NGC 4995 - SAB(rs)b

NGC 4995

De Vaucouleurs Atlas Type: SAB(rs)b

Filter: B

Telescope: Perkins 1.8-m
North up , East left
Field Dimensions: 2.5 x 1.9 arcminutes

RC3 Type: SAB(rs)b
RSA Type: Sbc(s)II
Surface Brightness Range Displayed: 18.0-26.0 mag per square arcsec
Absolute Blue Magnitude: -20.6
Elmegreen Spiral Arm Class: AC 6

De Vaucouleurs Atlas Description:

This small spiral has only a weak trace of a bar; its reality is uncertain in blue light. The inner pseudoring , on the other hand, is well defined and is made of two strong spiral arms. The general tightness and patchiness of the arms, as well as the strength of the bulge, are the basis for the Sb classification.