Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  HD14328  ·  HD14441  ·  HD14442  ·  HD14510  ·  HD14552  ·  HD14558  ·  HD14559  ·  HD14579  ·  HD14632  ·  HD14644  ·  HD14695  ·  HD14696  ·  HD14749  ·  HD14794  ·  HD14795  ·  HD14817  ·  HD14914  ·  HD14946  ·  HD14947  ·  HD15000  ·  HD15022  ·  HD15023  ·  HD15069  ·  HD15102  ·  HD15238  ·  HD15239  ·  HD15250  ·  HD15344  ·  HD15382  ·  HD15440  ·  And 147 more.
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Heart & Soul Nebula, Darius Kopriva
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Heart & Soul Nebula, Darius Kopriva
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Description

The Heart Nebula (also known as the Running dog nebula), IC 1805, Sharpless 2-190, is some 7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. It was discovered by William Herschel on 3 November 1787. It is an emission nebula showing glowing ionized hydrogen gas and darker dust lanes.

 The brightest part of the nebula (a knot at its western edge) is separately classified as NGC 896, because it was the first part of the nebula to be discovered. The nebula's intense red output and its morphology are driven by the radiation emanating from a small group of stars near the nebula's center. This open cluster of stars, known as Collinder 26 or Melotte 15, contains a few bright stars nearly 50 times the mass of the Sun, and many more dim stars that are only a fraction of the Sun's mass. 

Westerhout 5 (Sharpless 2-199, LBN 667, Soul Nebula) is an emission nebula located in Cassiopeia. Several small open clusters are embedded in the nebula: CR 34, 632, and 634 (in the head) and IC 1848 (in the body). The object is more commonly called by the cluster designation IC 1848.

Small emission nebula IC 1871 is present just left of the top of the head, and small emission nebulae 670 and 669 are just below the lower back area.

This complex is the eastern neighbor of IC1805 (Heart Nebula) and the two are often mentioned together as the "Heart and Soul".

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Heart & Soul Nebula, Darius Kopriva

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Southern Hemisphere Astro