NGC 150 - SB(s)b pec

NGC 150

De Vaucouleurs Atlas Type: SB(s)b pec

Filter: B

Telescope: CTIO 0.9-m
North up , East left
Field Dimensions: 4.3 x 3.2 arcminutes

RC3 Type: SB(rs)b:
RSA Type: Sbc(s) II pec
Surface Brightness Range Displayed: 17.5-25.5 mag per square arcsec
Absolute Blue Magnitude: -20.0
Elmegreen Spiral Arm Class: AC12

De Vaucouleurs Atlas Description:

This strange object appears to be an SB galaxy where the bar is highly foreshortened. The bar can be recognized partly by the leading dust lanes , which can still be detected even at the high tilt. The spiral structure is complex and very bright, and can be interpreted, on one hand as an inner pseudoring as done by de Vaucouleurs. However, this is likely to be an artifact of viewing an SB(s) galaxy down the bar axis. We favor an (s) classification for NGC 150 . The main arms drop considerably in surface brightness but can still be detected to twice the radius of the inner pattern. The Sb classification is based on the general tightness and patchiness of the spiral pattern.