Hemisphere:  Southern  ·  Contains:  Hourglass nebula  ·  IC 1274  ·  IC 1275  ·  IC 4684  ·  IC 4685  ·  Lagoon nebula  ·  M 20  ·  M 21  ·  M 8  ·  NGC 6514  ·  NGC 6523  ·  NGC 6526  ·  NGC 6530  ·  NGC 6531  ·  NGC 6544  ·  NGC 6546  ·  NGC 6559  ·  The star 7Sgr  ·  The star 9Sgr  ·  Trifid nebula
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M20 & M8 - Trifid and Lagoon, 



    
        

            Jon Rista
M20 & M8 - Trifid and Lagoon
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M20 & M8 - Trifid and Lagoon

Technical card

Imaging telescopes or lenses: Canon EF 600mm f/4 L II

Imaging cameras: Canon 5D mark III

Mounts: Orion Atlas EQ-G

Guiding telescopes or lenses: ORION 80mm Short Tube

Software: BackyardEOS v3  ·  PixInsight PixInsinght  ·  Adobe Photoshop CC (64 Bit)  ·  Astronomy Tools


Dates:June 8, 2015June 12, 2015

Frames:
30x420" ISO400 24C bin 1x1
25x420" ISO400 26C bin 1x1

Integration: 6.4 hours

Darks: ~20

Flats: ~30

Bias: ~100

Avg. Moon age: 23.05 days

Avg. Moon phase: 41.41%

Bortle Dark-Sky Scale: 4.00

Mean SQM: 21.32

Mean FWHM: 4.00

Temperature: 18.00


Basic astrometry details

Astrometry.net job: 668826

RA center: 18h 5' 37"

DEC center: -23° 55' 33"

Orientation: -178.533 degrees

Field radius: 2.139 degrees


Resolution: 620x929

Locations: East Quincy Dark Site (Far End), Aurora, CO, United States

Description

Lagoon and Trifid nebulas, imaged from a dark site in eastern Colorado, about 30 minutes out of the Denver metro area. Sky darkness was around 21.4mag/sq"...not the best dark site in the world, but significantly better than imaging with heavy LP from my red zone back yard.

I have several versions here. The original was my first pass at processing, and lacked any meaningful star reduction or color and detail enhancement. Versions B, C, and D include detail enhancement and one, two, or three passes of MT star reduction in PI, respectively.

Version E: Dust lane and detail enhancement.

Comments

Author

jrista
Jon Rista
License: None (All rights reserved)
11413
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Revisions

  • M20 & M8 - Trifid and Lagoon, 



    
        

            Jon Rista
    Original
  • M20 & M8 - Trifid and Lagoon, 



    
        

            Jon Rista
    B
  • M20 & M8 - Trifid and Lagoon, 



    
        

            Jon Rista
    C
  • M20 & M8 - Trifid and Lagoon, 



    
        

            Jon Rista
    D
  • Final
    M20 & M8 - Trifid and Lagoon, 



    
        

            Jon Rista
    E

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M20 & M8 - Trifid and Lagoon, 



    
        

            Jon Rista

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