Release 11.12 ("Hergest Ridge")
Release 11.12 ("Hergest Ridge")
| Article ID: gc385 | |
| Author | Lee, S.-W. |
| Title | The C-M diagram of the globular cluster M55. |
| Journal | Astronomy and Astrophysics, Suppl. Ser., Vol. 29, p. 1 - 8 |
| Year of publication | 1977 (on gclusters from 2013-10-11 17:26:52 ) |
| Abstract | Two-color (BV) photographic photometry of 510 stars brighter than V [around] 15.5 within 7.5 arcmin of the center of the globular cluster M55 is presented. The generale shape of the well defined C-M diagram is characteristic of metal-poor globular clusters, and confirms the early spectroscopic observation. A clump along the giant branch appears near the horizontal branch level, and along the blue horizontal branch there appear a clump and a gap... |
| Tags | NGC 6809 |
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