Heart Nebula

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Heart Nebula
Emission nebula
H II region
Heart Nebula.jpg
The Heart Nebula captured
using an H-alpha filter.
Observation data: J2000.0 epoch
Right ascension02h 33m 22s
Declination+61° 26′ 36″
Distance7,500 ly
Apparent magnitude (V)18.3
Apparent dimensions (V)150' x 150'
Physical characteristics
Radius165 ly
Absolute magnitude (V)6.5
DesignationsNGC 896, IC1805, Sh2-190
See also: Lists of nebulae
The Heart Nebula captured in Ha, Sii and Oiii. Presented in the Hubble Palette by Leeds UK based amateur astro-photographer urmymuse

The Heart 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.[1] It is an emission nebula showing glowing ionized hydrogen gas and darker dust lanes.[2]

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 our Sun, and many more dim stars that are only a fraction of our Sun's mass.[1]

Heart Nebula captured on an ASI2600mc-pro with a Triad Narrowband Filter
With the Soul Nebula it is part of a large chimney cloud complex

See also[edit]


  1. ^ a b "New General Catalog Objects: NGC 850 - 899". cseligman.com. Retrieved 2017-12-19.
  2. ^ "astronomy-mall.com/Adventures.In.Deep.Space/NGC%201-7840%20complete.htm". astronomy-mall.

External links[edit]

Coordinates: Sky map 02h 33m 00s, +61° 27′ 00″