Astro-Cooperation
|
Location/ Date: |
Bremen/Eggersdorf, GER / July/ August 2016 |
|
Telescope/ Lens: |
10" TS ONTC Newton, Takahashi FSQ85 |
|
Mount: |
Celestron CGE GPS, EQ8 |
|
Camera: |
Atik 383L+, Atik 460Exm |
|
Exposure time: |
34x1800" Astronomik [OIII] 12 nm 20x 1200" Astrodon Ha 20x 1800" Astrodon [OIII] 4x 420" Astrodon RGB each |
|
Total exposure: |
35,1 hours. |
|
Description: |
SH2-129 and Outters4 are located in about 4 degrees distance to the well known nebula IC196 in the constellation of Cepheus. The distance to Earth is about 2300 light years. SH2-129 is surrounded by a loose aggregation of bright stars ilumminating the nebula with their UV radiation. Outters 4, also called Squid Nebula due to his shape is apparently a bipolar planetary nebula created by a triple star system. Consistent with that scenario, Ou4 would represent a spectacular outflow driven by HR8119, a triple system of hot, massive stars seen near the center of the nebula. If so, the truly giant Squid Nebula would physically be nearly 50 light-years across. |
|
Image recording: |
Jens Zippel, Frank Iwaszkiewicz |
|
Image processing: |
Jens Zippel, Frank Iwaszkiewicz |