Latest Messier 7 Stories
Messier 7, also known as NGC 6475, is a brilliant cluster of about 100 stars located some 800 light-years from Earth. In this new picture from the Wide Field Imager on the MPG/ESO 2.2-meter telescope it stands out against a very rich background of hundreds of thousands of fainter stars, in the direction of the center of the Milky Way.
Ptolemy Cluster -- Known to Ptolemy 130 AD. "M7 is a large and brilliant group, easily detected with the naked eye... the cluster is seen projected on a background of numerous faint and distant Milky Way stars." (Burnham). This splendid cluster was known to Ptolemy, who mentioned it about 130 AD, who described it as the "nebula following the sting of Scorpius". The description may also include M6, but this is uncertain. M7 was observed by Hodierna before 1654 who counted 30 stars,...
- A volcanic mudflow.