Andrew Cooper
Jun 17, 2023    Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 7 Transparency: 7 Moon: 0%

Big, bright, obvious in the 40mm finder, a coarse collection of 7th to 9th magnitude stars spanning a 30' field and filling the eyepiece with brilliant stars, coarse, fully resolved, located in rich galactic starfield

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

Bright, a bit more than one field northeast of Deneb, large, coarse, resolved, a conspicuous cluster of 6-8th magnitude stars roughly triangluar in shape and 30' in diameter

Andrew Cooper
Aug 27, 2006    TIMPA, Avra Valley, AZ (map)
28cm f/10 SCT Gypsy

Large! Bright!! loose and sparse open cluster of a few dozen stars, members stars are quite obvious as they are much brighter than the general galactic background, about ½° in diameter, distribution of the member stars seems fairly random in nature

Andrew Cooper
Nov 15, 1998    Las Cienegas NCA, Sonoita, AZ (map)
20cm f/10 SCT

A surprise! a large (30') and loose cluster of bright stars across the field.

Rev. T.W. Webb
May 19, 1885    

Grand open cluster

Johann Elert Bode
Oct 27, 1774    Berlin Observatory, Germany (map)

On October 27, 1774, I found in a triangle west and east with the two stars Pi at the tail of Cygnus a small star cluster, the position of which relative to the given stars I determined with the heliometer, as shown in the 6th figure.

Charles Messier
Jan 3, 1760    

Cluster of stars near the tail of the Swan; one can see them with an ordinary telescope of 3.5 feet.

― Connaissance des Temps, 1781

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

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