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Contains:  omega Cen, NGC 5139

Image of the day 06/15/2017

Getting plate-solving status, please wait...
    NGC5139 (Omega Cen) with a variety of colour calibrations (test PixInsight 1.8.5 PCC), 





    
        

            Rick Stevenson
    NGC5139 (Omega Cen) with a variety of colour calibrations (test PixInsight 1.8.5 PCC)

    NGC5139 (Omega Cen) with a variety of colour calibrations (test PixInsight 1.8.5 PCC)

    Technical card

    Resolution: 6356x5290

    Astrometry.net job: 1612241

    RA center: 201.710 degrees

    DEC center: -47.485 degrees

    Pixel scale: 0.627 arcsec/pixel

    Orientation: -179.752 degrees

    Field radius: 0.720 degrees

    Description

    Some results from an early release of PixInsight 1.8.5 testing the new PhotometricColorCalibration tool. PCC plate solves the field and uses photometric data for stars in the field to calculate the colour parameters relative to a user specified white reference. It is very cool!

    Processing is a little rough as this was an experiment and I wasn't attempting to produce a perfect image. There are 6 different revisions :
    - "Classic" ColorCalibration, stars white ref
    - "Classic" ColorCalibration, stars white ref, corrected for galactic dust extinction
    - PhotometricColorCalibration, G2V white ref
    - PhotometricColorCalibration, G2V white ref, corrected for galactic dust extinction
    - PhotometricColorCalibration, average spiral galaxy white ref
    - PhotometricColorCalibration, average spiral galaxy white ref, corrected for galactic dust extinction

    Kudos to Juan Conejero for the very ambitious and new feature rich 1.8.5 release, and to Vicent Peris for the PCC tool and the model for extinction correction. Thanks, guys!

    Comments

    Author

    RickS
    Rick Stevenson
    License: None (All rights reserved)
    101212
    Like

    Revisions

      NGC5139 (Omega Cen) with a variety of colour calibrations (test PixInsight 1.8.5 PCC), 





    
        

            Rick Stevenson
      Original
      NGC5139 (Omega Cen) with a variety of colour calibrations (test PixInsight 1.8.5 PCC), 





    
        

            Rick Stevenson
      B
      NGC5139 (Omega Cen) with a variety of colour calibrations (test PixInsight 1.8.5 PCC), 





    
        

            Rick Stevenson
      C
      NGC5139 (Omega Cen) with a variety of colour calibrations (test PixInsight 1.8.5 PCC), 





    
        

            Rick Stevenson
      D
      NGC5139 (Omega Cen) with a variety of colour calibrations (test PixInsight 1.8.5 PCC), 





    
        

            Rick Stevenson
      E
    • Final
      NGC5139 (Omega Cen) with a variety of colour calibrations (test PixInsight 1.8.5 PCC), 





    
        

            Rick Stevenson
      F

    B

    ColorCalibration, stars white ref, corrected for galactic dust extinction

    C

    PhotometricColorCalibration, G2V white ref

    D

    PhotometricColorCalibration, G2V white ref, corrected for galactic dust extinction

    E

    PhotometricColorCalibration, average spiral galaxy white ref

    F

    PhotometricColorCalibration, average spiral galaxy white ref, corrected for galactic dust extinction

    Sky plot

    Sky plot

    Histogram

    NGC5139 (Omega Cen) with a variety of colour calibrations (test PixInsight 1.8.5 PCC), 





    
        

            Rick Stevenson