Andrew Cooper
Jul 17, 2023    Oregon Star Party, Ochoco Mts, OR (map)
25cm f/4.5 Newtonian, Holoholo @ 127x
Seeing: 7 Transparency: 7 Moon: 0%

A rich cluster in a very rich galactic starfield, bright and obvious, 5' diameter, partially resolved, concentrated without a brighter core, the entire scene is quite lovely with the globular and the rich starfield, the bright 6th magnitude 9 Sge visible 20' west-southwest

Andrew Cooper
Jun 20, 2023    Waikoloa, HI (map)
15cm f/5 Newtonian, Primero @ 92x
Seeing: 6 Transparency: 7 Moon: 0%

Small, bright and obvious, round, 5' diameter, not resolved, simply a round patch of haze with a modestly brighter center, in rich galactic starfield

Andrew Cooper
Jun 24, 2020    Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 61x
Seeing: 7 Transparency: 6 Moon: 0%

A modest cluster in a rich galactic starfield, partially resolved, a moderately dense core, the extents lost on the rich background field

Andrew Cooper
Aug 18, 2017    Oregon Star Party, OR (map)
14.5" f/4.5 Starmaster @ 61x
Seeing: 7 Transparency: 7 Moon: 0%

A bright ball of stars between γ and δ Sag, 10' in diamter, resolved, not much of a core

Andrew Cooper
Aug 8, 2013    Indian Springs, Oregon Star Party (map)
Regalo de Estrella 6" f/5.4 @ 59x
Seeing: 7 Transparency: 6 Moon: 0%

A modest cluster just beginning to resolve, a 5' patch of stars with no particular core, appearing more as a rich open cluster

Andrew Cooper
Oct 27, 2006    Waimea, HI (map)
12x36 Canon Image Stabilized Binoculars

Small, quite dim, round, not resolved, easily located in the center of Sagitta, but fairly difficult to see, better with averted vision

Andrew Cooper
Jun 17, 1998    Yavapai Point, Grand Canyon National Park, AZ (map)
20cm f/10 SCT

Rather loose for a globular, stars resolved

Rev. T.W. Webb
May 19, 1885    Hardwick, Herefordshire, England (map)
94mm f/18 Tully Achromat

Large and dim, hazy to low powers with 3-1/10in., yielding a cloud of faint stars (h. 11-16 mg.) to higher magnifiers. Rather more than 1° sp γ. About 1° sp is a beautiful low-power field, containing pair, and triple group, all about 8 or 9 mg.

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

Charles Messier
Oct 4, 1780    

Nebula discovered by M. Méchain on June 28, 1780, between the stars Gamma and Delta Sagittae. On October 4 following, M. Messier looked for it: its light is very faint & it contains no star; the least light makes it disappear. It is situated about 4 degrees below that which M. Messier discovered in Vulpecula. See No. 27. [M27] He reported it on the Chart of the Comet of 1779.

― Connaissance des Temps, 1781