Simeis 147

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Simeis 147
Simeis 147
The supernova remnant nebula from Simeis 147 or the Spaghetti Nebula.
Event typeSupernova remnant edit this on wikidata
Spectral classUnknown
InstrumentCrimean Astrophysical Observatory Edit this on Wikidata
Right ascension 05h 39m 06s
Declination+27° 59′ 55″
Galactic coordinatesUnknown
Distance3,000 light-years (0.92 kpc)
HostMilky way
Progenitor typeUnknown
Colour (B-V)Unknown
Peak apparent magnitude6.5
Commons page Related media on Wikimedia Commons

Simeis 147, also known as the Spaghetti Nebula, SNR G180.0-01.7 or Sharpless 2-240, is a supernova remnant (SNR) in the Milky Way, straddling the border between the constellations Auriga and Taurus. Discovered in 1952 at the Crimean Astrophysical Observatory using a 25-inch Schmidt-Cassegrain telescope, it is difficult to observe due to its extremely low brightness.

The nebulous area is fairly large with an almost spherical shell and filamentary structure.[2] The remnant has an apparent diameter of approximately 3 degrees, an estimated distance of approximately 3000 (±350) light-years, and an age of approximately 40,000 years.[3]

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.[4]


  1. ^ "Simeis 147, Supernova Remnant in Taurus". AstroPix. 28 February 2013.
  2. ^ "VizieR query result". Centre de Données astronomiques de Strasbourg. 20 December 2013.
  3. ^ Nemiroff, R.; Bonnell, J., eds. (9 October 2012). "Simeis 147: Supernova Remnant". Astronomy Picture of the Day. NASA.
  4. ^ "SNR G180.0-01.7". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 20 December 2013.

External links[edit]

Coordinates: Sky map 05h 41m 00s, +28° 06′ 13″