Parameters
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Positional Parameters
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cluster | NGC 6284 |
RA | 17 04 28.51 |
Declination | -24 45 53.5 |
Galactic longitude | 358.35 |
Galactic latitude | 9.94 |
R sun | 15.3 |
R gc | 7.5 |
X | 15 |
Y | -0.4 |
Z | 2.6 |
Photometric Parameters | E (B-V) | 0.28 |
V HB | 17.4 |
(m-M) | 16.79 |
Vt | 8.83 |
MVt | -7.96 |
(U-B) | 0.4 |
(B-V) | 0.99 |
(V-R) | 0.65 |
(V-I) | 1.31 |
S_RR | 3.9 |
hbt | 1 |
Structural Parameters | [Fe / H] | -1.26 |
SpT | F9 |
v_r | 27.5 |
err | 1.7 |
v_LSR | 36.7 |
c | 2.5 |
r_c | 0.07 |
r_h | 0.66 |
r_t | 23.08 |
lg(tc) | 7.24 |
lg(th) | 9.09 |
mu_V | 16.35 |
rho_v | 4.55 |
Color-magnitude diagrams |
author | Piotto, G.; King, I. R.; Djorgovski, S. G.; Sosin, C.; Zoccali, M.; Saviane, I.; De Angeli, F.; Riello, M.; Recio Blanco | title | HST color-magnitude diagrams of 74 galactic globular clusters in the HST F439W and F555W bands |
journal | Astronomy and Astrophysics, v.391, p.945-965 (2002) |
CM diagram |  |
Credits | CMD from Padova Database |
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Image |
Image of the cluster from the Digital Sky Survey |
Other Resources
for
NGC 6284 |
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ADS "Object Search"
| SEDS data | Google Sky | 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.; King, I. R.; Djorgovski, S. G.; Sosin, C.; Zoccali, M.; Saviane, I.; De Angeli, F.; Riello, M.; Recio Blanco HST color-magnitude diagrams of 74 galactic globular clusters in the HST F439W and F555W bands 2002, Astronomy and Astrophysics, v.391, p.945-965 (2002) (NGC 6284 cmd ) | See all items
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