NGC 289 - SB(rs)bc

NGC 289

De Vaucouleurs Atlas Type: SB(rs)bc

Filter: B

Telescope: UH 2.2-m
North up , East left
Field Dimensions: 7.2 x 6.6 arcminutes

RC3 Type: SB(rs)bc
RSA Type: SBbc(rs)I-II
Surface Brightness Range Displayed: 18.5-26.0 mag per square arcsec
Absolute Blue Magnitude: -20.0
Elmegreen Spiral Arm Class: AC12

De Vaucouleurs Atlas Description:

This object is remarkably complex. The bar and inner pseudoring are fairly well-defined, although the latter feature is very open. The inner pseudoring is of the type seen in NGC 4548 , where the bar is bracketted by short spiral arcs. The arms making up the inner pseudoring branch further out, and the morphology in the inner bright zone is four-armed. Two of these arms continue to wind outward into a fainter, almost outer-ringlike region. One of these arms then continues to wind out to ever larger radii, giving the galaxy a much larger size than would be evident on short exposure images. In the bar region, broad but well-defined leading dust lanes are seen.