Andrew Cooper
Mar 14, 2010    Hale Pohaku, HI (map)
15cm f/5 Newtonian, Primero @ 55x
Seeing: 7 Transparency: 6.5 Moon: 0%

Small, bright, 5' across, no structure noted, an obvious object when sweeping at low power, M89 visible 50' north, M59 visible 1° east

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

Dimmer than M60, core much less intense, no other structure

Rev. T.W. Webb
May 19, 1885    Hardwick, Herefordshire, England (map)

Double [NGC4647 and NGC4649]; p extremely faint [NGC4647]. Not seen 3-7/10in. In large field with M59 np, and H. II 70 sp [NGC4638], like a hazy star.

― Celestial Objects for Common Telescopes, T. W. Webb, 1917

Charles Messier
Apr 15, 1779    

Nebula in Virgo & in the neighborhood of the preceding [M58], on the parallel of epsilon [Virginis], which has served for its determination: it is of the same light as the above, equally faint. M. Messier reported it on the Chart of the Comet of 1779.

― Connaissance des Temps, 1781