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Title: Star clusters in Ophiuchus and Serpens.
Caption: The trio of large open clusters ideal for binoculars grouped in Ophiuchus and Serpens, with IC 4756 at left in Serpens, NGC 6633 in Ophiuchus to the right of IC 4756, and IC 4665 at right of frame above the bright star Beta Ophiuchi, or Cebalrai, in Ophiuchus. The pair of NGC 6633 and IC 4756 are also known as the S-O Double Cluster, for their home in Serpens and Ophiuchus. Below Cebalrai is the large asterism known as Taurus Poniatowski or the Little Bull, a group that resembles the Hyades in Taurus.
Category: Space
Credit: Album / Alan Dyer/Stocktrek Images
Image size: 6244 × 4164 px | 74.4 MB
Print size: 52.9 × 35.3 cm | 2458.3 × 1639.4 in (300 dpi)