Andrew Cooper
Nov 2, 2020    Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 7 Transparency: 6 Moon: 0%

Bright, decently sized at about 5', round, dense core, just starting to resolve

Andrew Cooper
Jun 27, 2020    Waikoloa Quarry, HI (map)
8x42mm Nikon Prostaff 3S Binoculars @ 8x
Seeing: 7 Transparency: 7 Moon: 0%

A small fuzzy star with an 8th magnitude star just above it to the northwest, faint, round, not resolved, a conspicuous arc of stars leads to the cluster from Kaus Australis

Andrew Cooper
Jun 27, 2020    Waikoloa Quarry, HI (map)
28cm f/10 SCT, NexStar 11" GyPSy @ 127x
Seeing: 7 Transparency: 7 Moon: 0%

Small, bright, a dense core, fully resolved, a pretty object set in a rich galactic starfield

Andrew Cooper
Apr 3, 2011    Hale Pohaku, HI (map)
46cm f/4.5 Newtonian, Deep Violet @ 175x
Seeing: 8 Transparency: 7 Moon: 0%

Small, bright, about 5' across, well concentrated at the core, partially resolved, the Sky Commander coordinates are almost a degree off

Andrew Cooper
Jun 11, 2010    Hale Pohaku, HI (map)
46cm f/4.5 Newtonian, Deep Violet @ 262x
Seeing: 8 Transparency: 7.5 Moon: 0%

Small, bright, fully resolved, attractive globular in rich starfield, not concentrated at core

Andrew Cooper
Apr 18, 2010    Hale Pohaku, HI (map)
46cm f/4.5 Newtonian, Deep Violet @ 175x
Seeing: 6 Transparency: 7 Moon: 0%

Bright, fully resolved, nicely concentrated at the core, about 5' across

Andrew Cooper
Jun 28, 1998    Santa Rita Mts., AZ (map)
20cm f/10 SCT

Not very resolved, rather average for the globulars cataloged by Messier

Charles Messier
Aug 31, 1780    

Nebula without star, in Sagittarius, below his left arm & near the arc; near it is a star of 9th magnitude; its light is very faint, one can only see it under good weather, & the least light employed to illuminate the micrometer wires makes it disappear: its position has been determined from Epsilon Sagittarii: this nebula has been observed by M. de La Caille, & reported in his Catalogue; it resembles the nucleus of a small Comet.

― Connaissance des Temps, 1781

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

A complete list of credits and sources can be found on the about page