Globular Cluster Terzan 12,
Discovered by Terzan in 1971.
- Distance from Sun:
- 15.6 kly
- Distance from Galactic Center:
- 11.1 kly
- Apparent Diameter:
- 3.1 arc min
- 15.63 mag vis
- Radial Velocity:
- +94.1 +/- 1.5 km/s
- Abs. Mag:
- -4.14 Mag vis
This globular is sometimes listed as Terzan 11 (e.g., in
Barbara Wilson's webpage), as the original Terzan 11 turned out to be
identical to Terzan 5. However, as W.E. Harris pointed out in his
notes to the 1996 edition of his Catalog of Parameters for Milky Way
Globular Clusters (and already in his earlier, 1994 version), it is just
this ambiguity which might cause confusion.
Unfortunately, the designation "Terzan 12" had been wrongly applied to a
totally innocent and different cluster, NGC 6256.
Therefore, the original designation Terzan 12 should be kept for this
- Agop Terzan, 1971.
Quatre nouveaux amas stellaires dans la direction de la region
centrale de la Galaxie (Four new star clusters [Terzan 9-12] in the direction
of the central region of the Galaxy).
Astronomy and Astrophysics, Vol. 12, pp. 477-481
[MW Globulars] |