Release 11.12 ("Hergest Ridge")
Release 11.12 ("Hergest Ridge")
| Article ID: gc427 | |
| Author | Phelps, R. L., Madore, B. F., & Pevunova, P. |
| Title | IC 1257: a long-lost globular cluster. |
| Journal | Bulletin of the Astronomical Society, Vol. 28, No. 4, p. 1363 |
| Year of publication | 1996 (on gclusters from 2013-12-19 17:34:39 ) |
| Abstract | IC 1257 is a faint, compact star cluster that was discovered more than a century ago by Spitaler (1890, AN, 125, 282). It lies at Galactic coordinates l=17 deg, b=+15 deg behind a rather heavy (but uniform) sheet of foreground reddening. Since its discovery, IC 1257 has always been listed as an open cluster, although no photometric study of it has ever been published. In September 1996, we obtained new CCD photometry of this cluster with the Palomar 5-m prime focus camera which shows that it is unquestionably a moderately low-luminosity, low-metallicity globular cluster located well beyond the Galactic center. The color-magnitude diagram shows an M13-like morphology, with an extremely blue horizontal branch and a moderately steep red-giant branch... |
| Tags | IC 1257 |
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