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  1. Messier 7 - Wikipedia

    Messier 7 or M7, also designated NGC 6475 and sometimes known as Ptolemy's Cluster, [4][5] is an open cluster of stars in the constellation of Scorpius. The cluster is easily detectable with …

  2. Messier 7 - Science@NASA

    Aug 25, 2024 · Visible right next to the stinger of the scorpion in the constellation Scorpius, Messier 7 is an easy naked-eye target for stargazers in southern latitudes. The second …

  3. Messier 7 (NGC 6475): Ptolemy’s Ancient Cluster Still Shines Bright

    Aug 30, 2025 · Messier 7, or Ptolemy's Cluster, is a prominent star cluster located in the Scorpius constellation, first recorded by Claudius Ptolemy in 130 AD. This open cluster, visible to the …

  4. Messier 7: Ptolemy’s Cluster - Messier Objects

    Feb 11, 2015 · Messier 7 (M7), also known as Ptolemy’s Cluster, is a bright open cluster in Scorpius constellation. The cluster lies at an approximate distance of 980 light years from …

  5. M6 and M7: Open star clusters in the Scorpion’s Tail - EarthSky

    Jul 18, 2024 · Bottom line: Messier 6 and Messier 7 are striking star clusters near the tail of Scorpius. M6 and M7 are best in dark sky conditions through binoculars.

  6. Clusters Messier 7, NGC 6444, NGC 6453 | Deep⋆Sky Corner

    From our line of sight, the star cluster M 7 appears projected in front of numerous distant Milky Way stars. The distance is about 600 light years. The central area covers about 30 …

  7. Messier 7: The Ptolemy Cluster | Astro-Observer

    Messier 7, also known as the Ptolemy Cluster or NGC 6475, is a striking open star cluster located in the constellation Scorpius. This bright and prominent cluster contains around 80 stars, with …

  8. M7 - Ptolemy's Cluster in Scorpius | Astrophotography

    Aug 6, 2025 · Messier 7 is located in the constellation Scorpius. It is a beautiful open cluster to both observe and photograph as it sits on a dusty field by the Milky Way band. Finding M7 is …

  9. From the Observacar – Messier 7 the Ptolemy open cluster

    Feb 27, 2025 · Messier 7 is an open star cluster situated approximately 980 light-years away from Earth. Open clusters, unlike globular clusters, consist of stars that are loosely bound together …

  10. Messier 7 - astropix.com

    M7 shines at magnitude 3.3 and has an apparent diameter of 75 arcminutes. It is one of the most prominent open clusters in the sky and can easily be observed with the unaided eye from a …