British Astronomical Association
Supporting amateur astronomers since 1890

BAA Images Mike Greenhill-Hooper

Observation by Mike Greenhill-Hooper: Sunflower Galaxy

Uploaded by

Mike Greenhill-Hooper


Mike Greenhill-Hooper


2018 Apr 20 - 00:00


2021 May 17 - 14:23


The Sunflower Galaxy (M63)

Planetarium overlay


Canes Venatici

Field centre

RA: 13h15m
Dec: +42°02'
Position angle: -179°12'

Field size

0°40' × 0°30'

  • Celestron C11 on SkyWatcher NEQ6 mount; f6.3 focal reducer
  • Atik 383L Orion StarShoot autoguider (OAG); UV/IR cut-off filter

mix of 300s binned and unbinned


Miradoux, S.W. France

Target name



Sunflower Galaxy

About this image

Originally photograped in 2018, reprocessed images with new treatments (flats and bias corrected as well as darks), in Dawn (Atik's proprietary aligning and stacking software), plus final stacked images developed using Affinity Photo. Main drawback was lack of patience in gathering enough images - only about 1 hour's worth - not enough to reveal diffuse outer regions of galaxy.  Would be grateful for recommendations for new camera (CCD or CMOS) that has an improved sensitivity and light gathering power over my existing OSC camera (Atik 383L) that is now 6 years old. Thank you for any suggestions.  Thinking of moving to mono, but then see many excellent images in the gallery taken with colour cameras.

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.