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Coordinates: Sky map 18h 34m 31.6249s, +35° 39′ 41.546″
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| access-date=2009-05-04 }}</ref> 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".<ref name=Montalto>{{cite journal |
| access-date=2009-05-04 }}</ref> 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".<ref name=Montalto>{{cite journal |
title=A new analysis of the WASP-3 system: no evidence for an additional companion|date=Nov 2, 2012|author= M Montalto|arxiv=1211.0218
title=A new analysis of the WASP-3 system: no evidence for an additional companion|date=Nov 2, 2012|author= M Montalto|arxiv=1211.0218
|journal=MNRAS|volume=427|issue=4|pages=2757|bibcode = 2012MNRAS.427.2757M |doi = 10.1111/j.1365-2966.2012.21926.x |last2=Gregorio|first2=J.|last3=Boue|first3=G.|last4=Mortier|first4=A.|last5=Boisse|first5=I.|last6=Oshagh|first6=M.|last7=Maturi|first7=M.|last8=Figueira|first8=P.|last9=Sousa|first9=S.|last10=Santos|first10=N. C.|s2cid=59381004}}</ref>
|journal=MNRAS|volume=427|issue=4|pages=2757|bibcode = 2012MNRAS.427.2757M |doi = 10.1111/j.1365-2966.2012.21926.x |last2=Gregorio|first2=J.|last3=Boue|first3=G.|last4=Mortier|first4=A.|last5=Boisse|first5=I.|last6=Oshagh|first6=M.|last7=Maturi|first7=M.|last8=Figueira|first8=P.|last9=Sousa|first9=S.|last10=Santos|first10=N. C.|doi-access=free |s2cid=59381004}}</ref>


==Planetary system==
==Planetary system==
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The [[William Herschel Telescope]] had confirmed it was a planet by 2008.
The [[William Herschel Telescope]] had confirmed it was a planet by 2008.


In 2010, researchers proposed a second planet orbiting WASP-3.<ref>[http://www.astronomynow.com/news/n1007/09exo/ Planet found tugging on transits] {{webarchive|url=https://web.archive.org/web/20100713155937/http://www.astronomynow.com/news/n1007/09exo/ |date=2010-07-13 }}, Astronomy Now, 9 July 2010</ref><ref>{{cite journal|arxiv=1006.1348|author=G.Maciejewski|author2=D.Dimitrov|author3=R.Neuhaeuser|author4=A.Niedzielski|author5=St.Raetz|author6=Ch.Ginski|author7=Ch.Adam, C.Marka|author8=M.Moualla|author9=M.Mugrauer|title=Transit timing variation in exoplanet WASP-3b|date=2010|doi=10.1111/j.1365-2966.2010.17099.x|bibcode=2010MNRAS.407.2625M|volume=407|issue=4|journal=Monthly Notices of the Royal Astronomical Society|pages=2625–2631|s2cid=120998224 }}</ref> But in 2012 this proposal was debunked.<ref name=Montalto/>
In 2010, researchers proposed a second planet orbiting WASP-3.<ref>[http://www.astronomynow.com/news/n1007/09exo/ Planet found tugging on transits] {{webarchive|url=https://web.archive.org/web/20100713155937/http://www.astronomynow.com/news/n1007/09exo/ |date=2010-07-13 }}, Astronomy Now, 9 July 2010</ref><ref>{{cite journal|arxiv=1006.1348|author=G.Maciejewski|author2=D.Dimitrov|author3=R.Neuhaeuser|author4=A.Niedzielski|author5=St.Raetz|author6=Ch.Ginski|author7=Ch.Adam, C.Marka|author8=M.Moualla|author9=M.Mugrauer|title=Transit timing variation in exoplanet WASP-3b|date=2010|doi=10.1111/j.1365-2966.2010.17099.x|bibcode=2010MNRAS.407.2625M|volume=407|issue=4|journal=Monthly Notices of the Royal Astronomical Society|pages=2625–2631|doi-access=free |s2cid=120998224 }}</ref> But in 2012 this proposal was debunked.<ref name=Montalto/>


{{OrbitboxPlanet begin}}
{{OrbitboxPlanet begin}}
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<ref name="Gaia2016">{{cite journal | title=Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties | url=https://www.aanda.org/articles/aa/full_html/2016/11/aa29512-16/aa29512-16.html | journal=Astronomy and Astrophysics | volume=595 | at=A2 | year=2016 | last1=Brown | first1=A. G. A | last2=Vallenari | first2=A | last3=Prusti | first3=T | last4=De Bruijne | first4=J. H.J | last5=Mignard | first5=F | last6=Drimmel | first6=R | last7=Babusiaux | first7=C | last8=Bailer-Jones | first8=C. A.L | last9=Bastian | first9=U | last10=Biermann | first10=M | last11=Evans | first11=D. W | last12=Eyer | first12=L | last13=Jansen | first13=F | last14=Jordi | first14=C | last15=Katz | first15=D | last16=Klioner | first16=S. A | last17=Lammers | first17=U | last18=Lindegren | first18=L | last19=Luri | first19=X | last20=o'Mullane | first20=W | last21=Panem | first21=C | last22=Pourbaix | first22=D | last23=Randich | first23=S | last24=Sartoretti | first24=P | last25=Siddiqui | first25=H. I | last26=Soubiran | first26=C | last27=Valette | first27=V | last28=Van Leeuwen | first28=F | last29=Walton | first29=N. A | last30=Aerts | first30=C | display-authors=1 | arxiv=1609.04172 | bibcode=2016A&A...595A...2G | doi=10.1051/0004-6361/201629512 | s2cid=1828208 }}[http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/337/tgas&recno=607604 Gaia Data Release 1 catalog entry]</ref>
<ref name="Gaia2016">{{cite journal | title=Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties | url=https://www.aanda.org/articles/aa/full_html/2016/11/aa29512-16/aa29512-16.html | journal=Astronomy and Astrophysics | volume=595 | at=A2 | year=2016 | last1=Brown | first1=A. G. A | last2=Vallenari | first2=A | last3=Prusti | first3=T | last4=De Bruijne | first4=J. H.J | last5=Mignard | first5=F | last6=Drimmel | first6=R | last7=Babusiaux | first7=C | last8=Bailer-Jones | first8=C. A.L | last9=Bastian | first9=U | last10=Biermann | first10=M | last11=Evans | first11=D. W | last12=Eyer | first12=L | last13=Jansen | first13=F | last14=Jordi | first14=C | last15=Katz | first15=D | last16=Klioner | first16=S. A | last17=Lammers | first17=U | last18=Lindegren | first18=L | last19=Luri | first19=X | last20=o'Mullane | first20=W | last21=Panem | first21=C | last22=Pourbaix | first22=D | last23=Randich | first23=S | last24=Sartoretti | first24=P | last25=Siddiqui | first25=H. I | last26=Soubiran | first26=C | last27=Valette | first27=V | last28=Van Leeuwen | first28=F | last29=Walton | first29=N. A | last30=Aerts | first30=C | display-authors=1 | arxiv=1609.04172 | bibcode=2016A&A...595A...2G | doi=10.1051/0004-6361/201629512 | s2cid=1828208 }}[http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/337/tgas&recno=607604 Gaia Data Release 1 catalog entry]</ref>


<ref name="Pollacco2008">{{cite journal | title=WASP-3b: a strongly irradiated transiting gas-giant planet | url=https://academic.oup.com/mnras/article/385/3/1576/1013033 | last1=Pollacco | first1=D. | last2=Skillen | first2=I. | last3=Collier Cameron | first3=A. | last4=Loeillet | first4=B. | last5=Stempels | first5=H. C. | last6=Bouchy | first6=F. | last7=Gibson | first7=N. P. | last8=Hebb| first8=L.| last9=Hébrard| first9=G.| last10=Joshi| first10=Y. C.| last11=McDonald| first11=I.| last12=Smalley| first12=B.| last13=Smith| first13=A. M. S. | last14=Street | first14=R. A. | last15=Udry | first15=S. | last16=West | first16=R. G. | last17=Wilson | first17=D. M. | last18=Wheatley | first18=P. J. | last19=Aigrain | first19=S. | last20=Alsubai | first20=K. | last21=Benn | first21=C. R. | last22=Bruce | first22=V. A. | last23=Christian | first23=D. J. | last24=Clarkson | first24=W. I. | last25=Enoch | first25=B. | last26=Evans | first26=A. | last27=Fitzsimmons | first27=A. | last28=Haswell | first28=C. A. | last29=Hellier | first29=C. | last30=Hickey | first30=S. | display-authors=1 | journal=Monthly Notices of the Royal Astronomical Society | volume=385 | issue=3 | pages=1576–1584 | year=2008 | arxiv=0711.0126 | bibcode=2008MNRAS.385.1576P | doi=10.1111/j.1365-2966.2008.12939.x | s2cid=2317308 }}</ref>
<ref name="Pollacco2008">{{cite journal | title=WASP-3b: a strongly irradiated transiting gas-giant planet | url=https://academic.oup.com/mnras/article/385/3/1576/1013033 | last1=Pollacco | first1=D. | last2=Skillen | first2=I. | last3=Collier Cameron | first3=A. | last4=Loeillet | first4=B. | last5=Stempels | first5=H. C. | last6=Bouchy | first6=F. | last7=Gibson | first7=N. P. | last8=Hebb| first8=L.| last9=Hébrard| first9=G.| last10=Joshi| first10=Y. C.| last11=McDonald| first11=I.| last12=Smalley| first12=B.| last13=Smith| first13=A. M. S. | last14=Street | first14=R. A. | last15=Udry | first15=S. | last16=West | first16=R. G. | last17=Wilson | first17=D. M. | last18=Wheatley | first18=P. J. | last19=Aigrain | first19=S. | last20=Alsubai | first20=K. | last21=Benn | first21=C. R. | last22=Bruce | first22=V. A. | last23=Christian | first23=D. J. | last24=Clarkson | first24=W. I. | last25=Enoch | first25=B. | last26=Evans | first26=A. | last27=Fitzsimmons | first27=A. | last28=Haswell | first28=C. A. | last29=Hellier | first29=C. | last30=Hickey | first30=S. | display-authors=1 | journal=Monthly Notices of the Royal Astronomical Society | volume=385 | issue=3 | pages=1576–1584 | year=2008 | arxiv=0711.0126 | bibcode=2008MNRAS.385.1576P | doi=10.1111/j.1365-2966.2008.12939.x | doi-access=free | s2cid=2317308 }}</ref>


}}
}}
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{{Stars of Lyra}}
{{Stars of Lyra}}


[[Category:Lyra (constellation)]]
[[Category:Lyra]]
[[Category:F-type subgiants]]
[[Category:F-type subgiants]]
[[Category:Planetary transit variables]]
[[Category:Planetary transit variables]]

Latest revision as of 10:37, 22 August 2024

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
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]
Distance800 ± 60 ly
(250 ± 20 pc)
Details
Mass1.24+0.11
−0.06 M☉
Radius1.31+0.12
−0.06 R☉
Temperature6400 ± 100 K
Metallicity0 (±0.2)
Other designations
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
SIMBADdata

WASP-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]

Planetary system

[edit]

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

[edit]

References

[edit]
  1. ^ a b c d e 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
  2. ^ a b 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.
  3. ^ a b c d e f "TYC 2636-195-1". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2009-05-04.
  4. ^ a b 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.
  5. ^ 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.
  6. ^ Planet found tugging on transits Archived 2010-07-13 at the Wayback Machine, Astronomy Now, 9 July 2010
  7. ^ 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. S2CID 120998224.
[edit]


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