GGCs database: globular cluster NGC 6440

Release 11.12 ("Hergest Ridge")

Selected: NGC 6440

Parameters
Positional Parameters
cluster	NGC 6440
RA	17 48 52.70
Declination	-20 21 36.9
Galactic longitude	7.73
Galactic latitude	3.8
R sun	8.5
R gc	1.3
X	8.4
Y	1.1
Z	0.6
Photometric Parameters
E (B-V)	1.07
V HB	18.7
(m-M)	17.95
Vt	9.2
MVt	-8.75
(U-B)	1.47
(B-V)	1.97
(V-R)	1.24
(V-I)	2.51
HBR	-1
hbt	7
Structural Parameters
[Fe / H]	-0.36
SpT	G4
v_r	-76.6
err	2.7
v_LSR	-65.9
c	1.62
r_c	0.14
r_h	0.48
r_t	6.31
lg(tc)	7.6
lg(th)	8.62
mu_V	17.06
rho_v	5.24
Color-magnitude diagrams
author	Ortolani, S.; Barbuy, B.; Bica, E.
title	The low galactic latitude metal-rich globular cluster NGC 6440
journal	Astron. Astrophys. Suppl. 108, 653-659 (1994)
CM diagram

Image
Image of the cluster from the Digital Sky Survey
Other Resources for NGC 6440

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
Mauro, Francesco et al. Double Horizontal Branches in NGC 6440 and NGC 6569 Unveiled by the VVV Survey 2012, The Astrophysical Journal Letters, Volume 761, Issue 2, article id. L29, 6 pp. (NGC 6440 NGC 6569 )
Paper n. 2
Ortolani, S.; Barbuy, B.; Bica, E. The low galactic latitude metal-rich globular cluster NGC 6440 1994, Astron. Astrophys. Suppl. 108, 653-659 (1994) (NGC 6440 cmd )
*See all items (2 papers) :: Submit a paper*
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Query processed at 08:40, 23rd April
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