220122 - IC1848 "Soul"_closeup
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click image to enlarge
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ASTRO:
type=HII emission nebula mag=6.5 const=Casseopeia dist=7,500 ly IMAGE: location=EB Driveway, BrtlCls=5 exposure=DSLR OSC; 37x600s (6.2h), ISO3200 palette=HOO EQUIPMENT: camera=Nikon D90 (mod) optics=ES102 w24mmEP (afoc-proj), F(eff.)=1238mm, f/12.1(eff.) filter=Radian Triad QNB mount=Celestron AVX guiding=Orion 60x240mm, ZWO ASi224MC SOFTWARE: acquisition=Stellarium, APT, PHD2, processing=PixInsight, RCAstro, PhotoshopCC, LrC |
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This is a close-up of the "mouth" region of IC 1848, the "Soul" nebula. It is where the most active star-forming region of the nebula is located, as indicated by the gas and dust pillars present there.
Westerhaut 5 (or "W5"), is a radio source within the nebula, and spans an area of sky equivalent to four full moons. It is about 6,500 light-years away from Earth in the constellation Cassiopeia. Like other massive star-forming regions, such as Orion and Carina, W5 contains large cavities that were carved out by radiation and winds from the region's most massive stars. According to the theory of triggered star formation, the carving out of these cavities pushes gas together, causing it to ignite into successive generations of new stars. Scientists studying the nebula have been able to show that the ages of the stars become progressively and systematically younger within closer distances from the center of these cavities.
Westerhaut 5 (or "W5"), is a radio source within the nebula, and spans an area of sky equivalent to four full moons. It is about 6,500 light-years away from Earth in the constellation Cassiopeia. Like other massive star-forming regions, such as Orion and Carina, W5 contains large cavities that were carved out by radiation and winds from the region's most massive stars. According to the theory of triggered star formation, the carving out of these cavities pushes gas together, causing it to ignite into successive generations of new stars. Scientists studying the nebula have been able to show that the ages of the stars become progressively and systematically younger within closer distances from the center of these cavities.