| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| 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 mas [2] |
| 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 | |
| Database references | |
| SIMBAD | 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, retrieved 2011-12-15
- ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv: 1804.09365. Bibcode: 2018A&A...616A...1G. doi: 10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ a b c d e f g h Kepler-43b, NASA Ames Research Center, archived from the original on 2015-09-14, retrieved 2011-12-06
- ^ a b Schneider, Jean, "Star: Kepler-43", Extrasolar Planets Encyclopaedia, archived from the original on 2014-03-04, retrieved 2011-12-06
- ^ a b c d 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, arXiv: 1407.2245, Bibcode: 2015ApJ...804..150E, doi: 10.1088/0004-637X/804/2/150, S2CID 117798959
- ^ 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. arXiv: 1308.1845. Bibcode: 2013ApJ...775L..11M. doi: 10.1088/2041-8205/775/1/L11. S2CID 118557681.
- ^ "Kepler Discoveries". 2011-12-05. Archived from the original on 2010-05-27.
- ^ 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. arXiv: 1110.5462. Bibcode: 2012A&A...538A..96B. doi: 10.1051/0004-6361/201118323. S2CID 118528032.