Simeis 147

Simeis 147
An unknown wavelength image of the supernova remnant nebula from Simeis 147.
Observation data (Epoch J2000)
Supernova type	Unknown
Remnant type	Mixed-morphology
Host galaxy	Unknown
Constellation	Taurus
Right ascension	05h 39m 06s
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) that may have occurred in the Milky Way, on the constellation borders of Auriga and Taurus. Discovered in 1952 at the Crimean 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.^[2] 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.^[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

External links

• VizieR Query
• SIMBAD Query

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