HD 17092

HD 17092
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Perseus
Right ascension 02h 46m 22.1179s[1]
Declination +49° 39′ 11.0949″[1]
Apparent magnitude (V) 7.73[2]
Characteristics
Evolutionary stage Giant[2]
Spectral type K0III[3]
B−V color index 1.247±0.014[4]
Astrometry
Radial velocity (Rv)5.49±0.03[5] km/s
Proper motion (μ) RA: 40.328±0.100[1] mas/yr
Dec.: −10.312±0.099[1] mas/yr
Parallax (π)4.3499 ± 0.0516 mas[1]
Distance750 ± 9 ly
(230 ± 3 pc)
Absolute magnitude (MV)+1.76[4]
Details[6]
Mass1.23±0.18 M
Radius12.04+0.51
−0.35
[1] R
Luminosity57±1[1] L
Surface gravity (log g)2.47±0.11 cgs
Temperature4,630±30 K
Metallicity [Fe/H]0.11±0.05 dex
Rotation505 days[4]
Rotational velocity (v sin i)<1 km/s
Age5.82±2.75 Gyr
Other designations
BD+49° 767, HD 17092, SAO 38313, PPM 45466
Database references
SIMBADdata

HD 17092 is a star in the constellation of Perseus. It has an orange hue but is visible only with binoculars or better equipment, having an apparent visual magnitude of 7.73.[2] The distance to this star is approximately 750 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +5.5 km/s.[5]

This object is an aging giant star with a stellar classification of K0III,[3] which means it has exhausted the supply of hydrogen at its core then cooled and expanded off the main sequence.[4] It is roughly six billion years old with 1.2[6] times the mass of the Sun and has expanded to 12 times the Sun's radius.[1] The star is radiating 57[1] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,630 K.[6]

  1. ^ a b c d e f g h i Cite error: The named reference Gaia DR2 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference Maldonado_et_al_2019 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Skiff2014 was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference Niedzielski2007 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Deka-Szymankiewicz_et_al_2018 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Maldonado_Villaver_2016 was invoked but never defined (see the help page).