British Astronomical Association
Supporting amateur astronomers since 1890

Secondary menu

Main menu

BAA Community

M25 Photometry

Image

Expand image

About this observation
Observer
Nick White
Time of observation
01/06/2020 - 16:19
Object
M25
Tags

Long story short, a freebee on a small robotic telescope offered up an unplanned opportunity to do some CCD photometry of the open cluster M25 (my first ever attempt). Here's a plot of V versus B-V, raw data, showing the main sequence and the variable U Sgr which has moved off the main sequence within the cluster.  It all looks plausible enough but keep in mind I'm a visual observer rather than a CCD bod...

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.