Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  Bubble Nebula  ·  NGC 7635
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NGC7635 - 20231031 - Celestron C6 at F7.1, altazastro
NGC7635 - 20231031 - Celestron C6 at F7.1
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NGC7635 - 20231031 - Celestron C6 at F7.1

Getting plate-solving status, please wait...
NGC7635 - 20231031 - Celestron C6 at F7.1, altazastro
NGC7635 - 20231031 - Celestron C6 at F7.1
Powered byPixInsight

NGC7635 - 20231031 - Celestron C6 at F7.1

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Description

The nominally 0.63x reducer works in reality at just about 0.71x without excessive vignetting on an APS-C sensor. This, paired with the sensitivity limits of DSLR sensors, makes one hour of integrated light definitely not enough for this subject.
I posted the final result more as a tribute to the time spent working on it than for the result in itself; however I rather do like the stars and the fact that the AZ-GTI tracked with minimal rejection rate at about 1070 mm focal length for 20 seconds exposures.
The main image has been binned 0.71x in post-production with StarTools to improve SNR a bit, even more so with the 2x2 bin image added afterward.

Comments

Revisions

  • Final
    NGC7635 - 20231031 - Celestron C6 at F7.1, altazastro
    Original
  • NGC7635 - 20231031 - Celestron C6 at F7.1, altazastro
    B

B

Title: Software binned 2x2

Description: Binned 2x2 with StarTools to further improve SNR.

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NGC7635 - 20231031 - Celestron C6 at F7.1, altazastro