Gamma Draconis

Location of γ Draconis (circled) near the center
Observation data
Epoch J2000      Equinox J2000
Constellation Draco
Right ascension 17
Declination 51° 29′ 20.0242″
Apparent magnitude (V) 2.3617
Characteristics
Spectral type K5 III
U−B color index +1.87
B−V color index +1.52
Astrometry
Radial velocity (Rv) –28.19 ± 0.36 km/s
Proper motion (μ) RA: –8.48 mas/yr
Parallax (π) 21.14 ± 0.10mas
Distance 154.3 ± 0.7 ly
(47.3 ± 0.2 pc)
Absolute magnitude (MV) −1.93 ± 0.07
Details
Mass 1.72M
Radius 48.15 ± 1.09R
Luminosity 471 ± 30L
Surface gravity (log g) 1.55
Temperature 3,930K
Metallicity [Fe/H] –0.14dex
Rotational velocity (v sin i) 6.0 km/s
Other designations
Etamin, Etanin, Ettanin, Rastaban, Rasaben, Zenith star, 33 Draconis, BD +51°2282, FK5 676, HD 164058, HIP 87833, HR 6705, SAO 30653.
Database references
SIMBAD data

Get more info about Etamin in Wikipedia

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