Your query: NGC 6642

Parameters
Positional Parameters
cluster	NGC 6642
RA	18 31 54.
Declination	-23 28 31
Galactic longitude	9.81
Galactic latitude	-6.44
R sun	8.4
R gc	1.7
X	8.3
Y	1.4
Z	-0.9
Photometric Parameters
E (B-V)	0.41
V HB	16.5
(m-M)	15.9
Vt	9.13
MVt	-6.57
(U-B)	0.57
(B-V)	1.11
(V-R)	0.72
(V-I)	1.45
S_RR	31.3
hbt	3
Structural Parameters
[Fe / H]	-1.35
SpT	F8
v_r	-57.2
err	5.4
v_LSR	-45.3
c	1.99
r_c	0.1
r_h	0.73
r_t	10.07
lg(tc)	6.94
lg(th)	8.58
mu_V	16.68
rho_v	4.72
Color-magnitude diagrams
author	Minniti, D.
title	Spectroscopy and IR photometry for giant stars in obscured globular clusters: NGC 6325, NGC 6401, NGC 6440, NGC 6517, NGC 6642, HP 1 and PAL 6.
journal	Astronomy and Astrophysics, v.303, p.468 (1995)
CM diagram
Credits	CMD: HST snapshot from Padova database

DSS image
Image of the cluster from the Digital Sky Survey
Other Resources for NGC 6642

ADS "Object Search"
SEDS data

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Selected biblio
Paper n. 1
Minniti, D. Spectroscopy and IR photometry for giant stars in obscured globular clusters: NGC 6325, NGC 6401, NGC 6440, NGC 6517, NGC 6642, HP 1 and PAL 6. Astronomy and Astrophysics, v.303, p.468 (1995) (NGC 6642 cmd )
*See all items (1 paper)*

Query processed at 21:39, 9th February
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