Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent nebula  ·  NGC 6888
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Crescent Nebula, Tony Cook
Crescent Nebula
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Crescent Nebula

Getting plate-solving status, please wait...
Crescent Nebula, Tony Cook
Crescent Nebula
Powered byPixInsight

Crescent Nebula

Equipment

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Acquisition details

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Description

Now that September skies are dark and longer I've now started to work up experience with the ASA N10 astrograph by imaging the Crescent Nebula.

One major problem I've still to iron out is inevitable lens fogging with the Wynne Corrector. There appears to be no reasonable way to fit a lens heating tape as you have the whole mass of the focuser to deal with minimum thermal contact to the draw tube via 6 rollers!

Revision B: Added some deconvolution to counter poor seeing - via Images Plus Adaptive Richardson-Lucy restoration - 5x5 Gaussian PSF - 10 iterations in centre and 5 in the outer area

Comments

Revisions

  • Crescent Nebula, Tony Cook
    Original
  • Final
    Crescent Nebula, Tony Cook
    B

Sky plot

Sky plot

Histogram

Crescent Nebula, Tony Cook

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Cloudy Nights