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Contains:  Trifid nebula, M 20, NGC 6514
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M20 Trifid Nebula, 





    
        

            Theodore Arampatz...
M20 Trifid Nebula

M20 Trifid Nebula

Technical card

Resolution: 2082x1359

Dates:Aug. 9, 2015

Frames: 84x540" -7C

Integration: 12.6 hours

Darks: ~30

Flats: ~25

Flat darks: ~25

Bias: ~100

Avg. Moon age: 24.63 days

Avg. Moon phase: 24.85%

Bortle Dark-Sky Scale: 9.00

Astrometry.net job: 1031987

RA center: 270.595 degrees

DEC center: -23.043 degrees

Pixel scale: 1.818 arcsec/pixel

Orientation: -178.422 degrees

Field radius: 0.628 degrees

Locations: Via Lactea Observatory, Paramithia, Epirus, Greece

Data source: Backyard

Description

The Trifid Nebula (catalogued as Messier 20 or M20 and as NGC 6514) is an H II region located in Sagittarius. It was discovered by Charles Messier on June 5, 1764.[3] Its name means 'divided into three lobes'. The object is an unusual combination of an open cluster of stars; an emission nebula (the lower, red portion), a reflection nebula (the upper, blue portion) and a dark nebula (the apparent 'gaps' within the emission nebula that cause the trifurcated appearance; these are also designated Barnard 85). Viewed through a small telescope, the Trifid Nebula is a bright and peculiar object, and is thus a perennial favorite of amateur astronomers.

From Wikipedia, the free encyclopedia

Photographic shots were completed in the period from 14 June to 6 August and needed a total of 7 nights.
Unfortunately, in all the shots I had problem with passing clouds and high humidity .

Instruments and exposure data:
W.O FLT110 with dedicated TMB field flattener
FeatherTouch 3'' focuser
Starizona MicroTouch autofocuser
W.O ZS80 ED
SBIG ST10XME CFW9
Meade DSI
Filters: Ha 5nm Astrodon_S[II] 8nm Baader_O[III] 3nm Astrodon
Sky-Watcher EQ6 Pro

Ha:40*9min bin1x1
S[II]:23*9min bin1x1
O[III]:21*9min bin1x1
Total exposure time:12h 36min

Vironas,Athens Greece

Revision B: This is a superluminance layer . A sum of the median combine masters of SII , OIII and Ha

Revision C: A little adjust with color vibrance and hue , some high pass sharpening

Comments

Author

arasteo
Theodore Arampatz...
License: Attribution-NonCommercial-NoDerivs Creative Commons
141819
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Revisions

  • M20 Trifid Nebula, 





    
        

            Theodore Arampatz...
    Original
  • M20 Trifid Nebula, 





    
        

            Theodore Arampatz...
    B
  • M20 Trifid Nebula, 





    
        

            Theodore Arampatz...
    C
  • Final
    M20 Trifid Nebula, 





    
        

            Theodore Arampatz...
    D

Sky plot

Sky plot

Histogram

M20 Trifid Nebula, 





    
        

            Theodore Arampatz...