British Astronomical Association
Supporting amateur astronomers since 1890

BAA Images James Weightman

Observation by James Weightman: Colourful Sirius

Uploaded by

James Weightman

Observer

James Weightman

Observed

2021 Apr 15 - 20:00

Uploaded

2021 Apr 16 - 12:05

Objects

Sirius

Planetarium overlay









Constellation

Canis Major

Field centre

RA: 06h45m
Dec: -16°43'
Position angle: -16°16'

Field size

3°16' × 2°11'

Equipment
  • Canon 7D Mk II camera + 200mm lens @f/3.2; iOptron star mount
Exposure

main: 3 X 10 secs ISO 1600

Location

Cirencester, Glos UK

Target name

Sirius

Title

Colourful Sirius

About this image

Not an original idea - after photographing the star the lens was deliberately defocussed and a video was made of the various colours caused by atmospheric turbulence. Frozen frames from this are presented along side the image.

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.