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David Callejas

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January 20, 2019

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Simon Capone
Perth, Western Australia

07/18/2022
08:30 pm

Photographer's Website

Equipment Details:

Celestron C6 XLT
Rspec Star Analyser 100
ZWO ASI62MC
Skywatcher EQ35M

Post-processing Details:

The Star & thinner spectrum is as captured, and underneath I stretched out the spectrum vertically and added it in so you can see it a bit easier.

Image Details:

Antares Spectrum.
The light from the Star Antares is split using a diffraction grating filter. Antares is a red supergiant star, approx 550 light years from our Sun, and is nearing the end of its lifespan.
I chose this star as my first image with this method as it is my favorite - a ruby red jewel in the Constellation of Scorpius.

Posted

January 20, 2019

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David Callejas

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About the Author:

David Callejas, Marketing Director, helps bring EarthSky's content to the world via online ads and other products. He creates strategies that help people around the world find us and appreciate the work we do. He helps manage the EarthSky Store and bring to you the new products that you love. He's the chief liaison between EarthSky.org and the world of commerce. All that, plus he helps post content and populate our pages on Facebook, Google+ and Twitter. Go David!