Sh2-284 Emission Nebula in SHO (Douglas J Struble)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon)

Sh2-284 Emission Nebula in SHO, Douglas J Struble

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Sh2-284 Emission Nebula in SHO

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Sh2-284 Emission Nebula in SHO

Perhaps the most interesting features in Sh2-284 are what astronomer call "elephant trunks." Elephant trunks are monstrous pillars of dense gas and dust. The most famous examples of are the "Pillars of Creation," found in an iconic image of the Eagle nebula from NASA's Hubble Space Telescope. Deep inside Sh2-284 resides an open star cluster, called Dolidze 25, which is emitting vast amounts of radiation in all directions, along with stellar winds. These stellar winds and radiation are clearing out a cavern inside the surrounding gas and dust, creating the void seen in the center. HII regions go hand in hand with star formation, and indeed the stars in the central Dolidze 25 cluster have just recently formed. They're hot, young, bright stars, with ages ranging from 1.5 to 13 million years; infants by astronomical standards. In comparison, the sun is about 4.6 billion years old.

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Astrometry.net job	9539129
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Sh2-284 Emission Nebula in SHO

Sh2-284 Emission Nebula in SHO

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Sh2-284 Emission Nebula in SHO

Sh2-284 Emission Nebula in SHO

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