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Gliese 849

<tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2">Astrometry</th></tr></th></tr><tr><th colspan="2" style="text-align: center"></tr><tr style="vertical-align:top;"><td>Radial velocity (Rv)</td><td>−12 ± 5 km/s</td></tr><tr style="vertical-align:top;"><td>Proper motion (μ)</td><td> RA: 1130.27 ± 2.56[1] mas/yr
Dec.: -19.27 ± 1.33[1] mas/yr </td></tr><tr style="vertical-align:top;"><td>Parallax (π)</td><td>109.94 ± 2.07[1]mas</td></tr><tr style="vertical-align:top;"><td>Distance</td><td>Lua error in Module:Math at line 495: attempt to index field 'ParserFunctions' (a nil value). ± Lua error in Module:Math at line 495: attempt to index field 'ParserFunctions' (a nil value).ly
(Lua error in Module:Math at line 495: attempt to index field 'ParserFunctions' (a nil value). ± Lua error in Module:Math at line 495: attempt to index field 'ParserFunctions' (a nil value).pc)</td></tr><tr style="vertical-align:top;"><td>Absolute magnitude (MV)</td><td>10.70</td></tr><tr><th colspan="2" style="text-align: center"></th></tr> <tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2">Details</th></tr></th></tr><tr><th colspan="2" style="text-align: center"></th></tr><tr style="vertical-align:baseline;"><td>Mass</td><td>0.36 M</td></tr><tr style="vertical-align:baseline;"><td>Radius</td><td>0.52 ± 0.07 R</td></tr><tr style="vertical-align:baseline;"><td>Luminosity</td><td>0.029 L</td></tr><tr style="vertical-align:baseline;"><td>Surface gravity (log g)</td><td>4.66 cgs</td></tr><tr style="vertical-align:baseline;"><td>Temperature</td><td>3,601 ± 19[2] K</td></tr><tr style="vertical-align:baseline;"><td>Metallicity</td><td>+0.31 ± 0.17[2]</td></tr><tr><th colspan="2" style="text-align: center"></th></tr> <tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2">Other designations</th></tr><tr><td colspan="2">
BD-05 5715, GCRV 13921, HIP 109388, LFT 1689, LHS 517, LPM 814, LTT 8889, NLTT 53078
</td></tr>

<tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2">Database references</th></tr><tr style="vertical-align: top;"><td>SIMBAD</td><td>data</tr><tr style="vertical-align: top;"><td>Exoplanet Archive</td><td>data</tr><tr><td>ARICNS</td><td>data</td></tr>

Gliese 849
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Aquarius
Right ascension 22h 9m 40.343s[1]
Declination –4° 38′ 26.62″[1]
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Characteristics
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Planet
Gliese 849b data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.) </div>

Gliese 849 is a red dwarf star approximately 29 light years away in the constellation of Aquarius.

Planetary system

In August 2006, a first long-period Jupiter-like planet was found orbiting the red dwarf at a distance of 2.35 astronomical units, taking 1890 days to orbit with a low eccentricity.[3]

The Gliese 849 planetary system[3]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b >0.82 MJ 2.35 1890 ± 130 0.06 ± 0.09
c 0.77 MJ 5.1182 7049.0 0.218

See also

References

  1. ^ a b c d e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. Bibcode:2007A&A...474..653V. arXiv:0708.1752. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. ^ a b Rojas-Ayala, Bárbara et al. (April 2012). "Metallicity and Temperature Indicators in M Dwarf K-band Spectra: Testing New and Updated Calibrations with Observations of 133 Solar Neighborhood M Dwarfs". The Astrophysical Journal 748 (2): 93. Bibcode:2012ApJ...748...93R. arXiv:1112.4567. doi:10.1088/0004-637X/748/2/93.  See table 3.
  3. ^ a b Butler, R. Paul et al. (2006). "A Long-Period Jupiter-Mass Planet Orbiting the Nearby M Dwarf GJ 849". The Astronomical Society of the Pacific 118: 1685–1689. Bibcode:2006PASP..118.1685B. arXiv:astro-ph/0610179. doi:10.1086/510500. 

External links

Coordinates: Sky map 22h 09m 40.3460s, −4° 38′ 26.624″


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