Observation by Ian Sharp: Messier 20 by Ian Sharp

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Observer

Ian Sharp

Observed

2014 Jul 07 - 13:31

Uploaded

2014 Jul 07 - 13:37

Objects

The Trifid Nebula (M20)

Equipment
  • Apogee F16M-D9
Location

SSO Australia

Target name

Trifid Nebula

Title

Messier 20 by Ian Sharp

About this image

This image of the "Trifid" is an (Ha+L), (Ha+R) GB image as Ian combined 10 hours of H-alpha data into the mix.  The channel information (all binned 1x1) is as follows:

R: 23 x 900s = 5.75 hours
G: 25 x 900s = 6.25 hours
B: 27 x 900s = 6.75 hours
L: 33 x 900s = 8.25 hours
Ha: 20 x 1800s = 10 hours

The details of the equipment (at SSO, Australia) used to take this are as follows:

Optical Tube Assembly RCOS 12.5” F/9 (2857mm focal length) Carbon-Fibre Tube w/TCC2, PIR and FFC
Equatorial Mount Bisque Paramount ME
Imaging Camera Apogee F16M-D9 (KAF-16803) with 7 slot filter wheel
Imaging Camera Filters Astrodon Series II L,R,G,B, Ha (5nm), OIII (3nm) and SII (3nm)
Guide Camera MMOAG with SBIG ST-402ME
The system delivers a 44x44 arcmin FoV operating at .65 arcsec/pixel

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