NGC/IC Project Restoration Effort

(This is a very very beta version)

NGC1128

 

Basic Information


Location and Magnitude


Right Ascension: 2:57:41.5
Declination: +6:1:36
Constellation: CET
Visual Magnitude: 14.5

Historic Information


Discoverer: Swift L.
Year of discovery: 1886
Discovery aperture: 16.0

Observational


Summary description: eF, S, lE, 2 F st close p
Sub-type: E0

Corwin's Notes

===== NGC 1128 is the dumbbell galaxy in the center of Abell 400. Swift's RA is five minutes too small, but his comment about two pretty faint stars close west is accurate. Several objects found by Swift in October of 1886 have the same 5 minute problem. I wonder if the printed RA of a star that he commonly used then to calibrate his setting circles had a typographical error.

Steve's Notes

===== NGC 1128 18" (11/22/08): on initial glance the brightest galaxy in AGC 400 appeared faint, small, elongated 3:2 N-S, 25"x18". I soon realized this was an extremely close contact pair oriented N-S with two tangent knots (described in the professional literature as a "dumb-bell system") just 16" between centers in a very small common halo. Each component is no more than 15" in diameter with the southern member brighter. 17.5" (11/28/97): very faint, small, elongated 2:1 N-S, 40"x20", irregular surface brightness. On careful examination the glow resolved into a very close pair of extremely small galaxies oriented N-S with tangent halos [just 16" between centers!]. This double system is the brightest in AGC 400 with CGCG 415-040 3.5' SW. The identification of this galaxy with NGC 1128 is very uncertain as Swift's position is 5 tmin preceding.