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Contains:  B342, B343, B344, IC 1311, IC1311, PK077+02.1, PK077+03.1, PK077+03.2, PK078+05.1
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IC1311 and friends, 



    
        

            Gabe Shaughnessy
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IC1311 and friends

Technical card


Dates:July 10, 2020

Frames:
Chroma Ha 3nm: 3x900" bin 1x1
Chroma OIII 3nm: 11x900" bin 1x1
Chroma SII 3nm: 4x900"

Integration: 4.5 hours

Avg. Moon age: 19.92 days

Avg. Moon phase: 72.83%


Astrometry.net job: 3688920

RA center: 20h 10' 53"

DEC center: +41° 7' 25"

Pixel scale: 1.843 arcsec/pixel

Orientation: -0.840 degrees

Field radius: 2.509 degrees


Resolution: 8141x5431

Data source: Backyard

Description

This is a first light image with my new ASI6200MM that was intended more as a test, but evolved into a new project. I started this project with a QHY16200A on the same scope, and wanted more data with this, but in the end liked the wider field so much more that I went with this data. This is all taken in one night, and due to poor planning on my part (I didn't expect the data to be that clean), I only have 3 Ha and 4 SII exposures. The OIII in this region is pretty faint, so that's why I concentrated on that to get the noise down. I still have some spacing issues to resolve, which should be done when my new adapter comes in. In comparing the OIII channel from this camera, and the QHY16200A, it was a night and day difference.

It seems gain=100 will be a good test to do as well. Early indications show a lot of improvement at gain=100 vs. gain=0 for narrowband with only a minor impact on dynamic range. This was taken with Gain=0, Offset=0, but I had previously built my bias/dark library with offset=50. I had to get creative with the dark subtraction, but honestly this sensor is so clean I probably didn't have to do that.

Comments

Author

AstroGabe
Gabe Shaughnessy
License: None (All rights reserved)
2621
Like

Revisions

  • IC1311 and friends, 



    
        

            Gabe Shaughnessy
    Original
  • IC1311 and friends, 



    
        

            Gabe Shaughnessy
    B
  • Final
    IC1311 and friends, 



    
        

            Gabe Shaughnessy
    C
  • IC1311 and friends, 



    
        

            Gabe Shaughnessy
    D
  • IC1311 and friends, 



    
        

            Gabe Shaughnessy
    E

B

Description: Starless version

D

Description: IC1318A crop

E

Description: IC1311 crop with the small planetary nebula PN G077.6+04.3

Sky plot

Sky plot

Histogram

IC1311 and friends, 



    
        

            Gabe Shaughnessy