Introduction | Map | Sketch | My Own Observations | References
On this page I collect my observations of the globular star cluster M 3 in the constellation Canes Venatici.
The globular star cluster M 3 in the constellation Canes Venatici belongs, according to Stoyan, to the brightest and most worth observing globular star clusters in Messier's catalogue.
Size: 7' / 10' (Stoyan/Karkoschka)
Distance: 32,000 light years (Stoyan)
Rating: *** (Stoyan)
M 3 is located in constellation Canes Venatici, but is easiest to find from Arcturus in constellation Bootes
The sketch by Michael Vlasov (DeepSkyWatch.com) provides a rough impression of what I observed (my impression was much fainter than the sketch): Messier 3 (Globular Cluster) - Sketch by Michael Vlasov (Copyright © Michael Vlasov 2016)
Note: I only have the author's permission to link to the sketch.
I approached M 3 in Mühlhausen / Kraichgau in May 2017 with the Sky-Watcher Explorer 150PDS on the GoTo mount (later in May a trial witht Sky-Watcher Heritage 100P without GoTo):