Community Gallery

Posted by

David Callejas

and

January 20, 2019

← Go back

Stéphane Picard
Quispamsis, New Brunswick, Canada

03/12/2023
09:00 pm

Photographer's Website

Equipment Details:

Canon T1i with 300 mm lens. F5.6 ISO 3200 piggybacked on Celestron Nexstar 6SE for tracking. 300 frames at 3 seconds each. Stacked with keeping 95% best frames.

Post-processing Details:

Stacked in Deep Sky Stacker with 30 darks and 30 flats. Image processing in Photoshop and Lightroom.

Image Details:

Messier 48 near the Hydra constellation and to the left of the star Sirius. It's an open cluster with about 80 stars visible easily to binoculars or small telescopes. More than 50 stars are magnitude 13 or brighter. It's about 1,500 LY away and approximately 24 LY across. Estimated at 300 million years old which is young in stellar terms which is why there are many blue young stars.

Posted

January 20, 2019

in

David Callejas

View Articles

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!