British Astronomical Association
Supporting amateur astronomers since 1890

Secondary menu

Main menu

BAA Community Member Pages Kevin Gurney
Image search

M13

Image

Expand image

About this observation
Observer
Kevin G.
Time of observation
30/08/2016 - 20:08
Object
M13
Observing location
Sheffield
Equipment
Celestron 8SE
Atik 460EX mono
Skywatcher AZ-EQ6-GT
OAG with AVS MkIV video cam
ASA 0.77 reducer corrector
Exposure
Lum (IDAS LPS-D1) 5 x 300s; Blue 4 x 300s; Red 5 x 300s: all bin 1x1 at -12C
Like This Image
Share

Globular clusters present different challenges than nebulae. The core mustn't be too burnt out, while there should be a halo of fainter stars. I have compromised here... In addition, imaging over multiple nights (as here) is difficult; its hard to plate solve and reacquire the precise target coordinates from the previous session (maybe I'm missing a trick?). The star colours are probably not quite right here too... Still working on a good calibration method.

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.