Open Cluster NGC 2158,
Discovered by William Herschel on November 16, 1784.
- 06 : 07.5
- +24 : 06
- Distance from Sun:
- Distance from Galactic Center:
- Apparent Diameter:
- 5. arc min
- 8.6 mag
- Radial Velocity:
- Abs. Mag:
This wellknown open cluster, situated very close to famous
M35 (NGC 2168),
was considered as a globular by Rosino (1954),
see also Sawyer Hogg (1959). Despite this, its
nature as an old Galactic open cluster is established with certainty;
its age has been estimated at about 1.05 billion years.
The image in this page has been obtained with the Burell-Schmidt Telescope
of Kitt Peak National Observatory near Tucson, Arizona. It has been cropped
larger image of NGC 2158 together with its more prominent neighbor M35.
More information on this image (N.A. Sharp, NOAO)
NGC 2158 had been discovered by William Herschel and cataloged as H VI.17.
- Rosino, 1954.
Contr. Padova in Asagio No. 52.
- Helen B. Sawyer Hogg, 1959.
In: S. Flügge (ed.),
Handbuch der Physik [Encyclopedia of Physics], Vol. LIII (53):
Astrophysik IV: Sternsysteme [Astrophysics IV: Stellar Systems],
Here: Appendix B, Catalogue of globular clusters, p. 204-206.
[MW Globulars] |