Terry Robison
Gum 15 - Located in the constellation of Vela
This beautiful nebula is located in the constellation of Vela, about 3,000 light-years from Earth. Its rich red glowing cloud is an impressive example of an HII region formed by fierce interstellar winds flowing from the stars around and within. HII emissions remind me of neon lights, glowing off in the distance. Ridges within the nebula, folding over one another creating glowing highlights seem to reach outwards. I have always liked reflection nebula, and this nebula seems to have subtle wisps of dusty blue streamers running throughout. Scattering and reflecting blue light towards us.
Several dark dusky areas are present throughout the nebula. They always seem to add an element of depth. This object is catalogued as Gum 15. It is similar to the Trifad Nebula in appearance with the dark cavernous areas.
The bright star in the centre of the nebula is HD 74804, a double star.
Exposure Details:
Red 23 X 600
Green 18 X 600
Blue 18 X 600
Lum 66 X 600
Ha 24 X 1200
Total Exposure: 28.8 Hours
Instruments:
Telescope: 10" Ritchey-Chrétien RCOS
Camera: SBIG STL-11000 Mono
Mount: Astro-Physics AP-900
Focal Length: 2310.00 mm
Pixel size: 9.00 um
Resolution: 0.82 arcsec/pix
Thanks for looking
Gum 15 - Located in the constellation of Vela
This beautiful nebula is located in the constellation of Vela, about 3,000 light-years from Earth. Its rich red glowing cloud is an impressive example of an HII region formed by fierce interstellar winds flowing from the stars around and within. HII emissions remind me of neon lights, glowing off in the distance. Ridges within the nebula, folding over one another creating glowing highlights seem to reach outwards. I have always liked reflection nebula, and this nebula seems to have subtle wisps of dusty blue streamers running throughout. Scattering and reflecting blue light towards us.
Several dark dusky areas are present throughout the nebula. They always seem to add an element of depth. This object is catalogued as Gum 15. It is similar to the Trifad Nebula in appearance with the dark cavernous areas.
The bright star in the centre of the nebula is HD 74804, a double star.
Exposure Details:
Red 23 X 600
Green 18 X 600
Blue 18 X 600
Lum 66 X 600
Ha 24 X 1200
Total Exposure: 28.8 Hours
Instruments:
Telescope: 10" Ritchey-Chrétien RCOS
Camera: SBIG STL-11000 Mono
Mount: Astro-Physics AP-900
Focal Length: 2310.00 mm
Pixel size: 9.00 um
Resolution: 0.82 arcsec/pix
Thanks for looking