HD 183263

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HD 183263
Observation data
Epoch J2000      Equinox J2000
Constellation Aquila
Right ascension 19h 28m 24.57s[1]
Declination +08° 21′ 29.0″[1]
Apparent magnitude (V) 7.86
Characteristics
Spectral type G2IV
B−V color index 0.678 ± 0.012
Astrometry
Radial velocity (Rv) −50.7 km/s
Proper motion (μ) RA: −19.08 ± 1.01[1] mas/yr
Dec.: −32.97 ± 0.62[1] mas/yr
Parallax (π) 18.15 ± 0.93[1] mas
Distance 180 ± 9 ly
(55 ± 3 pc)
Absolute magnitude (MV) 8.49
Details
Mass 1.17 M
Radius 1.21 R
Luminosity 1.58 L
Temperature 5888 K
Metallicity 0.3 %
Age 3.3 ± 2.5 Gyr
Other designations
HIP 95740, SAO 124664, BD+08° 4109, GSC 01055-03415, PPM 167917, TYC 1055-3415-1.
Database references
SIMBAD data
Exoplanet Archive data
Extrasolar Planets
Encyclopaedia
data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

HD 183263 is an 8th magnitude subgiant star located approximately 172 light-years away in the constellation Aquila. This star is about to or already ran out of hydrogen fuel and eventually becomes a red giant and then dies as a white dwarf. It has absolute magnitude (apparent magnitude at 10 pc) of 4.25 compared to the Sun’s 4.83, which indicates the star is more luminous than our Sun, and therefore hotter by 103 K.

The star has two planets. Planet b was discovered in 2005[2] while planet c was discovered in 2008.[3]

The HD 183263 planetary system[3]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥ 3.73 ± 0.31 MJ 1.508 ± 0.087 624.8 ± 1.2 0.378 ± 0.011
c ≥ 3.57 ± 0.55 MJ 4.35 ± 0.28 2070 ± 110 0.253 ± 0.076

See also[edit]

References[edit]

  1. ^ a b c d e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. ^ Marcy, Geoffrey W. et al. (2005). "Five New Extrasolar Planets". The Astrophysical Journal 619 (1): 570–584. Bibcode:2005ApJ...619..570M. doi:10.1086/426384. 
  3. ^ a b Wright, J. T. et al. (2009). "Ten New and Updated Multi-planet Systems, and a Survey of Exoplanetary Systems". The Astrophysical Journal 693 (2): 1084–1099. arXiv:0812.1582. Bibcode:2009ApJ...693.1084W. doi:10.1088/0004-637X/693/2/1084. 

External links[edit]

Coordinates: Sky map 19h 28m 24.5727s, +08° 21′ 28.995″