IC 1805 IN HOO COMBINATION (Emanuele La Barbera)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1805

IC 1805 IN HOO COMBINATION, Emanuele La Barbera

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IC 1805 IN HOO COMBINATION

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IC 1805 IN HOO COMBINATION

SH2-190, better known as the Heart Nebula, is a very large H-II region, in association with an open cluster known as IC 1805 or Melotte 15, visible in the constellation of Cassiopeia. It's a very extensive star-forming region, whose distance is estimated at 7500 light years from us; its main feature is the presence of two large apparently empty areas, of different sizes, which make the nebula similar to a "heart". Inside there is a system of small, poorly concentrated open clusters, responsible for the ionization of the nebula. The most notable of these is Melotte 15, which contains some stars about 50 times as massive as the Sun, plus others smaller and a microquasar ejected millions of years ago.
For this version I've used the HOO combination technique, to highlight the gases of hydrogen and oxygen

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IC 1805 IN HOO COMBINATION

IC 1805 IN HOO COMBINATION

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