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

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Constellation

Canis Major

Field centre

RA: 06^h45^m
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

siriuscolour.jpg (530.7 kB)

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Alan Thomas

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