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Contains:  Great Cluster in Hercules, M 13, NGC 6205
Getting plate-solving status, please wait...
Messier 13, 


Messier 13
Powered byPixInsight

Messier 13

Imaging telescopes or lenses: CELESTRON EdgeHD 8

Imaging cameras: QHYCCD QHY8L

Mounts: Sky-Watcher AZ-EQ6 Synscan

Guiding telescopes or lenses: CELESTRON EdgeHD 8

Software: Sequence Generator Pro  ·  PixInsight  ·  PHD Guiding 2.5.0

Accessory: Starlight Xpress Lodestar x2  ·  Starlight Xpress AO Unit  ·  QHYCCD PoleMaster  ·  Starizona MicroTouch Autofocuser  ·  Innovations Foresight ONAG

Dates:July 26, 2016Aug. 1, 2016Aug. 9, 2016

Frames: 17x900" -15C bin 1x1

Integration: 4.2 hours

Darks: ~7

Flats: ~5

Bias: ~50

Avg. Moon age: 18.68 days

Avg. Moon phase: 31.90%

Mean SQM: 21.00

Mean FWHM: 2.40

Temperature: 18.00

Basic astrometry details job: 1497987

RA center: 16h 41' 46"

DEC center: +36° 27' 46"

Pixel scale: 0.756 arcsec/pixel

Orientation: 358.956 degrees

Field radius: 0.383 degrees

Resolution: 3040x2024

Locations: Duc, Prayssas, Lot et Garonne, France


Equipment used :
first & 2nd night : AO with OAG
3rd nights : AO + ONAG (on axis guiding)

No dithering on first night subs.

Pre-processing done in Pixinsight :
- overscan area offset correction
- bias correction
- dark correction using 7 x 1800 s darks
- flat correction
- hot pixel correction
- debayer
- registration
- stack
Processing done in Pixinsight :
- backgroung color neutralisation
- color calibration using cluster
- sky background removal (DBE in PI)
- slight deconvolution
- non linear image creation
- color saturation boost masked
- TGV denoise (no mask)
Final image :
- jpeg calibration done in Mac Photo (levels adjust and further saturation boost)



License: None (All rights reserved)

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Messier 13,