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Image of the day 04/11/2019

Getting plate-solving status, please wait...
Gum Nebula, 


            John Gleason

Gum Nebula

Technical card

Imaging telescope or lens:Takahashi FSQ Fluorite

Imaging camera:FLI PL16803

Mount:Paramount ME

Software:MaximDL 5

Filter:Astrodon 5nm Halpha

Resolution: 5000x4042

Dates:April 1, 2019

Frames: 720x1800"

Integration: 360.0 hours

Avg. Moon age: 26.01 days

Avg. Moon phase: 13.39% job: 2619971

Data source: Own remote observatory

Remote source: Non-commercial independent facility


Gum Nebula, largest known emission nebula in terms of angular diameter as seen from Earth, extending about 35° in the southern constellations Puppis and Vela. A complex of diffuse, glowing gas too faint to be seen with the unaided eye, it was discovered by the Australian-born astrophysicist Colin S. Gum, who published his findings in 1955. The Gum Nebula lies roughly 1,000 light-years from Earth and is about 1,000 light-years in diameter. It may be the remnant of an ancient supernova—i.e., violently exploding star. - Encyclopedia Britannica

Starless processing (starnet++ grayscale), Hydrogen alpha 12 x 10 mosaic.



John Gleason
License: None (All rights reserved)


Gum Nebula, 


            John Gleason