Release 11.12 ("Hergest Ridge")


Selected: M 22

New Search:
Parameters
Positional Parameters
clusterNGC 6656
nameM 22
RA18 36 23.94
Declination-23 54 17.1
Galactic longitude9.89
Galactic latitude-7.55
R sun3.2
R gc4.9
X3.2
Y0.6
Z-0.4
Photometric Parameters
E (B-V)0.34
V HB14.15
(m-M)13.6
Vt5.1
MVt-8.5
(U-B)0.28
(B-V)0.98
(V-R)0.68
(V-I)1.42
S_RR7.2
HBR0.91
hbt2
Structural Parameters
[Fe / H]-1.7
SpT F5
v_r-146.3
err0.2
v_LSR-136.6
c1.38
r_c1.33
r_h3.36
r_t28.97
lg(tc)8.53
lg(th)9.23
mu_V17.42
rho_v3.63
Color-magnitude diagrams
author
title
journal
CM diagram
CreditsCMD from Padova database
Description of NGC 6656

Messier 22 (also known as M22 or NGC 6656) is an elliptical globular cluster in the constellation Sagittarius near the Galactic bulge region. It is one of the brightest globulars that is visible in the night sky.

M22 was one of the first globulars to be discovered in 1665 by Abraham Ihle and it was included in Charles Messier's catalog of comet-like objects on June 5, 1764.

Source: Wikipedia | Notify inaccuracies

Image

Image of the cluster from the Digital Sky Survey

Other Resources
for NGC 6656
ADS "Object Search"
SEDS data
Web Links for this cluster
(2 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
Lee, Jae-Woo
Multiple Stellar Populations of Globular Clusters from Homogeneous Ca by Photometry. I. M22 (NGC 6656)
2015, The Astrophysical Journal Supplement Series, Volume 219, Issue 1, 36 pp.
(NGC 6656 )
Paper n. 2
Kunder, Andrea et al.
The RR Lyrae Variables and Horizontal Branch of NGC 6656 (M22)
2013, The Astronomical Journal, Volume 146, Issue 5, 15 pp.
(NGC 6656 )
Paper n. 3
Lynch, Ryan S. et al.
Six New Recycled Globular Cluster Pulsars Discovered with the Green Bank Telescope
2011, The Astrophysical Journal, Volume 734, Issue 2, article id. 89, 8 pp.
(NGC 6517 NGC 6656 )
See all items (6 papers) :: Submit a paper
Listen to the sound of this cluster (info)

Tutor(s) for this cluster: Still nobody, you could be the first!

Query processed at 02:43, 22nd July
This page has been visited 10175 times, since Oct 25 2004



Top of the page

Home | Parameters | Table 1 | Table 2 | Table 3
Search | Feedback | What's new | Links | Blog