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BAA Images Alun Halsey

Observation by Alun Halsey: Crescent nebula widefield

Uploaded by

Alun Halsey

Observer

Alun Halsey

Observed

2021 Sep 27 - 22:15

Uploaded

2021 Sep 29 - 08:36

Objects

The Crescent Nebula (NGC6888)

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Constellation

Cygnus

Field centre

RA: 20h12m
Dec: +38°20'
Position angle: +42°34'

Field size

3°34' × 2°38'

Equipment
  • Atik 314L+ CCD camera
  • Sigma 70-300 zoom lens set to 135mm
  • Baader 7nm Ha filter (1.25")
Exposure

300 seconds x 11 (total of 55 minutes)

Location

Berkshire UK

Target name

Crescent Nebula

Title

Crescent nebula widefield

About this image

314L+ and Sigma 70-300 zoom lens set at 135mm piggybacked to main scope on a CEM60. Eleven subs at 300 seconds each stacked in Deepskystacker and minimal processing in Photoshop CS2 (no darks,flats nor bias frames used).

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