HD 183263

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
Distance180 ± 9 ly
(55 ± 3 pc)
Absolute magnitude (MV)8.49
Details
Mass1.17 M☉
Radius1.21 R☉
Luminosity1.58 L☉
Temperature5888 K
Metallicity0.3 %
Age3.3 ± 2.5 Gyr
Other designations
HIP 95740, SAO 124664, BD+08° 4109, GSC 01055-03415, PPM 167917, TYC 1055-3415-1.
Database references
SIMBADdata
Exoplanet Archivedata
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 180 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 about 100 K.

Planetary system

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

The HD 183263 planetary system[4]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
b ≥3.635±0.034 MJ 1.486±0.023 625.10±0.34 0.3728±0.0065 — —
c ≥6.90±0.12 MJ 5.69±0.11 4684±71 0.051±0.010 — —

See also

References

  1. 1 2 3 4 5 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. CiteSeerX 10.1.1.516.6667. doi:10.1086/426384.
  3. ↑ 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.
  4. ↑ Feng, Y. Katherina; et al. (2015). "The California Planet Survey IV: A Planet Orbiting the Giant Star HD 145934 and Updates to Seven Systems with Long-period Planets". The Astrophysical Journal. 800. 22. arXiv:1501.00633. Bibcode:2015ApJ...800...22F. doi:10.1088/0004-637X/800/1/22.
  • "Image HD 183263". Simbad.

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


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.