Simeis 147

Simeis 147
The supernova remnant nebula from Simeis 147 or the Spaghetti Nebula.
Observation data (Epoch J2000)
Supernova type	Unknown
Remnant type	Mixed-morphology
Host galaxy	Milky way
Constellation	Taurus
Right ascension	05^h 39^m 06^s
Declination	+27° 59′ 55″
Galactic coordinates	Unknown
Discovery date	1952[1]
Peak magnitude (V)	6.5
Distance	3,000 light-years (0.92 kpc)
Physical characteristics
Progenitor	Unknown
Progenitor type	Unknown
Colour (B-V)	Unknown

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]

References

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. "Astronomy Picture of the Day". NASA. 9 October 2012.
4. "SIMBAD query result". Centre de Données astronomiques de Strasbourg. 20 December 2013.

External links

• VizieR Query
• SIMBAD Query

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