Contains:Trifid nebula, M 20, NGC 6514
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Kitchen Sink Trifid Nebula, 




    

        Kevin Morefield
Kitchen Sink Trifid Nebula

Kitchen Sink Trifid Nebula

Technical card

Resolution: 4074x3803

Dates: April 13, 2018

Frames:
Astrodon 36mm 5,3,3 and LRGB: 109x900" bin 1x1
Baader 50mm H7,O8,S8 and LRGB: 4x1200" bin 1x1
Baader 50mm H7,O8,S8 and LRGB: 120x300" bin 1x1

Integration: 38.6 hours

Avg. Moon age: 26.91 days

Avg. Moon phase: 7.55%

Astrometry.net job: 2013542

RA center: 270.619 degrees

DEC center: -22.999 degrees

Pixel scale: 0.728 arcsec/pixel

Orientation: 0.019 degrees

Field radius: 0.564 degrees

Locations: Sierra Remote Observatory, Auberry, California, United States

Description

Not sure how to describe this one. In 2016 I had shot a number of 2x2 binned, 300 second subs of the Trifid using the 16803 camera at 1.46 a-s image scale. I wasn't pleased with the resolution so in 2017 I installed the 8300 camera and shot 900 second narrowband subs at .43 a-s scale. The detail was OK but the frame was too tight. This month I shot 4 Ha subs with the 16803 and decided to throw it all together.

So the base image is the 120 HaLRGB 300 seconds subs + 4 Ha 1200 seconds subs with the Ha blended into the Luminance and the red channel. Then I pulled up my 24 hours of SHO narrow band data and added the it as luminance data to add detail to the central part of the nebula.

The SHO data was added as a layer in PS that I manually scaled and aligned. I feathered it heavily and blended it at around 75% opacity. That added depth and resolution to the bright nebula.

I wouldn't do this again on purpose but as I accumulate more data on project moving forward I guess there's no reason not to use anything that can help!

Comments

Author

morefield
Kevin Morefield
License: None (All rights reserved)
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Revisions

  • Kitchen Sink Trifid Nebula, 




    

        Kevin Morefield
    Original
  • Final
    Kitchen Sink Trifid Nebula, 




    

        Kevin Morefield
    B

B

Corrected color balance

Sky plot

Sky plot

Histogram

Kitchen Sink Trifid Nebula, 




    

        Kevin Morefield