| Type | Globular Cluster |
|---|---|
| Magnitude | 6.4 |
| Size | 16.2' |
| RA (2000) | 13h 42' 11.3" |
| Dec (2000) | 28° 22' 32" N |
| Constellation | Canes Venatici |
| Description | !!, eB, vL, vsmbM, st 11.. |
Andrew Cooper
5 Jun 1998 TIMPA, Avra Valley, AZ (map)
20cm f/10 SCT
A little smaller than M5, but otherwise just as nice, well resolved, rich, compact
John Herschel
30 Mar 1827
Very beautiful; stars 11 .... 15m; fills field, making lines and irregular rays of stars, and coming up to a blaze in the middle.
Charles Messier
3 May 1764
Nebula discovered between Bootes & one of the Hunting Dogs of Hevelius, it doesn't contain any star, its center is brilliant, & its light is gradually fading away, it is round; in a beautiful sky, one can see it in a telescope of 1-foot: It is reported on the chart of the comet observed in 1779. Memoirs of the Academy of the same year. Seen again on March 29, 1781, always very beautiful."
Rev. T.W. Webb
Hardwick, Herefordshire, England (map)
94mm f/18 Tully Achromat
'A brilliant and beautiful globular congregation on not less than 1000 small stars,' Sm., blazing splendid, that is, running up into a confused brilliancy towards the centre, with many outliers. h., 11-15 mg. making lines and irregular rays. 3-7/10 in. hardly resolved it.
Drawings, descriptions and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission. Use for non-profit and educational reasons is generally given on request.
Positional and some physical information is from the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.
Additional object data from the SIMBAD database, operated at CDS, Strasbourg, France.
The Digitized Sky Survey was produced at the Space Telescope Science Institute under U.S. Government grant NAG W-2166. The images of these surveys are based on photographic data obtained using the Oschin Schmidt Telescope on Palomar Mountain and the UK Schmidt Telescope.
Dark nebulae data from E.E. Barnard, A Photographic Atlas of Selected Regions of the Milky Way. Ed. Edwin B. Frost and Mary R. Calvert. Carnegie Institution of Washington, 1927
Object descriptions of Rev. Webb from Celestial Objects for Common Telescopes sixth edition, Rev. T.W. Webb, 1917, edited by Rev T.E.Espin.