messier.seds.org
Messier Index
http://messier.seds.org/data3.html
You can also view the Messier objects by constellation: long form. Or by object type. Supernova remnant in Taurus. Globular cluster in Aquarius. Globular cluster in Canes Venatici. Globular cluster in Scorpius. Globular cluster in Serpens Caput. Open cluster in Scorpius. Open cluster in Scorpius. Starforming nebula in Sagittarius. Globular cluster in Ophiuchus. Globular cluster in Ophiuchus. The Wild Duck Cluster. Open cluster in Scutum. Globular cluster in Ophiuchus. Great Hercules Globular Cluster.
messier.seds.org
Messier Object 1
http://messier.seds.org/m/m001.html
05 : 34.5 (h:m). 22 : 01 (deg:m). Discovered 1731 by British amateur astronomer John Bevis. The Crab Nebula, Messier 1 (M1, NGC 1952), is the most famous and conspicuous known supernova remnant, the expanding cloud of gas created in the explosion of a star as supernova which was observed in the year 1054 AD. It shines as a nebula of magnitude 8.4 near the southern "horn" of Taurus, the Bull. In our Milky Way Galaxy. The nebulous remnant was discovered by John Bevis. In 1731, who added it. Messier acknowl...
messier.seds.org
A.J. Crayon: Analysis of Messier Marathons, as of April 27, 2015
http://messier.seds.org/xtra/marathon/aj2015.html
Analysis of Messier Marathons,. As of April 27, 2015. This is second posting of Messier Marathon results and is an update from the last one of 2012,. With the additional 3 years of results. For reference the list of results may be found at http:/ messier.seds.org/xtra/marathon/res tab.txt. From which all the following data has been extracted. The data provided includes a list of observer results. Following the scope size are the binocular results. Last the record book. It has only one new addition since ...
messier.seds.org
Theta1 Orionis: The Trapezium Cluster in the Orion Nebula M42
http://messier.seds.org/more/m042_trapezium.html
Theta1 Orionis: The Trapezium Cluster in the Orion Nebula M42. In the Orion Nebula M42 (NGC 1976). 05 : 35.4 (h:m). 05 : 27 (deg:m). Discovered by Galileo Galilei in 1617. The first recorded observation of a multiple star character of Theta1 Orionis, the bright stellar object in the Orion Nebula (M42). Occurred on February 4, 1617, when it was observed and recorded as triple by Galileo Galilei. Who did, however, not recognize the Orion Nebula due to unknown reasons. In 1656 ( Huygens 1659. 1949 Le prime ...
messier.seds.org
Star Clusters
http://messier.seds.org/cluster.html
Click the icon to view Star Clusters of the Messier Catalog. Globular clusters are gravitationally bound concentrations of approximately ten thousand to one million stars. They populate the halo or bulge of the Milky Way. More recent estimates yield an age of 12 to 20 billion years; the best value for observation is perhaps 14 to 16 billion (see e.g. the discussion at M92. Our galaxy has about 200 globular clusters, most in highly eccentric orbits that take them far outside the Milky Way. Most other ...
messier.seds.org
Messier Marathon 2016
http://messier.seds.org/xtra/marathon/mm2016.html
Any scheduled Messier Marathon 2016 Events! Messier Marathoners: Send me. 2016 Messier Marathon Results. On the first primary occasion, a full score of 110 Messier Objects should be possible from locations between 9 deg and 27 deg Northern Latitude with most difficult object M30 in the morning, and southern limit from M52, while on the secondary date in April, the probable invisibility of M74 will make it so unlikely. Messier Marathon Events 2016. The 2016 All Arizona Messier Marathon. Participants and g...
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Messier's Comets
http://messier.seds.org/xtra/history/m-comets.html
Messier's devotion was looking for, discovering, and observing comets. He was considerably successful in this endeavour, scoring with 13 first discoveries and 7 more independent co-discoveries. According to Gary Kronk and Messier's notes. We can add one more independent co-discovery to the 6 listed by Don Machholz, namely of the comet De La Nux 1758 (often quoted as anonymous); this was actually Messier's first comet discovery. See also his personal " Notes on My Comets. 1785 I Messier-Méchain. 1781 I M&...
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Supernova 2014dt in M61
http://messier.seds.org/more/m061_sn2014dt.html
Supernova SN 2014dt in M61. Supernova 2014dt was discovered on October 29, 2014 by Koichi Itagaki. Japan), the seventh supernova discovery in M61. Located at 33.9" east, 7.2" south of M61's nucleus, it reached a peak of about mag 13.2 (visually) on October 30, and faded to mag 15 at end of November. Its type was determined as Ia-pec. More to come soon . Supernova SN 2014dt Discovery Announce. CBAT Transient Object Followup Report for PSN J12215757 0428185. Index of Images of Supernova 2014dt in M61.
messier.seds.org
Supernova 1054 - Creation of the Crab Nebula
http://messier.seds.org/more/m001_sn.html
Supernova 1054 - Creation of the Crab Nebula. On July 4, 1054 A.D., Chinese astronomers noted a "guest star" in the constellation Taurus. Some older sources had speculated that this supernova might have been as bright as the Full Moon (or mag -12). The reason for this assumption was probably the intention to fit its 23-day visibility with older model lightcurves. Including the full-size version of our photo, which was obtained by Ron Lussier. A similar photo of this possible Supernova Pictograph. Evidenc...
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Christiaan Huygens (1629-95)
http://messier.seds.org/xtra/Bios/huygens.html
Christiaan Huygens (April 14, 1629 - June 8, 1695). And made detailed studies and sketches of this object, including the discovery of three stars of the Trapezium cluster. He visited London in 1665 and was made a member of the Royal Society. On invitation of the French King Louis XIV, he came to Paris in 1666 and became a founding member of the Academie Royale des Sciences. Royal Academy of Sciences) where he worked with G.D. Cassini. In 1684, he undertook new studies of the Orion Nebula.
