Messier Index/M100

Messier 100

Credit: w:ESO w:VLT view revealing complex spiral arm structure
Observation data (w:J2000 epoch)
Constellationw:Coma Berenices[1]
Right ascension12h 22m 54.9s[2]
Declination+15° 49′ 21″[2]
Redshift1571 ± 1 km/s[2]
Distance52.5 Mly[3]
TypeSAB(s)bc[2]
Apparent dimensions (V)7′.4 × 6′.3[2]
Apparent magnitude (V)10.1[2]
Other designations
NGC 4321

Messier 100 (also known as NGC 4321) is a w:spiral galaxy about 52.5 million w:light-years away in the w:constellation w:Coma Berenices. It was discovered by w:Pierre Méchain in w:1781. It is one of the brightest galaxies in the w:Virgo cluster. Five w:supernovae have been identified in M100: w:SN 1901B, w:SN 1914A, w:SN 1959E, w:SN 1979C and w:SN 2006X. M100 also has a w:satellite galaxy named w:NGC 4323.

Other images

  • Central region by HST. Credit: w:NASA
  • Before and after HST repair mission. Credit: NASA
  • SN 2006X in Messier 100. Credit: w:ESO

References

  1. ↑ R. W. Sinnott, editor (1988). The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer. Sky Publishing Corporation and Cambridge University Press. ISBN 0-933-34651-4. {{cite book}}: |author= has generic name (help)
  2. ↑ a b c d e f "NASA/IPAC Extragalactic Database". Results for NGC 4321. Retrieved 2006-08-31.
  3. ↑ "Pattern Speeds BIMA-SONG Galaxies with Molecule-Dominated ISMs Using the Tremaine-Weinberg Method". (Ferrarese et al. 1996). Retrieved 2006-08-31.
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