HD 150706

HD 150706
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ursa Minor[1]
Right ascension 16h 31m 17.583s[2]
Declination +79° 47′ 23.20″[2]
Apparent magnitude (V) 7.016[3]
Characteristics
Evolutionary stage main sequence
Spectral type G0V[4]
B−V color index 0.607±0.005[1]
Astrometry
Radial velocity (Rv)−17.208±0.0009[5] km/s
Proper motion (μ) RA: 94.947 mas/yr[2]
Dec.: −86.853 mas/yr[2]
Parallax (π)35.4827 ± 0.0135 mas[2]
Distance91.92 ± 0.03 ly
(28.18 ± 0.01 pc)
Absolute magnitude (MV)4.76[1]
Details
Mass1.04+0.01
−0.04
[6] M
Radius0.96±0.02[4] R
Luminosity1.18[1] L
Surface gravity (log g)4.47±0.03[6] cgs
Temperature5,921±50[6] K
Metallicity [Fe/H]−0.07±0.04[6] dex
Rotation≈5.6 days[4]
Rotational velocity (v sin i)3.7±1.0[4] km/s
Age1.59+3.03
−0.17
[6] Gyr
Other designations
BD+80°519, GJ 632, HD 150706, HIP 80902, SAO 8557, TYC 4575-1336-1[7]
Database references
SIMBADdata

HD 150706 is a star with an orbiting exoplanet in the northern constellation of Ursa Minor. It is located 92 light years away from the Sun, based on parallax measurements. At that distance, it is not visible to the unaided eye. However, with an apparent visual magnitude of 7.02,[3] it is an easy target for binoculars. It is located only about 10° from the northern celestial pole so it is always visible in the northern hemisphere except for near the equator. Likewise, it is never visible in most of the southern hemisphere. The star is drifting closer to the Sun with a radial velocity of −17.2 km/s.[5]

The Sun-like spectrum of HD 150706 presents as a G-type main-sequence star with a stellar classification of G0V.[4] It has a similar mass, radius, and metallicity as the Sun.[4] The star is radiating 1.18[1] times the luminosity of the Sun from its photosphere at an effective temperature of 5,921 K.[6] It displays magnetic activity in its chromosphere in the form of star spots. Age estimates are poorly bounded, ranging from 1.16 up to 5.1 billion years.[4]

Based on an infrared excess, a dusty debris disk is orbiting the star. There is a hole in the center of this disk with a radius of ~20 AU. It may be kept free of dust by a planetary system.[8]

  1. ^ a b c d e Cite error: The named reference Anderson_Francis_2012 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference tycho2 was invoked but never defined (see the help page).
  4. ^ a b c d e f g Cite error: The named reference Boisse2012 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Soubiran_et_al_2018 was invoked but never defined (see the help page).
  6. ^ a b c d e f Cite error: The named reference aguilera-gomez was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Simbad was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Meyer_et_al_2004 was invoked but never defined (see the help page).