NGC 2207/IC 2163 - SAB(rs)bc + SA(s)cd pec

NGC 2207/IC 2163

De Vaucouleurs Atlas Type: SAB(rs)bc + SA(s)cd pec

Filter: B

Telescope: CTIO 1.5-m
North up , East left
Field Dimensions: 4.6 x 3.4 arcminutes

RC3 Type: SAB(rs)bc pec
RSA Type: Sc(s)I.2
Surface Brightness Range Displayed: 18.0-26.0 mag per square arcsec
Absolute Blue Magnitude: -21.8
Elmegreen Spiral Arm Class: AC 5

De Vaucouleurs Atlas Description:

NGC 2207 and its companion, IC 2163 , to the east form an interacting pair. Elmegreen et al. (2000) show that the galaxies have experienced a recent grazing encounter and that NGC 2207 is the nearer of the pair. IC 2163 is an example of an ``ocular" galaxy (book section 2.17.2), a type of interaction-induced morphology that results from a specific encounter geometry and also at a particular phase of the interaction. Morphologically, NGC 2207 is a relatively normal Sbc spiral with a weak bar defined mainly by faint ansae on an inner pseudoring . The feature is more prominent in a 2MASS image (Jarrett et al. 2003). Interestingly, the central bulge area of NGC 2207 shows a small nuclear lens , a feature unusual to be seen for such a late Hubble type.