British Astronomical Association
Supporting amateur astronomers since 1890

BAA Images Alan Thomas

Observation by Alan Thomas: M52 Open Cluster in Cassiopeia

Uploaded by

Alan Thomas

Observer

Alan Thomas

Observed

2021 Sep 19 - 21:03

Uploaded

2021 Sep 22 - 10:09

Objects

M52

Equipment
  • Unistellar eQuinox
Exposure

6min

Location

Norbreck Observatory, Warrington, Cheshire, UK.

Target name

M52 Open Cluster in Cassiopeia

Title

M52 Open Cluster in Cassiopeia

About this image

Messier described M52 as: "Cluster of very small [faint] stars, mingled with nebulosity, which can be seen only with an achromatic telescope. It was when he observed the Comet which appeared in this year that M. Messier saw this cluster, which was close to the comet on the 7th of September 1774; it is below the star d Cassiopeiae: that star was used to determine [the position of] both the cluster of stars & the comet."

Distance estimated as 3-7,000ly. Age c.35 million years.

Files associated with this observation
Like this image
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.