NGC 281, also known as the Pacman Nebula due to its shape resembling the video game character, is a region of space located about 9,200 light-years away in the constellation Cassiopeia. This emission nebula is a star-forming region made up of ionized hydrogen gas, glowing brightly due to the radiation from young, hot stars within.
At its core is an open star cluster known as IC 1590, home to several massive stars that help shape the surrounding nebula. These stars emit strong ultraviolet light, which strips electrons from nearby hydrogen atoms, causing the nebula to glow. The interaction between stellar winds from these stars and surrounding gas leads to the formation of pillars, ridges, and dense clumps, where new stars may be born.
NGC 281 is also notable for the presence of Bok globules—small, dark clouds of gas and dust—where star formation is ongoing. These globules can collapse under their gravity, forming new stars over millions of years.
This nebula gives astronomers a unique opportunity to study the birth and early development of stars. By examining regions like NGC 281, scientists can better understand the processes that govern star formation and the evolution of galaxies over time.
Its distinctive shape and beauty make NGC 281 a popular target for both professional and amateur astronomers. Through telescopes, especially in infrared wavelengths, it reveals stunning details of star formation and cosmic structures.
Capture Details:
Telescope: William Optics Z73
Reducer/Flattener: William Optics Flat6aiii
Filter: Optolong L-Pro Optolong L-Extreme
Camera: ZWO ASI183MC Pro
Mount: Skywatcher EQM-35 Pro
Total Captured: 274 Optolong L-Extreme 61 Optolong L-Pro
Total Time: 14 hours and 43 minutes
Capture Software: N.I.N.A.
Guiding: PHD2, ZWO asi120mm mini,
Processed in: PixInsight
Additional details on Astrobin.com.