β Ceti

Location of β Ceti (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Cetus
Right ascension 00
Declination –17° 59′ 11.7827″
Apparent magnitude (V) 2.02
Characteristics
Spectral type K0 III
U−B color index +0.88
B−V color index +1.01
Variable type Rotationally
Astrometry
Radial velocity (Rv) +12.9 km/s
Proper motion (μ) RA: +232.55 mas/yr
Parallax (π) 33.86 ± 0.16mas
Distance 96.3 ± 0.5 ly
(29.5 ± 0.1 pc)
Absolute magnitude (MV) –0.13
Details
Mass 2.8M
Radius 16.78 ± 0.25R
Luminosity 139.1 ± 7.0L
Surface gravity (log g) 2.7
Temperature 4,797K
Metallicity [Fe/H] –0.09dex
Rotational velocity (v sin i) 18 km/s
Age > 1Gyr
Other designations
Deneb Kaitos, Diphda, Difda al Thani, Rana Secunda, 16 Cet, BD–18 115, GCTP 134.00, Gl 31, HD 4128, HIP 3419, HR 188, SAO 147420.
Database references
SIMBAD data
ARICNS data

Get more info about Diphda in Wikipedia

This article uses material from the Wikipedia article
Diphda, which is released under the Creative Commons Attribution-Share-Alike License 3.0