Astronomy:Kepler-43
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Short description: G-type star in the constellation Cygnus
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Cygnus[1] |
| Right ascension | 19h 00m 57.8034s[2] |
| Declination | +46° 40′ 05.665″[2] |
| Apparent magnitude (V) | 13.96[3] |
| Characteristics | |
| Spectral type | G0V~G0IV[4] |
| Astrometry | |
| Proper motion (μ) | RA: −3.003±0.025[2] mas/yr Dec.: 0.193±0.026[2] mas/yr |
| Parallax (π) | 0.9653 ± 0.0139[2] mas |
| Distance | 3,380 ± 50 ly (1,040 ± 10 pc) |
| Details | |
| Mass | 1.32±0.09[3] M☉ |
| Radius | 1.42±0.07[3] R☉ |
| Luminosity | [3] L☉ |
| Surface gravity (log g) | 4.26±0.05[5] cgs |
| Temperature | 6041±123[3] K |
| Metallicity [Fe/H] | 0.33±0.11[3] dex |
| Rotation | 12.851±0.053 days[6] |
| Rotational velocity (v sin i) | 5.5±1.5[3] km/s |
| Other designations | |
Kepler-43, KOI-135, KIC 9818381 | |
| Database references | |
| SIMBAD | data |
| Extrasolar Planets Encyclopaedia | data |
| KIC | data |
Kepler-43, formerly known as KOI-135, is a star in the northern constellation of Cygnus. It is located at the celestial coordinates: Right Ascension 19h 00m 57.8034s, Declination +46° 40′ 05.665″.[7] With an apparent visual magnitude of 13.996,[3] this star is too faint to be seen with the naked eye. The Kepler-43 has a very strong starspot activity.[5]
Planetary system
The Kepler spacecraft detected a transiting planet candidate around this star that was confirmed by radial velocity measurements taken by the SOPHIE spectrograph mounted on the 1.93 m telescope at the Haute-Provence Observatory.[8]
The planet nightside temperature was measured to be 2043+79−352 K.[5]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 3.23±0.19 MJ | 0.0449 | 3.0240949±0.0000006 | — | — | — |
References
- ↑ "Cygnus – constellation boundary", The Constellations, International Astronomical Union, http://www.iau.org/public/constellations/#cyg, retrieved 2011-12-15
- ↑ 2.0 2.1 2.2 2.3 2.4 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Kepler-43b, NASA Ames Research Center, http://kepler.nasa.gov/Mission/discoveries/kepler43b/, retrieved 2011-12-06
- ↑ 4.0 4.1 Schneider, Jean, Star: Kepler-43, http://exoplanet.eu/star.php?st=Kepler-43, retrieved 2011-12-06
- ↑ 5.0 5.1 5.2 5.3 Esteves, Lisa J.; Mooij, Ernst J. W. De; Jayawardhana, Ray (2014), "Changing Phases of Alien Worlds: Probing Atmospheres Ofkeplerplanets with High-Precision Photometry", The Astrophysical Journal 804 (2): 150, doi:10.1088/0004-637X/804/2/150, Bibcode: 2015ApJ...804..150E
- ↑ McQuillan, A.; Mazeh, T.; Aigrain, S. (2013). "Stellar Rotation Periods of The Kepler objects of Interest: A Dearth of Close-In Planets Around Fast Rotators". The Astrophysical Journal Letters 775 (1): L11. doi:10.1088/2041-8205/775/1/L11. Bibcode: 2013ApJ...775L..11M.
- ↑ "Kepler Discoveries". 2011-12-05. http://kepler.nasa.gov/Mission/discoveries/.
- ↑ Bonomo, A. S. et al. (2012). "SOPHIE velocimetry of Kepler transit candidates. V. The three hot Jupiters KOI-135b, KOI-204b, and KOI-203b (alias Kepler-17b)". Astronomy and Astrophysics 538: A96. doi:10.1051/0004-6361/201118323. Bibcode: 2012A&A...538A..96B. https://www.aanda.org/articles/aa/full_html/2012/02/aa18323-11/aa18323-11.html.
Coordinates: 
19h 00m 57.810s, +46° 40′ 05.62″
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