NGC 1 - SA(s)b


De Vaucouleurs Atlas Type: SA(s)b

Filter: B

Telescope: NOT 2.5-m
North up , East left
Field Dimensions: 4.0 x 3.0 arcminutes

RC3 Type: SA(s)b:
RSA Type: ------
Surface Brightness Range Displayed: 19.0-27.0 mag per square arcsec
Absolute Blue Magnitude: -20.8

De Vaucouleurs Atlas Description:

This small spiral is a very good, but somewhat asymmetric, Sb. The seeing is poor on the atlas image, and gives the impression of an (rs), but this feature is probably spurious and we adopt the (s) classification. The spiral structure of NGC 1 is complex and becomes even more asymmetric at larger radii. There is a smaller galaxy (NGC 2 ) close to the south, but this object is probably not responsible for the asymmetry because it has a radial velocity ~3,000 km/s larger than for NGC 1 .