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Double cluster reprocess with PI - calibrating star colours with PhotometricColorCalibration, 



    
        

            Ian Dixon
Powered byPixInsight

Double cluster reprocess with PI - calibrating star colours with PhotometricColorCalibration

Getting plate-solving status, please wait...
Double cluster reprocess with PI - calibrating star colours with PhotometricColorCalibration, 



    
        

            Ian Dixon
Powered byPixInsight

Double cluster reprocess with PI - calibrating star colours with PhotometricColorCalibration

Imaging telescopes or lenses: Stellarvue 70 mm f6 apo triplet refractor

Imaging cameras: Canon 60D modified UV/IR cut DSLR

Mounts: SkyWatcher NEQ6 PRO

Guiding telescopes or lenses: tasco 60mm/360 mm doublet

Guiding cameras: ZWO ASI290MM mini

Focal reducers: Stellarvue SFFR70APO

Software: PixInsight 1.8.8 Ripley PixInsight  ·  Aries Productions Astro Pixel Processor APP  ·  Adobe Lightroom 2019 CC

Accessory: ASIair Pro  ·  Orion Bahtinov mask


Dates:Nov. 5, 2020

Frames: 22x300"

Integration: 1.8 hours

Avg. Moon age: 19.18 days

Avg. Moon phase: 79.49%


Astrometry.net job: 4200625

RA center: 2h 19' 15"

DEC center: +57° 7' 3"

Pixel scale: 2.620 arcsec/pixel

Orientation: -89.233 degrees

Field radius: 2.272 degrees


Resolution: 5198x3463

Locations: Farm dark site, somewhere near St. Agathe, Manitoba, Canada

Data source: Traveller

Description

I gathered this data a couple of months ago using my 70mm apo.

The challenge here is in the processing. I'm just beginning to get comfortable with processing using Pixinsight. Slowly getting the hang of it I think. In this image I tried to use the fantastic resources available to accurately calibrate the star colours. PI is so powerful! :)

EDIT:

P.S. I used PhotometricColorCalibration with the average spiral galaxy white reference. To allow the software to 'find" the field, it was important to note the details (correct time, etc) of the image capture.

A detailed description can be found here: https://pixinsight.com/tutorials/PCC/

PI notes that his tool is designed to be applied to "linear images" that have been acquired through filters with relatively wide passbands, which is similar to those used by the APASS catalog.

Thanks for looking.

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