This week’s small-telescope target is the Black Swallowtail Butterfly Cluster in northern Ophiuchus. This open cluster also goes by the designation IC 4665. It’s OK if you’ve never observed (or even ...
This week’s small-telescope target is open cluster NGC 7788 in the constellation Cassiopeia the Queen. This magnitude 9.4 object is the most northwestern of a line of three open clusters. To find this ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results