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Parameters
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Positional Parameters
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| cluster | NGC 6273 |
| name | M 19 |
| RA | 17 02 37. |
| Declination | -26 16 05 |
| Galactic longitude | 356.87 |
| Galactic latitude | 9.38 |
| R sun | 8.6 |
| R gc | 1.6 |
| X | 8.5 |
| Y | -0.5 |
| Z | 1.4 |
| Photometric Parameters | | E (B-V) | 0.41 |
| V HB | 16.5 |
| (m-M) | 15.95 |
| Vt | 6.77 |
| MVt | -9.08 |
| (U-B) | 0.35 |
| (B-V) | 1.03 |
| (V-R) | 0.66 |
| (V-I) | 1.35 |
| S_RR | 0.2 |
| hbt | 0 |
| Structural Parameters | | [Fe / H] | -1.68 |
| SpT | F7 |
| v_r | 135 |
| err | 4 |
| v_LSR | 145.6 |
| c | 1.53 |
| r_c | 0.43 |
| r_h | 1.25 |
| r_t | 14.5 |
| lg(tc) | 8.5 |
| lg(th) | 9.35 |
| mu_V | 16.82 |
| rho_v | 3.96 |
| Color-magnitude diagrams |
| author | Piotto, G.; Zoccali, M.; King, I. R.; Djorgovski, S. G.; Sosin, C.; Rich, R. M.; Meylan, G. | | title | HUBBLE SPACE TELESCOPE Observations of Galactic Globular Cluster Cores. II. NGC 6273 and the Problem of Horizontal-Branch Gaps |
| journal | The Astronomical Journal, Volume 118, Issue 4, pp. 1727-1737 (1999) |
| CM diagram |  |
| Credits | CMD from Padova database |
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| Description of NGC 6273 |
Messier 19 (also known as M19 or NGC 6273) is a globular cluster in the constellation Ophiuchus. It was discovered by Charles Messier in 1764 and added to his catalog of comet-like objects that same year.
M19 is the most oblate known globular cluster. It is at a distance of about 28,000 light-years from the Solar System, and quite near to the Galactic Center, only about 5,200 light-years away.
Source: Wikipedia | Notify inaccuracies |
| DSS image |
Image of the cluster from the Digital Sky Survey |
Other Resources
for
NGC 6273 |
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ADS "Object Search"
| | SEDS data |  Google Sky |
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| Web Links for this cluster
(0 links in the database at the moment) | Users comments for this cluster
(0 comments in the database at the moment) | Selected biblio  | | Paper n. 1 |
Piotto, G.; Zoccali, M.; King, I. R.; Djorgovski, S. G.; Sosin, C.; Rich, R. M.; Meylan, G.
HUBBLE SPACE TELESCOPE Observations of Galactic Globular Cluster Cores. II. NGC 6273 and the Problem of Horizontal-Branch Gaps
The Astronomical Journal, Volume 118, Issue 4, pp. 1727-1737 (1999)
(NGC 6273 cmd ) | | See all items
(1 paper) |
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