Type | Open Cluster |
---|---|
Magnitude | 4.2 |
Size | 60.7' |
Right Ascension | 17h 46' (2000) |
Declination | 5° 36' N |
Constellation | Ophiuchus |
Description | vvL sparse group, about 20 * mags 7.... |
Classification | III 2 p |
Andrew Cooper
May 27, 2006 Gila, NM (map)
46cm f/4.5 Deep Violet
Bright! Very large!, fills the 1° field at 60x, coarse and poor in stars, about a dozen bright stars in a clear cluster
Harold Corwin
IC 4665 was actually found by de Cheseaux in the 1740s, and only rediscovered by Solon Bailey on Harvard patrol camera plates two and a half centuries later. Also see IC 4651.― IC Notes by Harold Corwin
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