Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  NGC 7023
Open Cluster NGC7023 and  Iris Nebula Cadwell 4 in a cloud of dust, deppski
Open Cluster NGC7023 and  Iris Nebula Cadwell 4 in a cloud of dust
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Open Cluster NGC7023 and Iris Nebula Cadwell 4 in a cloud of dust

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Description

Suburban light pollution but quite transparent sky.

The star's SAO 19158 straylight illuminates the inner nebula blue and its ultraviolett radiation is converted by photoluminescence on the dust into a dark brown or reddish glow.

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  • Open Cluster NGC7023 and  Iris Nebula Cadwell 4 in a cloud of dust, deppski
    Original
  • Final
    Open Cluster NGC7023 and  Iris Nebula Cadwell 4 in a cloud of dust, deppski
    B

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Open Cluster NGC7023 and  Iris Nebula Cadwell 4 in a cloud of dust, deppski