Andrew Cooper
Jun 17, 2020    Waikoloa, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 127x

Bright, moderately elongated north-south, brighter to the center with a stellar core

Andrew Cooper
Mar 14, 2010    Hale Pohaku, HI (map)
15cm f/5 Newtonian, Primero @ 55x

Small, bright, no structure noted, M89 is visible 40' south, M91 is 1½° north

Andrew Cooper
Apr 18, 1999    Organ Pipe National Monument, AZ (map)
20cm f/10 SCT

Noticeably elongated on P.A. 30, core brighter

Charles Messier
Mar 18, 1781    

Nebula without star, in Virgo: its light is as faint as the preceding, No. 89 [M89]."
- Connaissance des Temps, 1781

Drawings, descriptions and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

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.

NGC & IC object notes from Harold Corwin licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. Additional supplementary material for NGC and IC catalog objects from Courtney Seligman with non-commercial use allowed, found at https://cseligman.com