Just over 1.300 light years away this beautiful reflection nebula (also known as Caldwell 4) can be found in the constellation Cepheus.
To be precise, the star cluster inside the nebula is actually known as NGC7023.
The light of the central mag 7 star (SAO 19158) is reflected by a large amount of dust particles still surrounding it.
Supposedly the central star is less than 5000 years old !
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Object info
| Name | NGC7023 – The Iris Nebula |
| Type | Reflection nebula |
| Constellation | Cepheus |
| Right ascension | 21h 01m 35s |
| Declination | +68° 10′ 10″ |
| Distance | 1.300 ly |
| Other designations | Caldwell 4, LBN487 |
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