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
Contains:  NGC 7023
Getting plate-solving status, please wait...

Iris Nebula - Pixinsight Reprocess

Technical card

Imaging telescope or lens:Takahashi Epsilon 130D

Imaging camera:QSI 690 WSG-8

Mount:Orion Atlas EQ-G

Guiding telescope or lens:Takahashi Epsilon 130D

Guiding camera:Lodestar

Filter:Astrodon LRGB CCD Gen II E-Series 1.25"

Resolution: 1300x937

Dates:June 16, 2016

Frames: 156x420"

Integration: 18.2 hours

Avg. Moon age: 11.11 days

Avg. Moon phase: 85.63%

Astrometry.net job: 1681766

RA center: 21h 2' 33"

DEC center: +68° 2' 13"

Pixel scale: 5.765 arcsec/pixel

Orientation: 98.045 degrees

Field radius: 1.283

Locations: Backyard, Austin, Texas, United States

Description

With PI 1.8.5 released, There are couple of interesting tools I wanted to try out.

I had collected this data from my redzone backyard with E-130D from very bad quality skies with tons of gradients.

The first tool I used was the LocalNormalization. This tool allows to do much better gradient rejection after the registration setp and this helped a lot with data. Earlier, it was very hard to figure out the signal vs gradient and with lot of dust in the field, it was hard to do DBE.

The next tool is the PhotoMetricColorCalibration (PCC) which uses APASS data to calibrate the color in the field. It worked well (Mine had cyan casting) but the resultant had more green cast. But still it is an improvement.

EDIT: Turns out the using G2V star white reference produces better color correction. I had done the PCC with spiral galaxy default (Which is not right for this image). Still learning the new tools, but it is looking very powerful

Comments

Author

anismo
Anis Abdul
License: None (All rights reserved)
4557
Like

Revisions

B

Manual color balance to show browish dust.

Sky plot

Sky plot

Histogram

Iris Nebula - Pixinsight Reprocess , 





    
        

            Anis Abdul