TJ 23

RA:

17:45:09.8

Dec:

-32:46:17

Distance from Sun:

Distance from Galactic Center:

Apparent Diameter:

Brightness:

Radial Velocity:

Diameter:

Abs. Mag:

This object was discovered in 1980 and described as Globular Cluster Candidate (Terzan, Ju 1980). It is also listed as presumable globular cluster in Webbink (1985). It was eventually identified as a Planetary Nebula in 1990 (Ratag et.al. 1990).

References:

• M.A: Ratag, S.R. Pottasch, A.A. Zijlstra, and J. Menzies, 1990. Planetary nebulae near the Galactic center. II - The second VLA measurements. Astronomy and Astrophysics, Vol. 233, No. 1 (Jan 1990), pp. 181.189 [ADS: 1990A&A...233..181R]
• A. Terzan and K.H. Ju, 1980. A Photometric Study of the Bright Cloud B in Sagittarius - Part Three. ESO Messenger No. 20, p. 6 [ADS: 1980Msngr..20....6T]
• R.F. Webbink, 1985. Structure parameters of galactic globular clusters. In: Dynamics of star clusters; Proceedings of the Symposium, Princeton, NJ, May 29-June 1, 1984. Dordrecht, D. Reidel Publishing Co., pp. 541-577 [ADS: 1985IAUS..113..541W]