PSR B1257+12 C
PSR B1257+12 C, alternatively designated PSR B1257+12 d and also named Phobetor, is a super-Earth exoplanet orbiting the pulsar PSR B1257+12 approximately 2,315 light-years (710 parsecs, or nearly km) away from Earth in the constellation of Virgo. It was one of the first planets ever discovered outside the Solar System. It was discovered using the pulsar timing method, where the regular pulses of a pulsar are measured to determine if there is a planet causing variations in the data.

In July 2014 the International Astronomical Union launched a process for giving proper names to certain exoplanets and their host stars. The process involved public nomination and voting for the new names. In December 2015, the IAU announced the winning name was Phobetor for this planet. The winning name was submitted by the Planetarium Südtirol Alto Adige in Karneid, Italy. Phobetor is, in Ovid's "Metamorphoses", one of the thousand sons of Somnus (Sleep) who appears in dreams in the form of beasts.
Q327757
super-Earth
CEL
Q44559
exoplanet
Concept
Q4360
pulsar
Concept
Q528
PSR B1257+12
CEL
Q531
light-year
Concept
Q12129
parsec
Concept
Q828224
km
Concept
Q2
Earth
CEL
Q8928
constellation
Concept
Q8842
Virgo
CEL
Q544
Solar System
Concept
None
pulsar timing method
UNK
Q6867
International Astronomical Union
ORG
Q377980
Karneid
LOC
Q38
Italy
LOC
Q1133738
Phobetor
MISC
Q7198
Ovid
PER
Q184742
Metamorphoses
ORG
Q21030618
Somnus
MISC
Q74181
PSR B1257+12 C
CEL
2014-07-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
July 2014
DATE
2015-12-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
December 2015
DATE
+1257^^http://www.w3.org/2001/XMLSchema#decimal
1257
NUMBER
++12^^http://www.w3.org/2001/XMLSchema#decimal
+12
NUMBER
+1257^^http://www.w3.org/2001/XMLSchema#decimal
1257
NUMBER
++12^^http://www.w3.org/2001/XMLSchema#decimal
+12
NUMBER
+1257^^http://www.w3.org/2001/XMLSchema#decimal
1257
NUMBER
++12^^http://www.w3.org/2001/XMLSchema#decimal
+12
NUMBER
+710^^http://www.w3.org/2001/XMLSchema#decimal
710
NUMBER
instance of
parent astronomical body
constellation
subclass of
instance of
constellation
instance of
country
notable work
author