NGC4321 - M100
DSS image of NGC4321
Digitized Sky Survey image of NGC4321, 30' x 30' with north at top and west to the right

DSS image of NGC4321
Overlaid DSS image of NGC4321, 30' x 30' with north at top and west to the right

Type  Galaxy
Magnitude  9.4
Size  7.5' x 6.9' @ 30°
RA (2000)  12h 22' 55.0"
Dec (2000)  15° 49' 21" N
Constellation  Coma Berenices
Description  pF, vL, R, vg, psbMrN, spiral-Rosse

Observing Notes

Andrew Cooper
16 Apr 1999 Organ Pipe Cactus National Monument, AZ (map)
20cm f/10 SCT

Large and round with a sharp, brighter nucleus, otherwise fairly dim

Charles Messier
13 Apr 1781

Nebula without star, of the same light as the preceding [M99], situated in the ear of Virgo. Seen by M. Méchain on March 15, 1781. These three nebulæ, nos. 98, 99 & 100, are very difficult to recognize, because of the faintness of their light: one can observe them only in good weather, & near their passage of the Meridian."
Other Data Sources for NGC4321
Nearby objects for NGC4321
Acknowledgements and Credits...

Drawings, descriptions and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission. Use for non-profit and educational reasons is generally given on request.

Positional and some physical information is from the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.

Additional object data from the SIMBAD database, operated at CDS, Strasbourg, France.

The Digitized Sky Survey was produced at the Space Telescope Science Institute under U.S. Government grant NAG W-2166. The images of these surveys are based on photographic data obtained using the Oschin Schmidt Telescope on Palomar Mountain and the UK Schmidt Telescope.

Dark nebulae data from E.E. Barnard, A Photographic Atlas of Selected Regions of the Milky Way. Ed. Edwin B. Frost and Mary R. Calvert. Carnegie Institution of Washington, 1927

Object descriptions of Rev. Webb from Celestial Objects for Common Telescopes sixth edition, Rev. T.W. Webb, 1917, edited by Rev T.E.Espin.