Online Astronomy eText: Appendices
The Messier Catalog: Globular Clusters Link for sharing this page on Facebook
(also see Charles Messier's Catalog: Nebulae / Open Clusters / Galaxies)
Page last updated Jan 5, 2014

Note: M107 was added to the Catalog in 1947

M2 (=
NGC 7089)
Discovered (1746) by Jean-Dominique Maraldi (Recorded by Messier in 1760)
A 7th-magnitude globular cluster in Aquarius (RA 21 33 27, Dec -00 49 22)
Click on the image (below) or the NGC link (above) for more information
(Image Credit: D. Williams, N. A. Sharp, AURA, NOAO, NSF, apod010611)


M3 (=
NGC 5272)
Discovered (1764) by Charles Messier
A 6th-magnitude globular cluster in Canes Venatici (RA 13 42 11, Dec +28 22 34)
Click on the image (below) or the NGC link (above) for more information
(Image Credit: S. Kafka & K. Honeycutt (Indiana University), WIYN, NOAO, NSF)


M4 (=
NGC 6121)
Discovered (1745) by Philippe de Cheseaux (Recorded by Messier in 1764)
A 5th-magnitude globular cluster in Scorpius (RA 16 23 36, Dec -26 31 29)
Click on the image (below) or the NGC link (above) for more information
Below, an NOAO image of M4 (Image Credits: T2KA, KPNO 0.9-m Telescope, NOAO, AURA, NSF,)
NOAO image of NGC 6121, also known as M4

M5 (=
NGC 5904)
Discovered (1702) by Gottfried Kirch (Recorded by Messier in 1764)
A 6th-magnitude globular cluster in Serpens Caput (RA 15 18 34, Dec +02 05 00)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: Jim Misti, Misti Mountain Observatory; used by permission)
Misti Mountain Observatory image of NGC 5904, also known as M5

M9 (=
NGC 6333)
Discovered (1764) by Charles Messier
An 8th-magnitude globular cluster in Ophiuchus (RA 17 19 12, Dec -18 30 57)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: AURA, NSF, NOAO)


M10 (=
NGC 6254)
Discovered (1764) by Charles Messier
A 7th-magnitude globular cluster in Ophiuchus (RA 16 57 09, Dec -04 05 56)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: N.A.Sharp, Vanessa Harvey/REU program/AURA/NSF/NOAO)


M12 (=
NGC 6218)
Discovered (1764) by Charles Messier
A 6th-magnitude globular cluster in Ophiuchus (RA 16 47 15, Dec -01 56 50)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: REU Program, AURA, NSF, NOAO)


M13 (=
NGC 6205) -- The Globular Cluster in Hercules
Discovered (1714) by Edmund Halley (Recorded by Messier in 1764)
A 6th-magnitude globular cluster in Hercules (RA 16 41 42, Dec +36 27 39)
Click on the image (below) or the NGC link (above) for more images and information
(Image Credits: N.A.Sharp, REU program/AURA/NSF/NOAO)


M14 (=
NGC 6402)
Discovered (1764) by Charles Messier
An 8th-magnitude globular cluster in Ophiuchus (RA 17 37 36, Dec -03 14 43)
Click on the image (below) or the NGC link (above) for more images and information
(Image Credits: AURA, NSF, NOAO)


M15 (=
NGC 7078)
Discovered (1746) by Jean-Dominique Maraldi (Recorded by Messier in 1764)
A 6th-magnitude globular cluster in Pegasus (RA 21 29 58, Dec +12 10 03)
Click on the image (below) or the NGC link (above) for more images and information
Wikimedia Commons cutout of HST image of M15

M19 (=
NGC 6273)
Discovered (1764) by Charles Messier
A 7th-magnitude globular cluster in Ophiuchus (RA 17 02 38, Dec -26 16 03)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: Doug Williams, REU Program/AURA/NSFNOAO)


M22 (=
NGC 6656)
Discovered (1665) by Abraham Ihle (Recorded by Messier in 1764)
A 5th-magnitude globular cluster in Sagittarius (RA 18 36 24, Dec -23 54 10)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: Jean-Charles Cuillandre (CFHT), Hawaiian Starlight, CFHT, apod050627; Copyright CFHT)


M28 (=
NGC 6626)
Discovered (1764) by Charles Messier
A 7th-magnitude globular cluster in Sagittarius (RA 18 24 33, Dec -24 52 10)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: AURA, NSF, NOAO)


M30 (=
NGC 7099)
Discovered (1764) by Charles Messier
A 7th-magnitude globular cluster in Capricornus (RA 21 40 22, Dec -23 10 43)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: REU program, AURA, NSF, NOAO)


M53 (=
NGC 5024)
Discovered (1775) by Johann Bode (Recorded by Messier in 1777)
An 8th-magnitude globular cluster in Coma Berenices (RA 13 12 55, Dec +18 10 11)
Click on the image (below) or the NGC link (above) for more information
SDSS image of NGC 5024, also known as M53

M54 (=
NGC 6715)
Discovered (1778) by Charles Messier
An 8th-magnitude globular cluster in Sagittarius (RA 18 55 03, Dec -30 28 40)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: REU Program, AURA, NSF, NOAO)


M55 (=
NGC 6809)
Discovered (1751) by Nicolas Lacaille (Recorded by Messier in 1778)
A 6th-magnitude globular cluster in Sagittarius (RA 19 39 59, Dec -30 57 42)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: B.J. Mochejska, J. Kaluzny (CAMK), 1m Swope Telescope, apod000922)


M56 (=
NGC 6779)
Discovered (1779) by Charles Messier
An 8th-magnitude globular cluster in Lyra (RA 19 16 36, Dec +30 11 07)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: AURA, NSF, NOAO)


M62 (=
NGC 6266)
Discovered (1771) by Charles Messier
A 6th-magnitude globular cluster in Ophiuchus (RA 17 01 13, Dec -30 06 42)
Click on the image (below) or the NGC link (above) for more information
Below, a 24 arcmin wide view of the cluster
Wikisky image of M62

M68 (=
NGC 4590)
Discovered (1780) by Charles Messier
A 7th-magnitude globular cluster in Hydra (RA 12 39 28, Dec -26 44 32)
Click on the image (below) or the NGC link (above) for more information
Below, a 12 arcmin wide view of M68
Wikisky image of M68

M69 (=
NGC 6637)
Discovered (1780) by Charles Messier
An 8th-magnitude globular cluster in Sagittarius (RA 18 31 23, Dec -32 20 51)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: REU program, AURA, NSF, NOAO)


M70 (=
NGC 6681)
Discovered (1780) by Charles Messier
An 8th-magnitude globular cluster in Sagittarius (RA 18 43 13, Dec -32 17 29)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: REU program, AURA, NSF, NOAO)


M71 (=
NGC 6838)
Discovered (1745) by Philippe de Cheseaux
Observed (between 1772 and 1778?) and recorded (1779) by Johann Koehler
Recorded (Jun 28, 1780) by Messier as M71
An 8th-magnitude globular cluster in Sagitta (RA 19 53 46, Dec +18 46 44)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: REU program/AURA/NSF/NOAO)


M72 (=
NGC 6981)
Discovered (1780) by Pierre Méchain (Recorded by Messier in 1780)
A 9th-magnitude globular cluster in Aquarius (RA 20 53 28, Dec -12 32 11)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: NASA, ESA, HPOW, Hubble)


M75 (=
NGC 6864)
Discovered (1780) by Pierre Méchain (Recorded by Messier in 1780)
A 9th-magnitude globular cluster in Sagittarius (RA 20 06 05, Dec -21 55 15)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: WIYN, AURA, NSF, NOAO)


M79 (=
NGC 1904)
Discovered (1780) by Pierre Méchain (Recorded by Messier in 1780)
An 8th-magnitude globular cluster in Lepus (RA 05 24 11, Dec -24 31 25)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: AURA, NSF, NOAO)


M80 (=
NGC 6093)
Discovered (1781) by Charles Messier
A 7th-magnitude globular cluster in Scorpius (RA 16 17 03, Dec -22 58 28)
Click on the image (below) or the NGC link (above) for more information
(Image Credit and Copyright: Jim Misti, Misti Mountain Observatory; used by permission)
Misti Mountain Observatory image of region near NGC 6093, also known as M80

M92 (=
NGC 6341)
Discovered (1777) by Johann Bode (Recorded by Messier in 1781)
A 7th-magnitude globular cluster in Hercules (RA 17 17 07, Dec +43 08 13)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: Hillary Mathis, REU program/AURA/NSF/NOAO)


M107 (=
NGC 6171 = GCL 44)
Discovered (April, 1782) by Pierre Méchain
Added to Charles Messier's catalog as M107 by Helen Sawyer Hogg in 1947
An 8th-magnitude globular cluster (type X) in Ophiuchus (RA 16 32 31.9, Dec -13 03 11)
Click on the image (below) or the NGC link (above) for more information
(Image Credits: HST/NASA/ScSTI, from Wikimedia Commons)

Online Astronomy eText: Appendices
The Messier Catalog: Globular Clusters
(also see Charles Messier's Catalog: Nebulae / Open Clusters / Galaxies)