View source for Astronomy:SWEEPS-10

{{short description|Exoplanet with one of the shortest orbital periods found; located in the constellation Sagittarius}}
{{Starbox begin
| name=SWEEPS J175902.00−291323.7}}
{{Starbox observe
| epoch=J2000
| ra=17h 59m 02.00s 
| dec=-29° 13' 23.7"'
| appmag_v=26.23
| constell=[[Astronomy:Sagittarius (constellation)|Sagittarius]] }}
|- style="vertical-align: top;"
{{Starbox astrometry
| dist_ly = 22,000
| dist_pc = 6,600
}}
{{Starbox detail
| mass=0.44
| radius=0.41}}
{{Starbox reference |
  Simbad=SWEEPS%20J175902.00-291323.7 }}
{{Starbox end}}
{{Infobox planet
| name                     = SWEEPS-10
<!-- DISCOVERY           -->
| discoverer               = Jeremy McGovern
| discovered               = October 4, 2006
| discovery_method         = Transit
<!-- DESIGNATIONS        -->
<!-- ORBITAL             --> 
| apsis                    = astron
| semimajor                = {{convert|0.008|AU|km|abbr=on}}
| period                   = 0.424 [[Day|d]]
| inclination              = >84
<!-- PHYS CHARS          --> 
| mean_radius              = 1.24±0.23 {{Jupiter radius|link=y}}
| mass                     = >1.6 {{Jupiter mass|link=y}}
<!-- ATMOSPHERE          --> 
<!-- NOTES               --> 
}}
'''SWEEPS-10''' is an extrasolar planet that, from June 2007 to August 2011, was the [[Astronomy:Planet|planet]] candidate with the shortest [[Astronomy:Orbital period|orbital period]] yet found, until [[Astronomy:PSR J1719-1438 b|PSR J1719-1438 b]] was discovered in 2011 with an even shorter orbit. The planet orbits the star SWEEPS J175902.00−291323.7 located in the [[Astronomy:Galactic bulge|Galactic bulge]] at a distance of approximately 22,000 [[Light year|light year]]s from [[Astronomy:Earth|Earth]] (based on a [[Physics:Distance modulus|distance modulus]] of 14.1).

It completes an orbit of its [[Astronomy:Star|star]] (designated SWEEPS J175902.00−291323.7) in just 10 hours, and is categorized as an [[Astronomy:Hot Jupiter#Ultra-short-period Jupiters|ultra-short period planet]] (USPP). Located only 1.2 million kilometers from its star (roughly three times the distance between the Earth and the [[Astronomy:Moon|Moon]]), the planet is among the hottest ever detected; its estimated [[Physics:Temperature|temperature]] is approximately 1,650 degrees [[Celsius]]. "This star-hugging planet must be at least 1.6 times the [[Physics:Mass|mass]] of [[Astronomy:Jupiter|Jupiter]], otherwise the star's gravitational muscle would pull the planet apart," said team leader Kailash Sahu of the [[Organization:Space Telescope Science Institute|Space Telescope Science Institute]] in Baltimore, Maryland. Such USPPs seem to occur only around dwarf stars.

The small star's relatively low temperature allows the planet to exist. "USPPs occur preferentially around normal [[Astronomy:Red dwarf|red dwarf]] stars that are smaller and cooler than our Sun," Sahu said.<ref>{{cite magazine |first=Jeremy|last=McGovern |url=http://www.astronomy.com/news/2006/10/hubbles-sweeps-16 |title=Hubble's SWEEPS 10 |date=October 4, 2006 |magazine=Astronomy Magazine |accessdate=2016-02-24}}</ref>
<gallery>
File:Artist's impression of an ultra-short-period planet.jpg|Artist's impression of an ultra-short-period planet like  SWEEPS-10.
</gallery>

==See also==
*SWEEPS stands for [[Astronomy:Sagittarius Window Eclipsing Extrasolar Planet Search|Sagittarius Window Eclipsing Extrasolar Planet Search]]
*[[Astronomy:SWEEPS-04|SWEEPS-04]]
*[[Astronomy:SWEEPS-11|SWEEPS-11]]

==References==
{{reflist}}
* {{cite journal | author=Sahu | title=Transiting extrasolar planetary candidates in the Galactic bulge | journal=Nature | volume=443 | pages=534–540 | year=2006 | doi=10.1038/nature05158 | pmid=17024085 | last2=Casertano | first2=S | last3=Bond | first3=HE | last4=Valenti | first4=J | last5=Smith | first5=TE | last6=Minniti | first6=D | last7=Zoccali | first7=M | last8=Livio | first8=M | last9=Panagia | first9=N | issue=7111 | bibcode=2006Natur.443..534S|arxiv = astro-ph/0610098 | s2cid=4403395 | display-authors=1 }} ([https://arxiv.org/abs/astro-ph/0610098 web Preprint])

==External links==
* [http://exoplanet.eu/catalog/sweeps-10_/ SWEEPS-10 at ''exoplanet.eu''] {{Webarchive|url=https://web.archive.org/web/20140202140353/http://exoplanet.eu/catalog/sweeps-10_/ |date=2014-02-02 }}

{{DEFAULTSORT:Sweeps-10}}
[[Category:Sagittarius (constellation)]]
[[Category:Exoplanet candidates]]
[[Category:Transiting exoplanets]]
[[Category:Hot Jupiters]]
[[Category:Giant planets]]



{{Sourceattribution|SWEEPS-10}}