NGC 3368 - (R)SAB(rs)ab

NGC 3368

De Vaucouleurs Atlas Type: (R)SAB(rs)ab

Filter: B

Telescope: WHT 4.2-m
North left , East down
Field Dimensions: 9.2 x 7.6 arcminutes

RC3 Type: SAB(rs)ab
RSA Type: Sab(s)II
Surface Brightness Range Displayed: 18.5-26.0 mag per square arcsec
Absolute Blue Magnitude: -20.4
Elmegreen Spiral Arm Class: AC 8

De Vaucouleurs Atlas Description:

NGC 3368 is a double-ringed galaxy with a weak bar that is significantly foreshortened and not easily recognized. The appearance is also complicated by dust on the near side whose visibility is enhanced by the significant tilt. Except for the dusty area, the inner ring appears to be a relatively closed feature. The outer ring is also of low contrast, and is not recognized in RC3 . Both rings include light star formation, and the general appearance is that of an Sab system. In fact, both are fairly well-defined in an H-alpha image (Hameed and Devereux 2005). Jungwiert et al. (1997) detected a secondary bar and inner disk in an H-band image (see also Erwin 2004).