Heart Nebula
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The Heart Nebula is an emission nebula, 7500 light years away from Earth and located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. It was discovered by William Herschel on 3 November 1787. It displays glowing ionized hydrogen... Wikipedia
Magnitude: 18.3
Radius: 100 light years
Coordinates: RA 2h 33m 22s | Dec +61° 26′ 36″
Distance to Earth: 7,500 light years
Absolute magnitude (V): 6.5
Constellation: Cassiopeia