astro.wikisort.org - StarWASP-3 is a magnitude 10 yellow-white dwarf star located about 800 light-years away in the Lyra constellation.[3] It appears to be variable; it "passed from a less active (log R'_hk=-4.95) to a more active (log R'_hk=-4.8) state between 2007 and 2010".[4]
Star in the constellation Lyra
WASP-3
Observation data Epoch J2000.0 Equinox J2000.0 |
Constellation |
Lyra |
Right ascension |
18h 34m 31.6241s[1] |
Declination |
+35° 39′ 41.488″[1] |
Apparent magnitude (V) |
10.63[2] |
Characteristics |
Spectral type |
F7V[3] |
Apparent magnitude (B) |
11.07[2] |
Apparent magnitude (J) |
9.603±0.020[3] |
Apparent magnitude (H) |
9.407±0.014[3] |
Apparent magnitude (K) |
9.361±0.015[3] |
Variable type |
EP[3] |
Astrometry |
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Proper motion (μ) | RA: −4.896±1.058[1] mas/yr Dec.: −21.664±0.686[1] mas/yr |
Parallax (π) | 4.07 ± 0.32 mas[1] |
Distance | 800 ± 60 ly (250 ± 20 pc) |
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Details |
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Mass | 1.24+0.11 −0.06 M☉ |
Radius | 1.31+0.12 −0.06 R☉ |
Temperature | 6400 ± 100 K |
Metallicity | 0 (±0.2) |
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Other designations |
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TYC 2636-195-1, 2MASS J18343163+3539415, USNO-B1.0 1256-00285133, GSC 02636-00195, 1SWASP J183431.62+353941.4, V838 Lyr, 2MASS J18343163+3539415 |
Database references |
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SIMBAD | data |
Extrasolar Planets Encyclopaedia | data |
Planetary system
The extrasolar planet WASP-3b was detected by the SuperWASP project in 2007.[5]
The William Herschel Telescope had confirmed it was a planet by 2008.
In 2010, researchers proposed a second planet orbiting WASP-3.[6][7] But in 2012 this proposal was debunked.[4]
The WASP-3 planetary system
Companion (in order from star) |
Mass |
Semimajor axis (AU) |
Orbital period (days) |
Eccentricity |
Inclination |
Radius |
b |
2.06 ± 0.13 MJ |
0.0313 ± 0.0001 |
1.8468372 ± 6e-07 |
0 |
— |
— |
See also
References
- Brown, A. G. A; et al. (2016). "Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties". Astronomy and Astrophysics. 595. A2. arXiv:1609.04172. Bibcode:2016A&A...595A...2G. doi:10.1051/0004-6361/201629512. S2CID 1828208.Gaia Data Release 1 catalog entry
- Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. doi:10.1888/0333750888/2862.
- "TYC 2636-195-1". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-05-04.
- M Montalto; Gregorio, J.; Boue, G.; Mortier, A.; Boisse, I.; Oshagh, M.; Maturi, M.; Figueira, P.; Sousa, S.; Santos, N. C. (Nov 2, 2012). "A new analysis of the WASP-3 system: no evidence for an additional companion". MNRAS. 427 (4): 2757. arXiv:1211.0218. Bibcode:2012MNRAS.427.2757M. doi:10.1111/j.1365-2966.2012.21926.x. S2CID 59381004.
- Pollacco, D.; et al. (2008). "WASP-3b: a strongly irradiated transiting gas-giant planet". Monthly Notices of the Royal Astronomical Society. 385 (3): 1576–1584. arXiv:0711.0126. Bibcode:2008MNRAS.385.1576P. doi:10.1111/j.1365-2966.2008.12939.x. S2CID 2317308.
- Planet found tugging on transits Archived 2010-07-13 at the Wayback Machine, Astronomy Now, 9 July 2010
- G.Maciejewski; D.Dimitrov; R.Neuhaeuser; A.Niedzielski; St.Raetz; Ch.Ginski; Ch.Adam, C.Marka; M.Moualla; M.Mugrauer (2010). "Transit timing variation in exoplanet WASP-3b". Monthly Notices of the Royal Astronomical Society. 407 (4): 2625–2631. arXiv:1006.1348. Bibcode:2010MNRAS.407.2625M. doi:10.1111/j.1365-2966.2010.17099.x.
External links
- "WASP-3". Exoplanets. Retrieved 2009-05-04.
Constellation of Lyra |
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Stars | |
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Galaxies |
- NGC 6606
- NGC 6612
- NGC 6640
- NGC 6646
- NGC 6657
- NGC 6662
- NGC 6663
- NGC 6665
- NGC 6671
- NGC 6672
- NGC 6675
- NGC 6685
- NGC 6686
- NGC 6688
- NGC 6692
- NGC 6695
- NGC 6700
- NGC 6702
- NGC 6703
- NGC 6710
- NGC 6713
- NGC 6740
- NGC 6745
- NGC 6765
- NGC 6792
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 Category |
На других языках
[de] WASP-3
WASP-3 ist ein Gelber Zwerg im Sternbild Lyra. Er besitzt eine scheinbare Helligkeit von 10,6 mag. Im Jahre 2007 entdeckte A. Collier Cameron einen extrasolaren Planeten, der diesen Stern umkreist: WASP-3 b. Im Juli 2010 gab die Universität Jena bekannt, durch das Transit-Zeit-Variationsverfahren einen weiteren Planeten nachgewiesen zu haben. WASP-3c soll 15 Erdmassen haben und 3,75 Tage für einen Umlauf brauchen.
- [en] WASP-3
[ru] WASP-3
WASP-3 — звезда, которая находится в созвездии Лира на расстоянии приблизительно 727 световых лет от нас. Вокруг звезды обращается, как минимум, одна планета.
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