Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Hemisphere:  Southern  ·  Contains:  NGC 5139, omega Cen

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)
    Powered byPixInsight

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

    Technical card

    Imaging telescopes or lenses: Ceravolo 300 Astrograph (f/4.9)

    Imaging cameras: Alta U16M

    Mounts: Astro-Physics AP900

    Software: PixInsight 1.8

    Filters: Astrodon B Gen.2 E-series  ·  Astrodon G Gen.2 E-series  ·  Astrodon R Gen.2 E-series  ·  Astrodon L Gen.2 E-series

    Accessory: FLI Atlas focuser



    Basic astrometry details

    Astrometry.net job: 1612241

    RA center: 13h 26' 50"

    DEC center: -47° 29' 6"

    Pixel scale: 0.627 arcsec/pixel

    Orientation: 359.752 degrees

    Field radius: 0.720 degrees


    Resolution: 6356x5290

    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)
    110611
    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

    Description: ColorCalibration, stars white ref, corrected for galactic dust extinction

    C

    Description: PhotometricColorCalibration, G2V white ref

    D

    Description: PhotometricColorCalibration, G2V white ref, corrected for galactic dust extinction

    E

    Description: PhotometricColorCalibration, average spiral galaxy white ref

    F

    Description: 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