Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  NGC 7822
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Ced 214 or Sh 171 Emission Nebula in Cepheus, Alastairmk
Ced 214 or Sh 171 Emission Nebula in Cepheus
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Ced 214 or Sh 171 Emission Nebula in Cepheus

Getting plate-solving status, please wait...
Ced 214 or Sh 171 Emission Nebula in Cepheus, Alastairmk
Ced 214 or Sh 171 Emission Nebula in Cepheus
Powered byPixInsight

Ced 214 or Sh 171 Emission Nebula in Cepheus

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Description

Cederblad 214, also designated Sharpless 171 is an emission nebula imaged under high levels of light pollution (Bortle 6.2) in the Washington DC suburbs. Image consists of 39 x 5 minute narrowband Ha, OIII & SII subframes, with dark, bias and flat frames subtracted.

Pixinsight, linear processing: Mure denoise, background extraction & deconvolution. Each channel stretched separately, using masked stretch for OIII & SII with curves transforms to bring out highlights and suppress background.

Non-linear processing involved TGV denoise, curves transform, saturation adjustment and multistage median transformation

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Ced 214 or Sh 171 Emission Nebula in Cepheus, Alastairmk

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NOVAC