NGC 2935 - (R2')SAB(s)b

NGC 2935

De Vaucouleurs Atlas Type: (R2')SAB(s)b

Filter: B

Telescope: CTIO 1.5-m
North left , East down
Field Dimensions: 5.7 x 3.6 arcminutes

RC3 Type: (R')SAB(s)b
RSA Type: SBb(s)I.2
Surface Brightness Range Displayed: 18.0-26.0 mag per square arcsec
Absolute Blue Magnitude: -20.6
Elmegreen Spiral Arm Class: AC 8

De Vaucouleurs Atlas Description:

NGC 2935 is a very good example of the SAB family . The apparent bar is not a conventional bar, because the face-on orientation means we are seeing its true shape. In spite of the broad oval shape, the bar has remarkably straight leading dust lanes , as straight as in some of the strongest conventional bars. These curve sharply near the ends of the oval. The outer arms break at a steep angle from near the major axis of the oval, and wind outward into a well-defined R2' outer pseudoring , one of the largest known examples. In the B-I color index map, a small blue nuclear ring is seen in the center of the oval. This color index map also shows slightly enhanced blue colors around the rim of the oval, as if a weak inner ring is present. However, the (s) classification is adopted because any inner ring is simply not prominent in blue light. The rather open character of the arms, coupled with the light patchiness, is the basis for the Sb classification.