Video Credit: deep Sky Videos
M7, the Wishing Well, Pluto, and New Horizons
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Tag Archives: M7
Ptolemy’s Cluster
Messier 7 (aka M7 or Ptolemy’s Cluster) is an open cluster of stars in the constellation of Scorpius. The cluster is visible to the naked eye, close to the “stinger” of Scorpius.
M7 has been known since antiquity; it was first recorded by the 1st-century Greek-Roman astronomer Ptolemy, who described it as a nebula in AD 130. Italian astronomer Giovanni Batista Hodierna observed it in the mid 17th-century and counted 30 stars in it. In 1764, French astronomer Charles Messier catalogued the cluster as the seventh member in his list of comet-like objects. This image was recently taken by the 2.2-metre ESO telescope in Chile.
Image Credit: ESO
Zooming in on M7
This video opens with a view of the central parts of the Milky Way and zooms in towards the bright constellation of Scorpius (The Scorpion) to a fuzzy spot close to the tail, the bright star cluster Messier 7. The final very detailed close up image comes from the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile.
Video Credit: ESO
M7
Messier 7 or M7, sometimes known as Ptolemy’s Cluster, is an open cluster of stars in the constellation of Scorpius. The cluster is easily detectable with the naked eye, close to the “stinger” of Scorpius.
M7 has been known since antiquity; it was first recorded by the 1st-century Greek-Roman astronomer Ptolemy, who described it as a nebula in AD 130. Italian astronomer Giovanni Batista Hodierna observed it in the mid 17th-century and counted 30 stars in it. In 1764, French astronomer Charles Messier catalogued the cluster as the seventh member in his list of comet-like objects. This image was recently taken by the 2.2-metre ESO telescope in Chile.
Image Credit: ESO