HD 91324
HD 91324 is a likely binary star system in the southern constellation of Vela. It is visible to the naked eye with an apparent visual magnitude of 4.89. The distance to HD 91324, as determined from its annual parallax shift of , is 71.5 light years. It is moving further from the Earth with a heliocentric radial velocity of +21 km/s.

The primary, component A, is a metal-deficient F-type main-sequence star with a stellar classification of , where the suffix notation indicates underabundances of iron and methine in its spectrum. It is around 3.5 billion years old and is spinning with a projected rotational velocity of 9 km/s. The star has 1.18 times the mass of the Sun and 1.86 times the Sun's radius. It is radiating 4.55 times the Sun's luminosity from its photosphere at an effective temperature of 6,127 K.

A faint star designated 2MASS J10313234–5338010 was found to be a possible companion to HD 91324 through a proper motion study combining data from the Two Micron All-Sky Survey and the WISE space telescope. The projected separation of the two components is , or . Proper motion measurements for the two stars are almost identical making HD 91324 a likely binary star system. The photometry of 2MASS J10313234–5338010 is consistent with it being a red dwarf of spectral type M5 or M6.
Q523
star
Concept
Q8928
constellation
Concept
Q10521
Vela
CEL
Q124313
apparent visual magnitude
Concept
Q906561
parallax shift
Concept
Q531
light year
Concept
Q240105
radial velocity
Concept
Q217030
metal-deficient
Concept
Q1353952
F-type main-sequence star
Concept
Q25377588
stellar classification
Concept
Q898764
methine
Concept
Q752171
spectrum
Concept
Q6464
projected rotational velocity
Concept
Q180892
mass of the Sun
Concept
Q48440
Sun's radius
Concept
Q843877
Sun's luminosity
Concept
Q6372
photosphere
Concept
Q854050
effective temperature
Concept
Q193223
proper motion
Concept
Q1454942
Two Micron All-Sky Survey
DIS
Q693552
WISE space telescope
MISC
Q5571730
projected separation
UNK
Q193223
Proper motion
Concept
Q50053
binary star
Concept
Q1073340
photometry
Concept
Q5893
red dwarf
Concept
Q25377588
spectral type
Concept
Q3781905
HD 91324
CEL
Q3781905
HD 91324
CEL
Q3781905
HD 91324
CEL
Q3781905
HD 91324
CEL
+4.89^^http://www.w3.org/2001/XMLSchema#decimal
4.89
NUMBER
+71.5^^http://www.w3.org/2001/XMLSchema#decimal
71.5
NUMBER
++21^^http://www.w3.org/2001/XMLSchema#decimal
+21
NUMBER
+3.5^^http://www.w3.org/2001/XMLSchema#decimal
3.5
NUMBER
+9^^http://www.w3.org/2001/XMLSchema#decimal
9
NUMBER
+1.18^^http://www.w3.org/2001/XMLSchema#decimal
1.18
NUMBER
+1.86^^http://www.w3.org/2001/XMLSchema#decimal
1.86
NUMBER
+4.55^^http://www.w3.org/2001/XMLSchema#decimal
4.55
NUMBER
+2^^http://www.w3.org/2001/XMLSchema#decimal
2
NUMBER
+10313234^^http://www.w3.org/2001/XMLSchema#decimal
10313234
NUMBER
+5338010^^http://www.w3.org/2001/XMLSchema#decimal
5338010
NUMBER
+2^^http://www.w3.org/2001/XMLSchema#decimal
2
NUMBER
+10313234^^http://www.w3.org/2001/XMLSchema#decimal
10313234
NUMBER
+5338010^^http://www.w3.org/2001/XMLSchema#decimal
5338010
NUMBER
+5^^http://www.w3.org/2001/XMLSchema#decimal
5
NUMBER
+6^^http://www.w3.org/2001/XMLSchema#decimal
6
NUMBER
instance of
constellation
apparent magnitude
instance of