Hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Hourglass nebula  ·  Lagoon nebula  ·  M 20  ·  M 8  ·  NGC 6514  ·  NGC 6523  ·  NGC 6526  ·  NGC 6530  ·  NGC 6544  ·  NGC 6546  ·  The star 7Sgr  ·  The star 9Sgr  ·  Trifid nebula
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M8 & M20 - The Lagoon and Trifid Nebulae (Ha-RGB), 



    
        

            Olivier Ravayrol
M8 & M20 - The Lagoon and Trifid Nebulae (Ha-RGB)
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M8 & M20 - The Lagoon and Trifid Nebulae (Ha-RGB)

Getting plate-solving status, please wait...
M8 & M20 - The Lagoon and Trifid Nebulae (Ha-RGB), 



    
        

            Olivier Ravayrol
M8 & M20 - The Lagoon and Trifid Nebulae (Ha-RGB)
Powered byPixInsight

M8 & M20 - The Lagoon and Trifid Nebulae (Ha-RGB)

Technical card

Imaging telescopes or lenses: Skywatcher 80ED black diamond 600/80 (F7,5)

Imaging cameras: Canon 450D modifié Astrodon

Mounts: Orion Sirius EQ-G (HEQ5) - belt mod

Guiding telescopes or lenses: Orion Short Tube 80/400

Guiding cameras: iNova PL1-M

Focal reducers: Televue .8 Reduce/flattener for TV-85

Software: Adobe Phosotshop CS5  ·  Adobe Lightroom 5.4

Filters: Astronomik CCD CLS Canon EOS Clip  ·  Astronomik CCD Ha 12nm Canon EOS Clip

Accessory: Lacerta Flatfieldbox 290mm  ·  Pierro-Astro Masques de BAHTINOV  ·  Pierro-Astro USB autoguider


Dates:Aug. 19, 2015Aug. 21, 2017Aug. 15, 2018

Frames:
Astronomik CCD CLS Canon EOS Clip: 11x240" (44') ISO800 bin 1x1
Astronomik CCD Ha 12nm Canon EOS Clip: 24x360" (2h 24') ISO800 bin 1x1

Integration: 3h 8'

Darks: 3

Flats: 18

Bias: 100

Avg. Moon age: 12.73 days

Avg. Moon phase: 14.06%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 3250398

RA center: 18h 4' 18"

DEC center: -23° 58' 15"

Pixel scale: 2.256 arcsec/pixel

Orientation: 268.925 degrees

Field radius: 1.561 degrees


Resolution: 4218x2647

Locations: Observatoire personnel, Tournefeuille, Haute-Garonne, France

Data source: Own remote observatory

Description

HaGB-RGB

Luminance with Ha filter narrow band 12nm + G&B colors layers

2h24mn Ha & 44mn RGB total exposure time at 800 iso (Tournefeuille, France)

600/80 mm Refractor – 450D EOS filter removed - Ha & CLS filters

Preprocessing with IRIS (Christian Buil software)

Image processing with Photoshop

Final touch with Lightroom

Comments