NGC/IC Project Restoration Effort

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NGC2798

 

Basic Information


Location and Magnitude


Right Ascension: 9:17:22.9
Declination: +42:0:0
Constellation: LYN
Visual Magnitude: 12.3

Historic Information


Discoverer: Herschel W.
Year of discovery: 1788
Discovery aperture: 18.7

Observational


Summary description: pB, S, stellar
Sub-type: SBa/P

Steve's Notes

===== NGC 2798 48" (4/6/13): very bright, large, elongated 2:1 NNW-SSE, 2.0'x1.0'. Sharply concentrated with a very bright, large core increasing to a small, intense nucleus. A very large spiral arm extends to the NNW from the core and curves back sharply at the end counterclockwise to the SSE, fading rapidly to a very low surface brightness and dimmng out before reaching the core. The SSE extension has an extremely low surface brightness and no arm structure was visible. Forms an interacting pair with NGC 2799 1.5' ESE. 24" (3/9/13): fairly bright, fairly large, elongated 5:2 NW-SE, 1.7'x0.7', fairly sharply concentrated with a very bright core that increases to a small, intense nucleus. The extension (spiral arm) to the northwest is brighter. Forms a striking double system (Arp 283) with NGC 2799 1.5' ESE. UGC 4904 lies 5' S and appears as a fairly faint glow, slightly elongated NW-SE, 25"x20", weak concentration. The trio forms KTG 22. 17.5" (4/6/91): fairly faint, small, slightly elongated, very small bright core, stellar nucleus. A mag 14 star is 1.6' NNE of center. Forms a double system (interacting) with NGC 2799 1.5' ESE.