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| {{Planetbox begin | |||
| | name = ] Bb | |||
| }} | |||
| {{Planetbox star | |||
| ⚫ | |||
| | constell = ] | |||
| | ra = {{RA|02|37|00.5235}}<ref name="Gaia DR2"/> | |||
| | dec = {{DEC|+24|38|49.9880}}<ref name="Gaia DR2"/> | |||
| | app_mag = 7.09 | |||
| | dist_ly = {{val|145.8|0.3}}<ref name="Gaia DR2"/> | |||
| | dist_pc = {{val|44.7|0.1}}<ref name="Gaia DR2"/> | |||
| | class = F6V | |||
| | mass = 1.13 ± 0.08 | |||
| | radius = 1.13 ± 0.13 | |||
| | temperature = 6424 ± 180 | |||
| | metallicity = 0.07 ± 0.2 | |||
| | age = 0.91 ± 0.03 | |||
| }} | |||
| {{Planetbox orbit | |||
| | semimajor = 0.995 ± 0.012 | |||
| | eccentricity = 0.289 ± 0.092 | |||
| | period = 335.1 ± 2.5 | |||
| | period_year = 0.917 ± 0.007 | |||
| | speed = 32.3 | |||
| | arg_peri = 307 ± 18 | |||
| | t_peri = 2454538 ± 20 | |||
| | semi-amp = 270 | |||
| }} | |||
| {{Planetbox character | |||
| | minimum_mass = 9.88 ± 0.94 | |||
| | temperature = 300 | |||
| }} | |||
| {{Planetbox discovery | |||
| | discovery_date = November 27, 2009 | |||
| | discoverers = Guenther ''et al.'' | |||
| | discovery_method = ] | |||
| | discovery_site = ] | |||
| | discovery_status = Published | |||
| }} | |||
| {{Planetbox reference | |||
| | star = 30+Ari+B | |||
| | planet = b | |||
| }} | |||
| {{Planetbox end}} | |||
| ⚫ | ] | ||
| '''30 Arietis Bb''' (sometimes abbreviated '''30 Ari Bb''') is an ] which orbits the ] ] ] ], located in a quadruple star system approximately 146 ]s away in the ] ]. The ] planet was discovered by on Friday, November 27, 2009 by using precise ] from ] installed in ] in ].<ref name="Guenther2009">{{cite journal |last=Guenther |first=E. W. |display-authors=etal |date=2009 |url=http://www.aanda.org/articles/aa/full_html/2009/45/aa12112-09/aa12112-09.html |title=A substellar component orbiting the F-star 30 Arietis B |journal=Astronomy and Astrophysics|volume=507 |issue=3 |pages=1659–1665 |arxiv=0912.4619 |bibcode=2009A&A...507.1659G |doi=10.1051/0004-6361/200912112}}</ref> | |||
| ] | |||
| ==Overview== | |||
| 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 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" /> | |||
| ==References== | |||
| {{Reflist|refs= | |||
| <ref name="Gaia DR2">{{Cite Gaia DR2|102082477749475200}}</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 |website= |publisher=] |accessdate=3 October 2011}} | |||
| {{Sky|02|36|57.7405|+|24|38|53.027|128.6}} | |||
| ] | |||
| ] | |||
| ] | |||
| ⚫ | ] | ||
| ] | |||
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