Release 11.12 ("Hergest Ridge")


Selected: NGC 6626

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Parameters
Positional Parameters
clusterNGC 6626
nameM 28
RA18 24 32.81
Declination-24 52 11.2
Galactic longitude7.8
Galactic latitude-5.58
R sun5.5
R gc2.7
X5.4
Y0.7
Z-0.5
Photometric Parameters
E (B-V)0.4
V HB15.55
(m-M)14.95
Vt6.79
MVt-8.16
(U-B)0.46
(B-V)1.08
(V-R)0.69
(V-I)1.41
S_RR5.4
HBR0.9
hbt2
Structural Parameters
[Fe / H]-1.32
SpT F8
v_r17
err1
v_LSR26.6
c1.67
r_c0.24
r_h1.97
r_t11.27
lg(tc)7.62
lg(th)9.17
mu_V15.77
rho_v4.86
Color-magnitude diagrams
authorTesta, Vincenzo; Corsi, Carlo E.; Andreuzzi, Gloria; Iannicola, Giacinto;
Marconi, Gianni; Piersimoni, Anna Marina; Buonanno Roberto
titleHorizontal-Branch Morphology and Dense Environments:
Hubble Space Telescope Observations of Globular Clusters NGC 2298, 5897, 6535, and 6626
journalThe Astronomical Journal, Volume 121, Issue 2, pp. 916-934
CM diagram

Description of NGC 6626

Messier 28 (also known as M28 or NGC 6626) is a globular cluster in the constellation Sagittarius. It was discovered by Charles Messier in 1764.

M28 is at a distance of about 18,000 to 19,000 light-years away from Earth. 18 RR Lyrae type variable stars have been observed in this cluster. In 1986, M28 became the first globular cluster where a millisecond pulsar was discovered (by the Lovell Telescope at Jodrell Bank Observatory).

Source: Wikipedia | Notify inaccuracies

Image

Image of the cluster from the Digital Sky Survey

Other Resources
for NGC 6626
ADS "Object Search"
SEDS data
Web Links for this cluster
(1 link in the database at the moment)
Users comments for this cluster
(0 comments in the database at the moment)
Selected biblio
Paper n. 1
Chun, Sang-Hyun et al.
A Feature of Stellar Density Distribution within the Tidal Radius of Globular Cluster NGC 6626 (M28) in the Galactic Bulge
2012, The Astronomical Journal, Volume 144, Issue 1, article id. 26, 12 pp.
(NGC 6626 )
Paper n. 2
Testa, Vincenzo; Corsi, Carlo E.; Andreuzzi, Gloria; Iannicola, Giacinto;
Marconi, Gianni; Piersimoni, Anna Marina; Buonanno Roberto

Horizontal-Branch Morphology and Dense Environments:
Hubble Space Telescope Observations of Globular Clusters NGC 2298, 5897, 6535, and 6626

2001, The Astronomical Journal, Volume 121, Issue 2, pp. 916-934
(NGC 6626 cmd NGC 6535 )
Paper n. 3
Pryor, Carlton; McClure, Robert D.; Fletcher, J. M.; Hesser, James E.
Mass-to-light ratios for globular clusters. I - The centrally concentrated clusters NGC 6624, M28 (NGC 6626), and M70 (NGC 6681)
1989, Astronomical Journal, vol. 98, p. 596-610
(NGC 6626 NGC 6624 NGC 6681 NGC 6584 )
See all items (4 papers) :: Submit a paper
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