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Technical card

Dates:Aug. 31, 2019

Astrodon Tru-Balance LRGB E-Series Gen 2 Blue: 24x1200" bin 1x1
Astrodon Tru-Balance LRGB E-Series Gen 2 Green: 24x1200" bin 1x1
Ha 3nm: 21x1200" bin 1x1
Astrodon OIII 3nm: 21x1200" bin 1x1
Astrodon Tru-Balance LRGB E-Series Gen 2 Red: 24x300" bin 1x1

Integration: 32.0 hours

Avg. Moon age: 1.26 days

Avg. Moon phase: 1.77%

Basic astrometry details job: 3246181

RA center: 20h 9' 55"

DEC center: +36° 7' 26"

Pixel scale: 0.743 arcsec/pixel

Orientation: 269.572 degrees

Field radius: 0.443 degrees

Resolution: 3346x2685

Locations: E-EyE, Fregenal de la Sierra, Extremadura, Spain

Data source: Own remote observatory

Remote source: e-EyE Extremadura


Wolf-Rayet stars are large, luminous stars that burn through their fuel in a relatively short period of time (millions rather than billions of years). Such stars end their lives in a supernova explosion. They were first reported by the French astronomers Charles Wolf (1827 – 1918) and Georges Rayet (1839 – 1906).

Wolf-Rayet 134 is located around 6,000 light years distant in the constellation of Cygnus. Surrounding the star is a ring-like structure consisting of ionized hydrogen and oxygen gasses. This image consists of data collected from 3nm Ha and OIII filters along with RGB data, shot primarily for star colour.

Data for this image were collected between 5 and 31 August 2019 from an imaging rig in Spain that is privately-owned and remotely-operated by Barry Wilson and me.

Capture details are as follows:

Telescope: TEC 140
Camera: QSI 690
Filters: Astrodon
Mount: 10 Micron GM2000HPS

Ha: 21 x 1200s
OIII: 21 x 1200s
Red: 24 x 300s
Green: 24 x 300s
Blue: 24 x 300s

A total of 20 hours exposure.

Data capture: Steve Milne & Barry Wilson
Image Processing: Steve Milne



Steve Milne


Sky plot

Sky plot


Wolf-Rayet Star 134 In Cygnus, 


            Steve Milne