NGC/IC Project Restoration Effort

(This is a very very beta version)

NGC925

 

Basic Information


Location and Magnitude


Right Ascension: 2:27:16.8
Declination: +33:34:44
Constellation: TRI
Visual Magnitude: 10.1

Historic Information


Discoverer: Herschel W.
Year of discovery: 1784
Discovery aperture: 18.7

Observational


Summary description: cF, cL, E, vgbM, 2 st 13 np
Sub-type: SBcd

Steve's Notes

===== NGC 925 24" (1/25/14): on this observation I used 375x and focused on the HII regions in the spiral arms of NGC 925. [HK83] 120/121 is an extremely faint, very small HII knot on the west end of NGC 925, 3.2' from center. This HII complex is near the end of the southern spiral arm, though I couldn't trace the arm itself as far this knot and a mag 14 star lies 0.9' SSE. [HK83] 44 is barely detached off the east end of the central bar and appeared as a very faint 6" knot. A second fainter and even smaller knot, [HK83] 46/49, was occasionally seen ~20" WNW, right at the tip of the bar. [HK83] 42 is another faint, 6" knot along the southern arm, 1.5' SE of center. The location was pinpointed just north of the midpoint of two mag 13.5/14.5 stars oriented E-W at 1.6' separation. 17.5" (11/26/94): fairly bright, large, about 5' diameter although the halo is irregular. The core appears as a bright bar running through the center and elongated WNW-ESE with a fainter halo north and south of the bar. The bar is moderately concentrated and has a mottled texture. There is a strong impression of very faint extensions or arms that begin to hook north on the WNW end and south on the ESE ends of the bar. An extremely faint knot is just visible off the west side 3.3' from the center. This knot is an HII complex and association near the edge of a spiral arm and is catalogued as #120 in Hodge-Kennicutt's 1983 "An Atlas of H II regions in 125 galaxies". Several stars are near; a mag 10.5 star lies 3.4' S of center, two mag 12 stars are just north of the core 1.0' and 1.5' from the center and a wide pair of mag 12.5 star are 5' W. Member of the NGC 1023 Group. 8" (11/8/80): faint, fairly large, diffuse, irregular, elongated 2:1 NW-SE, even surface brightness. A mag 10 star is 3.5' S.