PSR B0329 54
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PSR B0329+54 is a
pulsar A pulsar (''pulsating star, on the model of quasar'') is a highly magnetized rotating neutron star that emits beams of electromagnetic radiation out of its Poles of astronomical bodies#Magnetic poles, magnetic poles. This radiation can be obse ...
approximately 5,300
light-year A light-year, alternatively spelled light year (ly or lyr), is a unit of length used to express astronomical distances and is equal to exactly , which is approximately 9.46 trillion km or 5.88 trillion mi. As defined by the International Astr ...
s away in the
constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The first constellati ...
of
Camelopardalis Camelopardalis is a large but faint constellation of the northern sky representing a giraffe. The constellation was introduced in 1612 or 1613 by Petrus Plancius. Some older astronomy books give Camelopardalus or Camelopardus as alternative form ...
. It completes one rotation every 0.714
second The second (symbol: s) is a unit of time derived from the division of the day first into 24 hours, then to 60 minutes, and finally to 60 seconds each (24 × 60 × 60 = 86400). The current and formal definition in the International System of U ...
s and is approximately 5 million years old. The emissions of this pulsar and the
Vela Pulsar The Vela Pulsar (PSR J0835-4510 or PSR B0833-45) is a radio, optical, X-ray- and Gamma ray, gamma-emitting pulsar associated with the Vela Supernova Remnant in the constellation of Vela (constellation), Vela. Its parent Type II supernova ...
were converted into audible sound by the French composer
Gérard Grisey Gérard Henri Grisey (; ; 17 June 1946 – 11 November 1998) was a twentieth-century French composer of contemporary classical music. His work is often associated with the Spectralist Movement in music, of which he was a major pioneer. Biograp ...
, and used as such in the piece ''Le noir de l'étoile'' (1989–90).


Planetary system

In 1979 and 1994, two
exoplanet An exoplanet or extrasolar planet is a planet outside the Solar System. The first confirmed detection of an exoplanet was in 1992 around a pulsar, and the first detection around a main-sequence star was in 1995. A different planet, first det ...
s were reported to be orbiting the pulsar (being classified as
pulsar planet Pulsar planets are planets that are orbiting pulsars. The first such planets to be discovered were around a millisecond pulsar in 1992 and were the first extrasolar planets to be confirmed as discovered. Pulsars are extremely precise clocks and ...
s). Later observations did not support this conclusion. More recently, a 2017 analysis indicated that a different long-period pulsar planet remains a possibility, but this was subsequently challenged as well. , the existence of any planet around this pulsar remains in doubt.


See also

*
PSR B1257+12 PSR B1257+12, alternatively designated PSR J1300+1240, is a millisecond pulsar, from the Sun, in the constellation Virgo, rotating at about 161 times per second (faster than the blade of a blender). It is also named Lich, after a powerf ...
* PSR J1719-1438


References

Pulsars Camelopardalis Hypothetical planetary systems J03325936+5434448 {{var-star-stub