Superbubble in the LMC - Henize 70
Henize 70 (N70) is a “superbubble” nebula (300 ly) located in the Large Magellanic Cloud (LMC). Hints that the shape of Henize 70 was due to the shock waves of an old supernova explosion (yet to be confirmed). Its shape was also sculpted by a small group of very hot O and B stars located at the center.
Ha emission is strong, consistent with its potential supernova origin. OIII emission is also intense, located in the central region of the bubble (blueish in this picture).
A “superbubble” is a very hot nebula (several million degrees) formed by the explosion of massive stars having more than 8 solar masses. These stars cause powerful stellar winds whose energy is located inside the bubble.
HOO Palette version (HOO): H-Alpha mapped to red, OIII mapped to green and blue channels. While the colors in this image are not the true colors, the narrowband filters were used create the nebula color and broadband filters were used to create the stars’ color.
RA 05h 42m 38.3s
DEC -67° 47’ 51.0 »
ORIENTATION Up is 10.7 degrees E of N
CONSTELLATION Dorado
DISTANCE 170,000 ly
Captured February 2022
Fiel Of view: 19.3 x 19.3 arcmin
Total integration time of 28 hours.
Technical Details
Data acquisition: Martin PUGH
Processing: Nicolas ROLLAND
El Sauce Observatory, Rio Hurtado, Chile
Ha: 23*1800s
OIII: 21*1800s
L: 12*900s
R: 4*900s
G: 4*900s
B: 4*900s
Optics: Planewave 17“ CDK @ F6.8
Mount: Paramount ME
CCD: SBIG STXL-11002 (AOX)
Superbubble in the LMC - Henize 70
Henize 70 (N70) is a “superbubble” nebula (300 ly) located in the Large Magellanic Cloud (LMC). Hints that the shape of Henize 70 was due to the shock waves of an old supernova explosion (yet to be confirmed). Its shape was also sculpted by a small group of very hot O and B stars located at the center.
Ha emission is strong, consistent with its potential supernova origin. OIII emission is also intense, located in the central region of the bubble (blueish in this picture).
A “superbubble” is a very hot nebula (several million degrees) formed by the explosion of massive stars having more than 8 solar masses. These stars cause powerful stellar winds whose energy is located inside the bubble.
HOO Palette version (HOO): H-Alpha mapped to red, OIII mapped to green and blue channels. While the colors in this image are not the true colors, the narrowband filters were used create the nebula color and broadband filters were used to create the stars’ color.
RA 05h 42m 38.3s
DEC -67° 47’ 51.0 »
ORIENTATION Up is 10.7 degrees E of N
CONSTELLATION Dorado
DISTANCE 170,000 ly
Captured February 2022
Fiel Of view: 19.3 x 19.3 arcmin
Total integration time of 28 hours.
Technical Details
Data acquisition: Martin PUGH
Processing: Nicolas ROLLAND
El Sauce Observatory, Rio Hurtado, Chile
Ha: 23*1800s
OIII: 21*1800s
L: 12*900s
R: 4*900s
G: 4*900s
B: 4*900s
Optics: Planewave 17“ CDK @ F6.8
Mount: Paramount ME
CCD: SBIG STXL-11002 (AOX)