Hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Hourglass nebula  ·  IC 1274  ·  IC 1275  ·  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  ·  NGC 6568  ·  The star 11Sgr  ·  The star 14Sgr  ·  The star 4Sgr  ·  The star 7Sgr  ·  The star 9Sgr  ·  Trifid nebula
M8 M20 Widefield, 



    
        

            1074j
M8 M20 Widefield
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M8 M20 Widefield

Technical card

Imaging telescopes or lenses: Canon EF 135mm f/2.0 L

Imaging cameras: Atik 460 EX Mono

Mounts: iOptron iEQ45

Guiding telescopes or lenses: Astro-Tech AT106ED

Guiding cameras: Lodestar

Software: PHD Guiding  ·  Nebulosity  ·  Startools 1.3.5.258  ·  GIMP 2.9 GIMP 2

Filters: Astrodon LRGB CCD Imaging Filters (E-Series), Gen2  ·  Astrodon Ha 5mm

Accessory: SX USB Filter Wheel


Dates:June 17, 2014

Frames: 30x150" (1h 15')

Integration: 1h 15'

Avg. Moon age: 19.67 days

Avg. Moon phase: 75.12%


Basic astrometry details

Astrometry.net job: 308466

RA center: 18h05m26s.4

DEC center: -23°3852

Pixel scale: 7.067 arcsec/pixel

Orientation: 179.315 degrees

Field radius: 3.434 degrees


Resolution: 620x494

Description

HaRGB 1x1 binned, 5x150s RGB, 5x300s Ha. Canon L 135mm lens at f/2. I tried not to blow out the center of M8, which is quite easy to do. I tried to retain as much detail as possible around the center. There are certainly some very nice recent imagery of this area by others and I see that I don't have nearly enough blue around the Trifid and in other areas.

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M8 M20 Widefield, 



    
        

            1074j