NGC 6684 - (R')SB(r)0+

NGC 6684

De Vaucouleurs Atlas Type: (R')SB(r)0+

Filter: Ks

Telescope: NTT 3.6-m
North left , East down
Field Dimensions: 4.0 x 3.0 arcminutes

RC3 Type: (R')SB(s)0o
RSA Type: SBa(s)
Surface Brightness Range Displayed: 12.5-21.0 mag per square arcsec
Absolute Blue Magnitude: -19.1

De Vaucouleurs Atlas Description:

The inner ring is an exceptionally conspicuous feature in this late S0. The primary bar fills the ring and includes a strong secondary bar (see also Erwin 2004 and references therein). The outer disk includes a weak trace of a pseudoring. The morphology in the Ks band is similar to B for this early-type system.