Release 11.12 ("Hergest Ridge")


Selected: NGC 4590

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Parameters
Positional Parameters
clusterNGC 4590
nameM 68
RA12 39 27.98
Declination-26 44 38.6
Galactic longitude299.63
Galactic latitude36.05
R sun10.3
R gc10.2
X4.1
Y-7.2
Z6
Photometric Parameters
E (B-V)0.05
V HB15.68
(m-M)15.21
Vt7.84
MVt-7.37
(U-B)0.04
(B-V)0.63
(V-R)0.46
(V-I)0.94
S_RR48.3
HBR0.17
hbt3
Structural Parameters
[Fe / H]-2.23
SpTF2/3
v_r-94.7
err0.2
v_LSR-96.8
c1.41
r_c0.58
r_h1.51
r_t30.34
lg(tc)8.45
lg(th)9.27
mu_V18.81
rho_v2.57
Color-magnitude diagrams
authorWalker, Alistair R.
titleBVI CCD photometry of galactic globular clusters. 2: M68
journalThe Astronomical Journal, vol. 108, no. 2, p. 555-584
CM diagram
Description of NGC 4590

Messier 68 (also known as M68 or NGC 4590) is a globular cluster in the Hydra constellation.

It was discovered by Charles Messier in 1780. M68 is at a distance of about 33,000 light-years away from Earth.

Source: Wikipedia | Notify inaccuracies

Image

Image of the cluster from the Digital Sky Survey

Other Resources
for NGC 4590
ADS "Object Search"
C. Clement variables data
SEDS data
Google Sky
Web Links for this cluster
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Users comments for this cluster
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Selected biblio
Paper n. 1
Schaeuble, M. et al.
A Detailed Study of Giants and Horizontal Branch Stars in M68: Atmospheric Parameters and Chemical Abundances
2015, The Astronomical Journal, Volume 149, Issue 6, article id. 204, 17 pp.
(NGC 4590 )
Paper n. 2
Brocato, E.; Castellani, V.; Piersimoni, A.
The Age of the Globular Cluster M68
1997, Astrophysical Journal v.491, p.789
(NGC 4590 )
Paper n. 3
Walker, Alistair R.
BVI CCD photometry of galactic globular clusters. 2: M68
1994, The Astronomical Journal, vol. 108, no. 2, p. 555-584
(NGC 4590 cmd )
See all items (5 papers) :: Submit a paper
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