Release 7.11 ("Paola")

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Your query: NGC 6441

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Parameters
Positional Parameters
clusterNGC 6441
RA17 50 12.
Declination-37 03 05
Galactic longitude353.53
Galactic latitude-5.01
R sun11.2
R gc3.9
X11.5
Y-1.3
Z-1
Photometric Parameters
E (B-V)0.47
V HB17.51
(m-M)16.79
Vt7.15
MVt-9.47
(U-B)0.81
(B-V)1.27
(V-R)0.79
(V-I)1.62
S_RR0.3
hbt7
Structural Parameters
[Fe / H]-0.53
SpT G2
v_r16.4
err1.2
v_LSR24.4
c1.85
r_c0.11
r_h0.64
r_t8
lg(tc)7.72
lg(th)9.19
mu_V14.99
rho_v5.23
Color-magnitude diagrams
authorPritzl, Barton J.; Smith, Horace A.; Catelan, M?rcio; Sweigart, Allen V.
titleVariable Stars in the Unusual, Metal-Rich, Globular Cluster NGC 6441
journalThe Astronomical Journal, Volume 122, Issue 5, pp. 2600-2626 (2001)
CM diagram
CreditsCMD: HST snapshot from Padova database
DSS image

Image of the cluster from the Digital Sky Survey

Other Resources
for NGC 6441
Globular Clusters Blog
ADS "Object Search"
C. Clement variables data
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
Yoon, Suk-Jin; Joo, Seok-Joo; Ree, Chang H.; Han, Sang-Il; Kim, Do-Gyun; Lee, Young-Wook
On the Origin of Bimodal Horizontal Branches in Massive Globular Clusters: The Case of NGC 6388 and NGC 6441
2008, The Astrophysical Journal, Volume 677, Issue 2, pp. 1080-1090.
(NGC 6388 NGC 6441 )
Paper n. 2
Busso, G.; Cassisi, S.; Piotto, G.; Castellani, M.; Romaniello, M.; Catelan, M.; Djorgovski, S. G.; Recio Blanco, A.; Renzini, A.; Rich, M. R.; Sweigart, A. V.; Zoccali, M.
The Peculiar Horizontal Branch Morphology of the Galactic Globular Clusters NGC 6388 and NGC 6441: new insights from UV observations
2007, Astronomy and Astrophysics, Volume 474, Issue 1, October IV 2007, pp.105-119
(NGC 6388 NGC 6441 )
Paper n. 3
Caloi, V.; D'Antona, F.
NGC 6441: another indication of very high helium content in globular cluster stars
2007, Astronomy and Astrophysics, Volume 463, Issue 3, March I 2007, pp.949-955
(NGC 6441 )
See all items (6 papers)

Query processed at 21:41, 9th February
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