HD 212301
HD 212301 is a binary star system in the south circumpolar constellation of Octans. This star is also called HIP 110852. With an apparent visual magnitude of 7.76, it is too faint to be visible to the naked eye. The system is located at a distance of 177 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +4.7 km/s. It has an absolute magnitude of 4.06.

The primary, component A, is an F-type main-sequence star with a stellar classification of F8V. It has 20% greater mass than the Sun and a 23% larger radius. Its age is about the same as the Sun and it is spinning with a projected rotational velocity of 5.4 km/s. It is a metal-rich star with 50% more metals than the Sun has. The star is radiating 1.9 times the luminosity of the Sun from its photosphere at an effective temperature of 6,169 K.

A secondary companion was announced in 2009. This faint star is located at an angular separation of to the northwest of the primary, corresponding to a projected separation of . This is a red dwarf with an estimated class of M3V and a mass equal to around 35% of the mass of the Sun. The pair share a common proper motion.

A hot jupiter candidate exoplanet was discovered orbiting the primary, based on radial velocity observations taken in 2003 and 2005.
Q50053
binary star
Concept
Q8928
constellation
Concept
Q10503
Octans
CEL
Q124313
apparent visual magnitude
Concept
Q531
light year
Concept
Q525
Sun
CEL
Q906561
parallax
Concept
Q240105
radial velocity
Concept
Q159653
absolute magnitude
Concept
Q1353952
F-type main-sequence star
Concept
Q25377588
stellar classification
Concept
Q6464
projected rotational velocity
Concept
Q217030
metals
Concept
Q843877
luminosity of the Sun
Concept
Q6372
photosphere
Concept
Q854050
effective temperature
Concept
Q1357788
angular separation
Concept
Q5571730
projected separation
UNK
Q5893
red dwarf
Concept
Q5571730
common proper motion
UNK
Q382979
hot jupiter
CEL
Q44559
exoplanet
Concept
Q130691
HD 212301
CEL
2009-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2009
DATE
2003-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2003
DATE
2005-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2005
DATE
+7.76^^http://www.w3.org/2001/XMLSchema#decimal
7.76
NUMBER
++4.7^^http://www.w3.org/2001/XMLSchema#decimal
+4.7
NUMBER
+4.06^^http://www.w3.org/2001/XMLSchema#decimal
4.06
NUMBER
+8^^http://www.w3.org/2001/XMLSchema#decimal
8
NUMBER
+20^^http://www.w3.org/2001/XMLSchema#decimal
20
NUMBER
+23^^http://www.w3.org/2001/XMLSchema#decimal
23
NUMBER
+5.4^^http://www.w3.org/2001/XMLSchema#decimal
5.4
NUMBER
+50^^http://www.w3.org/2001/XMLSchema#decimal
50
NUMBER
+1.9^^http://www.w3.org/2001/XMLSchema#decimal
1.9
NUMBER
+3^^http://www.w3.org/2001/XMLSchema#decimal
3
NUMBER
+35^^http://www.w3.org/2001/XMLSchema#decimal
35
NUMBER
constellation
apparent magnitude
instance of
instance of
subclass of