Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Getting plate-solving status, please wait...

Technical card

Imaging telescopes or lenses: 10" f/4 TS ONTC Newton

Imaging cameras: Atik383L+

Mounts: Celestron CGE

Software: Straton  ·  Pixinsight  ·  PS CS5

Filters: Astronomik OIII 12nm CCD  ·  Astronomik Ha 6nm CCD

Accessory: Pal Gyulai GPU Koma KorrectorF4  ·  Lacerta MGEN

Dates:Oct. 29, 2016Oct. 31, 2016

Astronomik Ha 6nm CCD: 14x1200" -20C bin 1x1
Astronomik OIII 12nm CCD: 13x1800" -20C bin 1x1

Integration: 11.2 hours

Darks: ~20

Flats: ~20

Bias: ~40

Avg. Moon age: 14.56 days

Avg. Moon phase: 0.95%

Temperature: 5.50

Basic astrometry details job: 1304641

RA center: 20h 9' 52"

DEC center: +36° 16' 37"

Pixel scale: 1.546 arcsec/pixel

Orientation: 196.971 degrees

Field radius: 0.644 degrees

Resolution: 2400x1800

Locations: Garden Observatory, Eggersdorf near Berlin, Germany


Wolf-Rayet stars are very hot, mass-rich and bright stars. Massive Wolf-Rayet stars have burned through their nuclear fuel at a prodigious rate and end this final phase of massive star evolution in a spectacular supernova explosion. They are shedding their outer envelopes in powerful stellar winds. At the same time their radiation is ionizing the gas and makes it glow. These beautiful figures as depicted above consist mostly of hydrogen and oxygen.Another example is the Crescent Nebula NGC 6888,also located in the constellation of Cygnus. The spectacle in the above picture is the bright, pink star at the centre of the frame (chain of 4 stars), accompanied by two blueish stars above and beneath. These stars are not related to the nebula. A closer look reveals that the arc is not only blue but pink as well. This indicates that it consists of oxygen and hydrogen gas. Also the background shows the veils of ionized hydrogen, omnipresent in the constellation of cygnus.

Distance estimates put WR 134 about 6,000 light-years away, making the frame over 200 light-years across. Wolf-Rayet stars conclude their lives in spectacular supernovae. The stellar winds and final supernovae enrich the interstellar material with heavy elements to be incorporated in future generations of stars.



Frank Iwaszkiewicz

Sky plot

Sky plot


WR 134, 


            Frank Iwaszkiewicz