was found about 40 years later by Barnard. Since this is one of the
nebulae which he "published" in a private communication to Dreyer, we have
only the position and description in the second IC to guide us. His RA is
good, but the declination is about 1.4 arcmin north of the galaxy. His
description is similarly confused, "Neb, S * close sf, *9 sf 3 arcmin." The
"S * close sf" is indeed superposed on the southeastern edge side of the
galaxy (the GSC position is a blend of this and the galaxy), but the "* 9 sf
3 arcmin" is actually northwest by three minutes. It is the same star that
d'Arrest called 11th magnitude. Still, the are no other galaxies in the area
with quite that arrangement of stars around them, so Barnard's object is
certainly the same one that d'Arrest had seen earlier.
See NGC 451 = IC 1661 for more about Barnard's observations in the area.
Steve's Notes
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NGC 447
17.5" (9/19/87): very faint, very small, round. A mag 15 star is involved at the southeast end. In a group with NGC 449 and NGC 451. Incorrectly identified as NGC 449 in the RNGC, CGCG, UGC.