Your query: NGC 6558

Parameters
Positional Parameters
cluster	NGC 6558
RA	18 10 17.6
Declination	-31 45 50
Galactic longitude	0.2
Galactic latitude	-6.03
R sun	7.4
R gc	1
X	7.4
Y	0
Z	-0.8
Photometric Parameters
E (B-V)	0.44
V HB	16.3
(m-M)	15.72
Vt	9.26
MVt	-6.46
(U-B)	0.58
(B-V)	1.11
(V-R)	0.71
(V-I)	1.46
S_RR	23.5
hbt	1
Structural Parameters
[Fe / H]	-1.44
SpT	F7
v_r	-197.2
err	1.6
v_LSR	-187.6
c	2.5
r_c	0.03
r_h	1.61
r_t	10.44
lg(tc)	5.61
lg(th)	8.96
mu_V	17.08
rho_v	5.11
Color-magnitude diagrams
author	Rich, R. M.; Ortolani, S.; Bica, E.; Barbuy, B.
title	VI Photometry of the Post-Core-Collapse Globular Cluster NGC 6558 and the Adjacent Bulge Field Population
journal	The Astronomical Journal, Volume 116, Issue 3, pp. 1295-1300 (1998)
CM diagram

DSS image
Image of the cluster from the Digital Sky Survey
Other Resources for NGC 6558

ADS "Object Search"
SEDS data

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
Rich, R. M.; Ortolani, S.; Bica, E.; Barbuy, B. VI Photometry of the Post-Core-Collapse Globular Cluster NGC 6558 and the Adjacent Bulge Field Population The Astronomical Journal, Volume 116, Issue 3, pp. 1295-1300 (1998) (NGC 6558 cmd )
*See all items (1 paper)*

Query processed at 21:30, 9th February
This page has been visited 1902 times, since Oct 25 2004

Top of the page