Andrew Cooper
Nov 24, 2023    Waikoloa, HI (map)
20cm f/6 Newtonian, Cave Astrola @ 76x
Seeing: 6 Transparency: 6 Moon: 0%

An exquisite rich cluster filling a 15' region of sky with hundreds of 11th to 12th magnitude stars, bright and obvious, visible in the 50mm finder, rich, fully resolved, roughly circular, the 4.5 magnitude b Pup is 22' south-southeast, simply one of the best clusters in the sky

Andrew Cooper
Oct 25, 2015    Camoapa, Nicaragua (map)
15cm f/5 Newtonian, Makaʻiki @ 19x
Seeing: 7 Transparency: 6 Moon: 0%

A startingly rich star cluster, hundreds of barely resolved stars in a well defined area 15' in diameter, obvious at low power, 2° southeast of cPup

Andrew Cooper
Jan 30, 2011    Hale Pohaku, HI (map)
46cm f/4.5 Newtonian, Deep Violet @ 60x
Seeing: 6 Transparency: 6.5 Moon: 0%

Large! extremely rich cluster, fully resolved, innumerable stars in a 20' area

Andrew Cooper
Nov 17, 2009    Hale Pohaku, HI (map)
46cm f/4.5 Newtonian, Deep Violet @ 95x
Seeing: 7 Transparency: 7 Moon: 0%

A large and irregular cluster, hundreds of apparent members arranged in clumps across a >20' area, very homogeneous with a narrow range of magnitudes represented

Andrew Cooper
Mar 16, 2007    Pu'u Kuainiho (map)
12x36 Canon IS binoculars

Clear in the 12x36 binos as a very distinct soft patch of unresolved stars about ½° across

Andrew Cooper
Mar 16, 2007    Pu'u Kuainiho (map)
76mm f/6 APO

Very rich, large at over 25', a rich patch of fine stars, fully resolved, very distinct and well defined amongst the winter Milky Way

Andrew Cooper
Dec 27, 2002    Sentinel, AZ (map)
46cm f/4.5 Deep Violet

Large! not so bright, very rich! a 30' area filled with stars

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