NGC 4699 - SAB(rs)ab

NGC 4699

De Vaucouleurs Atlas Type: SAB(rs)ab

Filter: B

Telescope: CTIO 0.9-m
North up , East left
Field Dimensions: 4.1 x 3.0 arcminutes

RC3 Type: SAB(rs)b
RSA Type: Sab(sr) or Sa
Surface Brightness Range Displayed: 15.9-26.0 mag per square arcsec
Absolute Blue Magnitude: -21.9
Elmegreen Spiral Arm Class: AC 3

De Vaucouleurs Atlas Description:

This interesting spiral has a well-defined bar imbedded in a very extended disk with flocculent spiral features. Although the bar is well-defined, its small relative size and weakness are the reasons we classify it as SAB. Surrounding the weak bar, a diffuse and very unusual inner zone made of tightly-wrapped multiple spirals is seen. Breaking from near the ends of the bar, a tight spiral in this zone forms a weak inner pseudoring .