deep-sky
nebula (reflection)
NGC 7023 – Iris Nebula
Just over 1300 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 !
Other / older versions :
Image information:
Object info
Name: NGC 7023 – The Iris Nebula
Type: Nebula (reflection)
Constellation: Cepheus
Distance: 1300 ly
Date & location
Date: June 27, 2011
Location: Landgraaf, The Netherlands
Equipment & optics
Total integration: 2h48m
Camera: SBIG ST-8300M
Optics: TMB/LOMO 80/480
Mount: Losmandy G-11 Gemini
Image comments
It does not get completely dark at these latitudes at this time of year.
Some halos around brighter stars.
