Introduction | Map | Sketch | My Own Observations | References
On this page I collect my observations of the open star cluster IC 4665 in the constellation Ophiuchus.
The open star cluster IC 4665 in the constellation Ophiuchus can, according to Stoyan, already be seen with the naked eye as a faint glow.
Size: 70' (Stoyan)
Distance: 1,200 light years (Stoyan)
Rating: *** (Stoyan)
IC 4665 in the constellation Ophiuchus (top left) - NGC 6633 is left of it
The sketch by Michael Vlasov (DeepSkyWatch.com) provides a rough impression of what I might have observed in Summer/Autumn 2016: Sketch of IC 4665 by Michael Vlasov (Copyright © Michael Vlasov 2016)
Note: I only have the author's permission to link to the sketch.