Contains:IC 443, The star Propus (ηGem)
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A jellyfish trough the clouds... more or less!, 




    

        Luigi Fontana
A jellyfish trough the clouds... more or less!

A jellyfish trough the clouds... more or less!

Technical card

Resolution: 1774x1381

Dates: Dec. 29, 2013

Frames: 15x600"

Integration: 2.5 hours

Avg. Moon age: 26.15 days

Avg. Moon phase: 12.38%

Astrometry.net job: 155083

RA center: 94.103 degrees

DEC center: 22.609 degrees

Pixel scale: 3.049 arcsec/pixel

Orientation: -91.064 degrees

Field radius: 0.952 degrees

Locations: Tornante di Bogli, Bogli, PC, Italy

Data source: Unknown

Description

The Jellyfish Nebula, with the "double tube" technique. APO 130/900 with SBIG 11000M in Ha, and on the same time Baker 200 mm f/2,3 with Canon 350 baader modified. 15x600" in Ha, 25x300" in color, because of passing clouds. Italian Appennini, Bortle 3+, SQM 21,0, really high humidity. The Baker went a bit defocused, and at f2 it is a tragedy. Images B and C are color and Ha alone. Combined and color images are cropped to avoid the borders of defocused Baker.

Comments

Author

luigifontana
Luigi Fontana
License: Attribution-NonCommercial-ShareAlike Creative Commons
3220
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Revisions

  • Final
    A jellyfish trough the clouds... more or less!, 




    

        Luigi Fontana
    Original
  • A jellyfish trough the clouds... more or less!, 




    

        Luigi Fontana
    B
  • A jellyfish trough the clouds... more or less!, 




    

        Luigi Fontana
    C

Sky plot

Sky plot

Histogram

A jellyfish trough the clouds... more or less!, 




    

        Luigi Fontana