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The Bubble

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About this observation
Observer
Dean Ashton
Time of observation
29/09/2017 - 21:52
Object
NGC7635
Observing location
St Austell, Cornwall UK
Equipment
Celestron 235mm EdgeHD SCT
Celestron CGEM Mount
Celestron Nightscape 10100 RGB CCD
Off-Axis Guiding with LoadstarX2 Guide Camera
Exposure
46x300s
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The famous 'bubble' created by the shock wave of the stellar wind from SAO 20575 impacting on the extensive nebula surrounding NGC7635.

This image was actually made using a total of 46 five-minute exposures.  Half of the exposures were captured on 6th September 2015 using a 203mm Celestron C8 SCT at f/4.6.  The others were captured on 29th September 2017 using a 235mm Celestron 9.25 at f/10.

Image calibration, registration, integration and processing was carried out using PixInsight.

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