Talk:Messier 100

A fact from Messier 100 appeared on Wikipedia's Main Page in the Did you know column on 4 March 2010 (check views). The text of the entry was as follows:

Did you know... that five supernovae have been found in the Messier 100 spiral galaxy (pictured)?

A record of the entry may be seen at Wikipedia:Recent additions/2010/March.

Wikipedia

Proposed rename

Requested move: result was to move all

The following discussion is an archived debate of the proposal. Please do not modify it. Subsequent comments should be made in a new section on the talk page. No further edits should be made to this section.

The result of the debate was Move all. —Wknight94 (talk) 23:24, 12 August 2006 (UTC)[reply]

Requested move

Globular Cluster M2 to Messier 2
Globular Cluster M4 to Messier 4
Globular Cluster M9 to Messier 9
Open Cluster M21 to Messier 21
Open Cluster M26 to Messier 26
Dwarf Elliptical Galaxy M32 to Messier 32
Open Cluster M34 to Messier 34
Open Cluster M35 to Messier 35
Open Cluster M36 to Messier 36
Open Cluster M37 to Messier 37
Open Cluster M39 to Messier 39
Open Cluster M41 to Messier 41
M43 (nebula) to Messier 43
Open Cluster M46 to Messier 46
Open Cluster M47 to Messier 47
Open Cluster M48 to Messier 48
Open Cluster M50 to Messier 50
Open Cluster M52 to Messier 52
Globular Cluster M53 to Messier 53
Globular Cluster M54 to Messier 54
Globular Cluster M55 to Messier 55
Globular Cluster M56 to Messier 56
Spiral Galaxy M66 to Messier 66
Open Cluster M67 to Messier 67
Globular Cluster M68 to Messier 68
Globular Cluster M69 to Messier 69
Globular Cluster M70 to Messier 70
Globular Cluster M72 to Messier 72
M73 (star group) to Messier 73
Globular Cluster M75 to Messier 75
Lenticular Galaxy M84 to Messier 84
Elliptical Galaxy M87 to Messier 87
Spiral Galaxy M91 to Messier 91
Globular Cluster M92 to Messier 92
Open Cluster M93 to Messier 93
Spiral Galaxy M100 to Messier 100
Open Cluster M103 to Messier 103
Dwarf Elliptical Galaxy M110 to Messier 110
Most of these go against the typical Wikipedia convention to disambiguate articles by using parentheses after the article name, and discussion on WikiProject Astronomical objects has come to the view that the format should be Messier #. Many of the destination pages are redirects with more than one item in the history. Chaos syndrome 20:38, 25 July 2006 (UTC)[reply]

Discussion

Please discuss this move at Talk:Globular Cluster M2.

The above discussion is preserved as an archive of the debate. Please do not modify it. Subsequent comments should be made in a new section on this talk page. No further edits should be made to this section.

Distance

Per the SIMBAD 'distance' measurements entry, the following reference:

Crook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (2007). "Groups of Galaxies in the Two Micron All Sky Redshift Survey". The Astrophysical Journal. 655 (2): 79–813. Bibcode:2007ApJ...655..790C. doi:10.1086/510201. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)

gives a distance estimate of about 20 mpc (65 mly) rather than 55 mly.—RJH (talk) 18:10, 16 May 2010 (UTC)[reply]

Is this sentence too long to be readable?

"As usual on spiral galaxies of the Virgo Cluster, in the rest of the disk both star formation and neutral hydrogen, of which M100 is deficient compared to isolated spiral galaxies of similar Hubble type, are truncated within the galaxy's disk, which is caused by interactions with the intracluster medium of Virgo." Unmismoobjetivo (talk) 06:16, 20 May 2020 (UTC)[reply]

Yes! The comparison between M100 and Hubble type galaxies is wedged into a sentence about star formation regions. The sentence is ambiguous WRT which is deficient, star formation or neutral hydrogen. — Preceding unsigned comment added by Targa86 (talk • contribs) 19:07, 4 March 2021 (UTC)[reply]