Nu Hydri
ν Hydri, Latinized as Nu Hydri, is a single star in the southern circumpolar constellation of Hydrus. It is orange-hued and faintly visible to the naked eye with an apparent visual magnitude of 4.76. This object is located approximately 331 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +3 km/s. It is a member of the Ursa Major Moving Group of stars that share a common motion through space.

This is an aging giant star with a stellar classification of K3III. With the supply of hydrogen at its core exhausted, the star has expanded and cooled. At present it has 21 times the girth of the Sun. It is 2.4 billion years old with estimates of its mass ranging from 1.8 to 3.5 times the mass of the Sun. The star is radiating 184 times the Sun's luminosity from its swollen photosphere at an effective temperature of 4,612 K.
Q466126
Latinized
ORG
Q523
star
Concept
Q1067416
circumpolar constellation
Concept
Q10416
Hydrus
CEL
Q124313
apparent visual magnitude
Concept
Q531
light year
Concept
Q906561
parallax
Concept
Q240105
radial velocity
Concept
Q1195678
Ursa Major Moving Group
CEL
Q5875
giant star
Concept
Q25377588
stellar classification
Concept
Q60790215
core
Concept
Q180892
mass of the Sun
Concept
Q843877
Sun's luminosity
Concept
Q6372
photosphere
Concept
Q854050
effective temperature
Concept
Q5175418
Nu Hydri
CEL
+4.76^^http://www.w3.org/2001/XMLSchema#decimal
4.76
NUMBER
++3^^http://www.w3.org/2001/XMLSchema#decimal
+3
NUMBER
+3^^http://www.w3.org/2001/XMLSchema#decimal
3
NUMBER
+21^^http://www.w3.org/2001/XMLSchema#decimal
21
NUMBER
+2.4^^http://www.w3.org/2001/XMLSchema#decimal
2.4
NUMBER
+1.8^^http://www.w3.org/2001/XMLSchema#decimal
1.8
NUMBER
+3.5^^http://www.w3.org/2001/XMLSchema#decimal
3.5
NUMBER
instance of
constellation
mass