Messier Objects

A list of about 110 astronomical objects compiled by French astronomer Charles Messier at the end of the 18th century. The catalog includes objects such as nebulae, star clusters, and galaxies, and the objects are denoted by an M followed by a number from 1 to 110.

Radio Programs

Triangulum Galaxy A busy member of the Local Group Tuesday, October 6, 2015
Messier 22 “Discovering” an ancient star cluster Monday, August 24, 2015
M87 Cluster A cosmic bullet from a black hole Saturday, April 25, 2015
Galactic Companions Like looking in a galactic mirror Sunday, April 12, 2015
M15 A fading family of ancient stars Thursday, September 11, 2014
Messier Clusters Logging star clusters in Sagittarius Friday, July 25, 2014
Dumbbell Nebula A blaze of color for a dying star Saturday, July 12, 2014
Messier 3 Tracking down false comets Wednesday, May 28, 2014
Hercules Cluster A starry realm without night Tuesday, May 27, 2014
Supernova Factory A galaxy with a steady supply of fireworks Tuesday, March 25, 2014
Evening Clusters Star clusters for the charioteer Sunday, January 19, 2014
M18 A faint cluster with a bright pedigree Sunday, August 25, 2013
M4 An ancient city of stars Sunday, August 4, 2013
M101 A beautiful galactic neighbor Friday, May 31, 2013
Hercules The strongman strides across the night sky Saturday, May 18, 2013
M35 A crowded stellar neighborhood Friday, January 18, 2013
M2 A distant home for old stars Sunday, January 6, 2013
Capricornus The edge of the celestial sea Friday, October 12, 2012
M11 A flock of young stars Thursday, August 9, 2012
Steamy Sights Steamy sights in the southern sky Thursday, July 26, 2012
Galactic Nests Keeping the chicks close to the nest Sunday, July 22, 2012
M15 Debating a medium-sized black hole Saturday, October 22, 2011
M2 An ancient family of stars Saturday, September 17, 2011
M7 A bright but distant star cluster Sunday, August 28, 2011
The Big Dog A constellation with a bite Friday, March 25, 2011
Cancer A famous but faint constellation Saturday, March 12, 2011
M87 Black Hole Looking for a hidden giant Thursday, March 10, 2011
Young Black Hole Watching an infant black hole Wednesday, March 9, 2011
M46 and M47 Two prominent "families" of stars Saturday, February 26, 2011

Featured Images

Hubble Space Telescope view of globular cluster M2
Stars Galore Sunday, January 6, 2013
Hubble Space Telescope view of M104, the Sombrero Galaxy
Galactic Hat Dance Monday, July 2, 2012
The star cluster M7
Aging Family Sunday, August 28, 2011
X-ray and radio image of galaxy M87
Close to the Monster Thursday, March 10, 2011
M87 black hole
Busy Black Hole Wednesday, August 11, 2010
An ultraviolet view of the spiral galaxy M81 shows young, hot stars in blue and
Grand Galaxy Saturday, June 12, 2010


Virgo Virgo is the second-largest constellation -- so...
Cancer, the Crab Although it is one of the constellations of the...


©2015 The University of Texas McDonald Observatory