01h25m 37.23270s[1]
−14° 35′ 55.6414″[1]
4.907[2]
Characteristics
K2+ III–IIIb CN0.5[3]
U−B color index
+1.26[4]
B−V color index
+1.231±0.009[5]
Radial velocity (Rv)
−22.6±0.7[6] km/s
Proper motion (μ)
RA: +44.670[1] mas/yr
Dec.: −17.216[1] mas/yr
Parallax (π)
Absolute magnitude (MV)
+0.19[5]
Details
Surface gravity (log g)
Metallicity [Fe/H]
Rotational velocity (v sin i)
0.0[8] km/s
Database references
46 Ceti is a single[10] star in the equatorial constellationofCetus. It is visible to the naked eye with an apparent visual magnitude of 4.9.[11] The distance to this star, as determined from an annual parallax shiftof11.9 mas,[1] is about 273 light years. It is moving closer to the Earth with a heliocentric radial velocity of −23 km/s,[6] and is expected to come as close as 184 light-years in 2.2 million years.[5]
At the age of about four billion years,[7] this is an evolved K-type giant star with a stellar classificationofK2+ III–IIIb CN0.5.[3] The suffix notation CN0.5 indicates a mild overabundance of cyanogen in the stellar atmosphere. It has 1.38[7] times the mass of the Sun and has expanded to 19[8] times the Sun's radius. The star is radiating 132[7] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,316 K.[7] The projected rotational velocity is too small to be measured.[8]
Other
Other
