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Old 27-04-2022, 08:00 PM
Startrek (Martin)
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Startrek is offline
 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 6,697
Quote:
Originally Posted by AdamJL View Post
Yeah that's terrific. Not an easy one to shoot. Core kept well under control.
But my favourite is looking for the "fuzzies" in the background. So many little galaxies hiding!!

Great work, Martin

Can I ask what causes the multi-colour diffraction spikes on the big star to the right?
Thanks Adam,
When using Newtonian reflectors the larger brighter stars end up with multi coloured diffraction spikes due to the different wavelengths of light reflecting through the spider vanes and secondary mirror holder at specific angles
I don’t mind them a bit adds a bit of character
One huge star that accentuates this phenomenon is Alnitak
Martin
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