Daily Archives: September 15, 2014

Simeis 147

Simeis 147
, also known as the Spaghetti NebulaSNR G180.0-01.7 or Sharpless 2-240, is a supernova remnant (SNR) that may have occurred in the Milky Way, on the constellation borders of Auriga and Taurus. Discovered in 1952 at theCrimean Astrophysical Observatory using a 25 inch Schmidt-Cassegrain telescope, it is a very difficult object to observe due to its extreme low brightness.
The nebulous area is fairly large with an almost spherical shell and filamentary structure. The remnant has an apparent diameter that covers approximately 3°, an estimated distance of approximately 3000 (±350)ly away and an age of approximately 40,000y old.
It is believed that after its stellar explosion a rapidly spinning neutron star known as pulsar PSR J0538+2817 was left behind in the nebula core, emitting a strong radio signal.

Imaging telescopes or lenses: Takahashi FSQ 106ED
Imaging cameras: SBIG STL-11000
Mounts: Losmandy G11
Guiding telescopes or lenses: Orion ShortTube 80 f/5
Guiding cameras: Orion Star Shoot Planetary Imager & Autoguider
Focal reducers: Takahashi 0.75x FSQ
Filters: Astrodon Red, Astrodon G, Astrodon Filter: Blue, Astrodon h-Alpha
Dates: Jan. 1, 2014
Astrodon G: 8×600″ -25C bin 1×1
Astrodon h-Alpha: 8×1200″ -25C bin 1×1
Astrodon h-Alpha: 8×900″ -25C bin 1×1
Astrodon Filter: Blue: 8×600″ -25C bin 1×1
Astrodon Red: 8×600″ -25C bin 1×1
Integration: 8.7 hours
Darks: ~3
Flats: ~3
Flat darks: ~3
Bias: ~3

Author: Maurizio Cabibbo
AstroPhotography of the day by SPONLI 15 Sep 2014