Open cluster M21 in Sagittarius
author: V.Toporenko/DSS/Novapix
reference: a-aou65-31002
Image Size 300 DPI: 16 * 20 cm
Keywords for this photo:
ASTRONOMY - DSS - M21 - MOUNT PALOMAR - NGC 6531 - OPEN CLUSTER - PALOMAR - SAGITTARIUS - STAR - STAR CLUSTER -
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