NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC702
![](Images/negative_NGC702-ngcicproject.jpg)
Basic Information
Location and Magnitude
Right Ascension: 1:51:19.2
Declination: -4:3:20
Constellation: CET
Visual Magnitude: 13.1
Historic Information
Discoverer: Herschel W.
Year of discovery: 1784
Discovery aperture: 18.7
Observational
Summary description: eF, vlE 0°, * 13 s 90"
Sub-type: SBbc/P
Corwin's Notes
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NGC 702 = Arp 75. When I looked at this in 1996, I interpreted it as a triple
interacting object. It still, in fact, looks like a triple on the blue-
sensitive plates. However, on red plates, the faintest of the three objects
looks like a distorted arm of the brightest. On infrared images (e.g. 2MASS),
the third object disappears altogether while the brightest object splits into
two, or has two nuclei. For the current release (October 2013), I've adopted
the interpretation of two galaxies, with the brightest being a single galaxy
with a dark lane across the nuclear region.
Steve's Notes
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NGC 702
17.5" (11/6/93): fairly faint, fairly small, elongated 3:2 NNW-SSE, small bright core, stellar nucleus. Located 10' NNW of mag 7.3 SAO 129535.
Arp classified NGC 702 (Arp 75) as a spiral with "small high surface-brightness companion on arms", though this appears to be a bright emission region. The core of this galaxy, though, may contain two close nuclei so NGC 702 might be a post-collisional system.