A PAIR OF UNIVERSES
OBJECT
Image of Messier M81 and M82 galaxies. Both 11 million light years away.
The face-on M81 galaxy seems to be a quiet body with the common slow rotation. M82 is an edge-on galaxy suffering a cataclysm inside and ejecting fiercery matter to the space.
This image has been shortlisted in the Insight Investment Astronomy Photographer of the Year 2019 Competition organized by the Royal Observatory Greenwich.
The image has been shortlisted from over 4602 entries submitted from 90 countries across the globe.
TECH DATA
Optics: Ritchie-Chretien GSO RC10 f/8 scope
Camera: SBIG STL-6303
Exposure details:
M81 image is a LRGB composition of:
– Luminance: 46 images, 600 seconds each using L filter (binning 1x1) (7.7 hours)
– Red channel: 17 images, 600 seconds each using R filter (binning 2x2) (2.8 hours)
– Green channel: 18 images, 600 seconds each using G filter (binning 2x2) (3.0 hours)
– Blue channel: 17 images, 600 seconds each using B filter (binning 2x2) (2.8 hours)
M82 image is also a LRGB composition of:
– Luminance: 62 images, 600 seconds each using L filter (binning 1x1) (10.3 hours)
– Red channel: 20 images, 600 seconds each using R filter (binning 2x2) (3.3 hours)
– Green channel: 20 images, 600 seconds each using G filter (binning 2x2) (3.3 hours)
– Blue channel: 22 images, 600 seconds each using B filter (binning 2x2) (3.7 hours)