NGC 6753 - (R)SA(r)b

NGC 6753

De Vaucouleurs Atlas Type: (R)SA(r)b

Filter: B

Telescope: CTIO 1.5-m
North left , East down
Field Dimensions: 3.0 x 2.3 arcminutes

RC3 Type: (R)SA(r)b
RSA Type: Sb(r)I
Surface Brightness Range Displayed: 18.0-25.5 mag per square arcsec
Absolute Blue Magnitude: -21.4
Elmegreen Spiral Arm Class: AC 8

De Vaucouleurs Atlas Description:

The dominant feature in NGC 6753 is a bright inner ring which lies at the rim of a fairly uniform inner disk zone. This inner disk zone is filled with H-alpha emission (Crocker, Baugus, and Buta 1996). Outside the inner ring , a broad oval zone includes complex and partially flocculent spiral structure. This zone is very much reminiscent of the broad oval seen in NGC 4736 . However, the inner ring in NGC 6753 is a much less extreme feature than that seen in NGC 4736 . Beyond the broad oval zone, a well-defined, and mostly detached outer ring is found. In spite of the detachment, the feature is still made of spiral structure.