NGC 4192 - (R1')SAB(rs)ab

NGC 4192

De Vaucouleurs Atlas Type: (R1')SAB(rs)ab

Filter: B

Telescope: KPNO 0.9-m; OHP 1.2-m
North left , East down
Field Dimensions: 8.1 x 6.1 arcminutes

RC3 Type: SAB(s)ab
RSA Type: Sb: II
Surface Brightness Range Displayed: 18.0-26.0 mag per square arcsec
Absolute Blue Magnitude: -21.1

De Vaucouleurs Atlas Description:

There is undoubtedly a bar in this galaxy, but the high inclination makes it difficult to recognize. The Sab classification is due to the general smoothness of the outer arms, and the general patchiness of the inner arms. We suspect the galaxy is similar to NGC 3504 . Even at the high inclination of the galaxy, we can tell the outer arms form an (R1' ) outer pseudoring . From the location of the dimpling , we judge that the bar is being viewed broadside-on and its appearance is being limited by dust. The inner spiral structure could define an inner pseudoring , but it would be no stronger than that seen in NGC 3504 .