About: 2021 RR205

An Entity of Type: planet, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org

2021 RR205 is an extreme trans-Neptunian object and sednoid discovered by astronomers Scott Sheppard, David Tholen, and Chad Trujillo with the Subaru Telescope at Mauna Kea Observatory on 5 September 2021. It resides beyond the outer extent of the Kuiper belt on a distant and highly eccentric orbit detached from Neptune's gravitational influence, with a large perihelion distance of 55.5 astronomical units (AU). Its large orbital semi-major axis (~1,000 AU) suggests it is potentially from the inner Oort cloud. Like 2013 SY99, 2021 RR205 lies in the 50–75 AU perihelion gap that separates the detached objects from the more distant sednoids; dynamical studies indicate that such objects in the inner edge this gap weakly experience "diffusion", or inward orbital migration due to minuscule pertur

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dbo:abstract	2021 RR205 is an extreme trans-Neptunian object and sednoid discovered by astronomers Scott Sheppard, David Tholen, and Chad Trujillo with the Subaru Telescope at Mauna Kea Observatory on 5 September 2021. It resides beyond the outer extent of the Kuiper belt on a distant and highly eccentric orbit detached from Neptune's gravitational influence, with a large perihelion distance of 55.5 astronomical units (AU). Its large orbital semi-major axis (~1,000 AU) suggests it is potentially from the inner Oort cloud. Like 2013 SY99, 2021 RR205 lies in the 50–75 AU perihelion gap that separates the detached objects from the more distant sednoids; dynamical studies indicate that such objects in the inner edge this gap weakly experience "diffusion", or inward orbital migration due to minuscule perturbations by Neptune. 2021 RR205's heliocentric distance was 60 AU when it was discovered. It has been detected in precovery observations by the Dark Energy Survey at Cerro Tololo Observatory from as early as July 2017. It last passed perihelion in the early 1990s and is now moving outbound from the Sun. (en)
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dbo:discovered	2021-09-05 (xsd:date)
dbo:discoverer	dbr:Scott_S._Sheppard dbr:David_Tholen dbr:Chad_Trujillo
dbo:epoch	25 February 2023 (JD2460000.5)
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dbp:discovered	2021-09-05 (xsd:date)
dbp:discoverer	dbr:Scott_S._Sheppard dbr:David_Tholen dbr:Chad_Trujillo
dbp:discoverySite	dbr:Mauna_Kea_Observatories
dbp:earliestPrecoveryDate	2017-07-24 (xsd:date)
dbp:eccentricity	0.943950 (xsd:double)
dbp:epoch	2023-02-25 (xsd:date)
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dbp:observationArc	1.61259336E8
dbp:perihelion	55.541
dbp:semimajor	990.9
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rdfs:comment	2021 RR205 is an extreme trans-Neptunian object and sednoid discovered by astronomers Scott Sheppard, David Tholen, and Chad Trujillo with the Subaru Telescope at Mauna Kea Observatory on 5 September 2021. It resides beyond the outer extent of the Kuiper belt on a distant and highly eccentric orbit detached from Neptune's gravitational influence, with a large perihelion distance of 55.5 astronomical units (AU). Its large orbital semi-major axis (~1,000 AU) suggests it is potentially from the inner Oort cloud. Like 2013 SY99, 2021 RR205 lies in the 50–75 AU perihelion gap that separates the detached objects from the more distant sednoids; dynamical studies indicate that such objects in the inner edge this gap weakly experience "diffusion", or inward orbital migration due to minuscule pertur (en)
rdfs:label	2021 RR205 (en)
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