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'''30 Arietis Bb''' (sometimes abbreviated '''30 Ari Bb''') is an ] which orbits the ] ] ] ], located in a quadruple star system approximately 129 ]s away in the ] ].<ref name="Guenther2009"><cite class="citation journal">Guenther, E. W.; et al. (2009). . ''Astronomy and Astrophysics''. '''507''' (3): 1659–1665. ]:<span class="plainlinks">&#x202F;]</span>. ]:]. ]:].</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Astronomy+and+Astrophysics&rft.atitle=A+substellar+component+orbiting+the+F-star+30+Arietis+B&rft.volume=507&rft.issue=3&rft.pages=1659-1665&rft.date=2009&rft_id=info%3Aarxiv%2F0912.4619&rft_id=info%3Adoi%2F10.1051%2F0004-6361%2F200912112&rft_id=info%3Abibcode%2F2009A%26A...507.1659G&rft.aulast=Guenther&rft.aufirst=E.+W.&rft.au=Hartmann%2C+M.&rft.au=Esposito%2C+M.&rft.au=Hatzes%2C+A.+P.&rft.au=Cusano%2C+F.&rft.au=Gandolfi%2C+D.&rft_id=http%3A%2F%2Fwww.aanda.org%2Farticles%2Faa%2Ffull_html%2F2009%2F45%2Faa12112-09%2Faa12112-09.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3A30+Arietis+Bb" class="Z3988"><span style="display:none;">&nbsp;</span></span></ref> The ] planet was discovered by on Friday, November 27, 2009 by using precise ] from ] installed in ] in ].<ref name=":0">{{Cite journal|last=Guenther|first=E. W.|last2=Hartmann|first2=M.|last3=Esposito|first3=M.|last4=Hatzes|first4=A. P.|last5=Cusano|first5=F.|last6=Gandolfi|first6=D.|date=2009-09-24|title=A substellar component orbiting the F-star 30 Arietis B|url=https://doi.org/10.1051/0004-6361/200912112|journal=Astronomy & Astrophysics|language=en|volume=507|issue=3|pages=1659–1665|doi=10.1051/0004-6361/200912112|issn=0004-6361}}</ref>
⚫ '''30 Arietis Bb''' (sometimes abbreviated '''30 Ari Bb''') is an ] which orbits the ] ] ] ], located in a quadruple star system approximately 129 ]s away in the ] ]. This planet has ] nearly 10 times that of ]. Because ] is not known, its ] is unknown. Meanwhile, this planet orbits only 0.995 AU (or 700,000&nbsp;km) closer to the star than ] to the Sun, but its ] is much higher compared to Earth. At ], the planet’s closest distance to the star is 0.708 AU, which is slightly closer to the star than ] to the Sun. At ], the planet’s farthest distance to the star is 1.283 AU, which is more than halfway between the orbits of Earth and ].<ref name="Guenther2009"/>


== Overview ==
This ] planet was discovered on Friday, November 27, 2009 by using precise ] from ] installed in ] in ].
⚫ The exoplanet 30 Arietis Bb has a ] of nearly 10 times that of ].<ref>{{Cite web|url=https://exoplanets.nasa.gov/newworldsatlas/5479|title=30 Ari B b {{!}} New World Atlas - Exoplanet Exploration: Planets Beyond our Solar System|website=Exoplanet Exploration: Planets Beyond our Solar System|access-date=2018-07-30}}</ref> Because ] is not identified, its ] is unknown. Meanwhile, this planet orbits only 0.995 AU (or 700,000&nbsp;km) closer to the star than ] to the Sun, but its ] is much higher compared to Earth. At ], the planet’s closest distance to the star is 0.708 AU, which is slightly closer to the star than ] to the Sun. At ], the planet’s farthest distance to the star is 1.283 AU, which is more than halfway between the orbits of Earth and ].<ref name="Guenther2009" />

== Moon ==
30 Arietis Bb m is a large, ], planet-like ], with a diameter about approximately three-fourths of Earth's. It is one of the ] discovered at the star system of 30 Arietis B in 2012.<ref name=":0" /><ref>{{Cite web|url=http://phl.upr.edu/library/notes/latestlistofpotentialhabitableexoplanetsandexomoons|title=Latest List of Potential Habitable Exoplanets and Exomoons - Planetary Habitability Laboratory @ UPR Arecibo|website=phl.upr.edu|access-date=2018-07-30}}</ref>


== References == == References ==
<references />
{{Reflist|colwidth=30em|refs=

<ref name="Guenther2009">{{cite journal | title=A substellar component orbiting the F-star 30 Arietis B | url=http://www.aanda.org/articles/aa/full_html/2009/45/aa12112-09/aa12112-09.html | last1=Guenther | first1=E. W. | last2=Hartmann | first2=M. | last3=Esposito | first3=M. | last4=Hatzes | first4=A. P. | last5=Cusano | first5=F. | last6=Gandolfi | first6=D. | display-authors=1 | journal=Astronomy and Astrophysics | volume=507 | issue=3 | pages=1659–1665 | year=2009 | arxiv=0912.4619 | bibcode=2009A&A...507.1659G | doi=10.1051/0004-6361/200912112 }}</ref>

<ref name="van Leeuwen2007">{{cite journal | title=Validation of the new Hipparcos reduction | url=http://www.aanda.org/index.php?option=com_article&access=bibcode&Itemid=129&bibcode=2007A%2526A...474..653VFUL | last1=van Leeuwen | first1=F. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | year=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 }} </ref>


}}
* {{cite web |url=http://exoplanet.eu/planet.php?p1=30+Ari+B&p2=b |title=Notes for Planet 30 Ari B b |author=Jean Schneider |year=2011 |work= |publisher=] |accessdate=3 October 2011}} * {{cite web |url=http://exoplanet.eu/planet.php?p1=30+Ari+B&p2=b |title=Notes for Planet 30 Ari B b |author=Jean Schneider |year=2011 |work= |publisher=] |accessdate=3 October 2011}}


Revision as of 10:31, 30 July 2018

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30 Arietis Bb (sometimes abbreviated 30 Ari Bb) is an extrasolar planet which orbits the F-type main sequence star 30 Arietis B, located in a quadruple star system approximately 129 light years away in the constellation Aries. The gas giant planet was discovered by on Friday, November 27, 2009 by using precise radial velocity method from echelle spectrograph installed in Alfred-Jensch telescope in Karl Schwarzschild Observatory.

Overview

The exoplanet 30 Arietis Bb has a minimum mass of nearly 10 times that of Jupiter. Because inclination is not identified, its true mass is unknown. Meanwhile, this planet orbits only 0.995 AU (or 700,000 km) closer to the star than Earth to the Sun, but its orbital eccentricity is much higher compared to Earth. At periastron, the planet’s closest distance to the star is 0.708 AU, which is slightly closer to the star than Venus to the Sun. At apastron, the planet’s farthest distance to the star is 1.283 AU, which is more than halfway between the orbits of Earth and Mars.

Moon

30 Arietis Bb m is a large, subterrestrial, planet-like natural satellite, with a diameter about approximately three-fourths of Earth's. It is one of the exomoons discovered at the star system of 30 Arietis B in 2012.

References

  1. ^ Guenther, E. W.; et al. (2009). "A substellar component orbiting the F-star 30 Arietis B". Astronomy and Astrophysics. 507 (3): 1659–1665. arXiv:0912.4619 Freely accessible. Bibcode:2009A&A...507.1659G. doi:10.1051/0004-6361/200912112. 
  2. ^ Guenther, E. W.; Hartmann, M.; Esposito, M.; Hatzes, A. P.; Cusano, F.; Gandolfi, D. (2009-09-24). "A substellar component orbiting the F-star 30 Arietis B". Astronomy & Astrophysics. 507 (3): 1659–1665. doi:10.1051/0004-6361/200912112. ISSN 0004-6361.
  3. "30 Ari B b | New World Atlas - Exoplanet Exploration: Planets Beyond our Solar System". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2018-07-30.
  4. "Latest List of Potential Habitable Exoplanets and Exomoons - Planetary Habitability Laboratory @ UPR Arecibo". phl.upr.edu. Retrieved 2018-07-30.


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