NGC 5139, Omega Cen

Globular Cluster NGC 5139 (Omega Cen), class VIII, in Centaurus

[NGC 5139 image, AAT]

Distance from Sun:
17.0 kly
Distance from Galactic Center:
20.9 kly
Apparent Diameter:
36.3 arc min
3.68 mag vis
Radial Velocity:
+232.1 +/- 0.1 km/s
183 ly
Abs. Mag:
-10.26 Mag vis
Discovered by Edmond Halley in 1677.

Omega Centauri has been listed as a star by Ptolemy around 130 A.D., and consequently named by Bayer around 1600. Edmond Halley recognized its non-stellar nature in 1677.

The image in this page was obtained by David Malin with the 3.9-m Anglo-Australian Telescope. This image is copyrighted and may be used for private purpose only. For any other kind of use, including internet mirroring and storing on CD-ROM, please contact the Photo Permissions Department (photo at of the Anglo Australian Observatory.

  • More information on this image by David Malin

    [MW Globulars] | [NGC] | [DSS] | [SIMBAD] | [ADS] | [GGC-DB]
    Hartmut Frommert [contact]