Resemblance to the video game character
Look through the cosmic cloud cataloged as NGC 281 and you might miss the stars of open cluster IC 1590. Still, formed within the nebula that cluster’s young, massive stars ultimately power the pervasive nebular glow. The eye-catching shapes looming in this portrait of NGC 281 are sculpted dusty columns and dense Bok globules seen in silhouette, eroded by intense, energetic winds and radiation from the hot cluster stars. If they survive long enough, the dusty structures could also be sites of future star formation. Playfully called the Pacman Nebula because of its overall shape, NGC 281 is about 10,000 light-years away in the constellation Cassiopeia. This sharp composite image was made through narrow-band filters. It combines emission from the nebula’s hydrogen and oxygen atoms to synthesize red, green, and blue colors. The scene spans well over 80 light-years at the estimated distance of NGC 281.
The Pacman Nebula in Cassiopeia
|Imaging telescope||Explore Scientific ED 102 APO FCD1|
|Imaging camera||ZWO ASI 1600MM PRO|
|Mount||SkyWatcher HEQ5 Pro|
|Guiding||Guidescope 240mm, ZWO ASI 120MM|
|Filter||Astronomik H-Alpha 6nm 1.25″, Astronomik OIII 6nm 1,25″|
|Accessories||TS PHOTOLINE x0.80 Reducer/Korrektor|
|Integration||24.9 hours, H-Alpha: 243×180″, OIII: 255×180″|
|Dates of recording||7 nights in September 2018|
PACMAN NEBULA PRINT
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