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Since this catalog is a continuation of the Harvard Revised Photometry Catalogue, it uses the same prefix, HR. To keep this category in order, please add objects to this category by using the markup [[Category:HR objects|####]] .
The catalog lists 9,110 objects, of which 9,095 are stars, 11 are novae or supernovae (which were "bright stars" only at the time when they were at their peak), [1] and four are non-stellar objects which are the globular clusters 47 Tucanae (designated HR 95) and NGC 2808 (HR 3671), and the open clusters NGC 2281 (HR 2496) and Messier 67 (HR ...
HR – (catalog) Hoffleit Bright Star; HR – (astrophysics terminology) Hertzsprung–Russell, a diagram that compares stars' colors to their luminosities; HRC-I – (instrumentation) High Resolution Camera, an instrument on the Chandra X-ray Observatory; HRD – (instrumentation) High Rate Detector, an instrument on the Cassini spacecraft
The Guide Star Catalog is an online catalogue of stars produced for the purpose of accurately positioning and identifying stars satisfactory for use as guide stars by the Hubble Space Telescope program. The first version of the catalogue was produced in the late 1980s by digitizing photographic plates and contained about 20 million stars, out ...
Procyon (/ ˈ p r oʊ s i. ɒ n /) [17] is the brightest star in the constellation of Canis Minor and usually the eighth-brightest star in the night sky, with an apparent visual magnitude of 0.34. [3]
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The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts ...
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