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Statements

Subject Item
dbr:2020_HS7
rdf:type
owl:Thing dbo:Location wikidata:Q634 dbo:CelestialBody schema:Place dbo:Place dbo:Planet
rdfs:label
2020 HS7 2020 HS7
rdfs:comment
2020 HS7とは、2020年4月28日に地球から42,730キロメートル (26,550 mi)以内の距離で接近した地球近傍天体（NEO）として分類されている小惑星である。飛行距離は9.7マイル (15.6 km)。大きさは自動車と同程度で、最初に発見されたときは地球に影響を与える可能性が10％あったが、のちの観測により2020 HS7が地球に影響を及ぼすリスクはないことが示された。2020 HS7は地球の赤道から35,785キロメートル (22,236 mi)離れた静止軌道に最も近い衛星から1,210キロメートル (750 mi)以内の距離で接近した。 2020 HS7は、2020年4月27日にハワイのでパンスターズを使用して発見された。2055年までには月までの距離よりも近い距離まで接近することはない。 2020 HS7 is a very small asteroid classified as a near-Earth object of the Earth-crossing Apollo group. When it was discovered by the Pan-STARRS 2 survey on 27 April 2020, the asteroid was initially calculated to have a 10% chance of impact with Earth before being ruled out by improved orbit determinations from additional observations. Although there is now no risk of impact with Earth, it did make a close approach 42,700 kilometres (26,500 mi) from Earth on 28 April 2020, with a flyby speed of 15.6 kilometres per second (9.7 mi/s) relative to Earth. The asteroid will not make any close encounters within 1 lunar distance (380,000 km; 240,000 mi) of Earth in the next 100 years.
foaf:name
dcterms:subject
dbc:Astronomical_objects_discovered_in_2020 dbc:Apollo_asteroids dbc:Minor_planet_object_articles_(unnumbered) dbc:Fast_rotating_minor_planets dbc:Near-Earth_objects_in_2020 dbc:Discoveries_by_Pan-STARRS
dbo:wikiPageID
64678259
dbo:wikiPageRevisionID
1122691410
dbo:wikiPageWikiLink
dbr:Near-Earth_object dbc:Discoveries_by_Pan-STARRS dbc:Astronomical_objects_discovered_in_2020 dbc:Apollo_asteroids dbr:Pan-STARRS_2 dbr:Kiso_Observatory dbr:Orbit_determination dbr:YORP_effect dbr:List_of_fast_rotators_(minor_planets) dbr:Haleakala_Observatory dbr:Degree_(angle) dbr:Light_curve dbr:Nagano_Prefecture dbc:Minor_planet_object_articles_(unnumbered) dbr:Apollo_asteroid dbr:Julian_day dbc:Fast_rotating_minor_planets dbc:Near-Earth_objects_in_2020 dbr:List_of_asteroid_close_approaches_to_Earth_in_2020 dbr:Rotation_period dbr:Magnitude_(astronomy)
owl:sameAs
wikidata:Q97340820 dbpedia-ja:2020_HS7 n12:D8rGF dbpedia-fi:2020_HS7
dbp:wikiPageUsesTemplate
dbt:Convert dbt:Val dbt:2020_in_space dbt:Use_dmy_dates dbt:NeoDys dbt:Infobox_planet dbt:Reflist dbt:ESA-SSA dbt:Short_description dbt:Asof dbt:· dbt:JPL_small_body dbt:Mp dbt:Deg2DMS dbt:= dbt:Small_Solar_System_bodies
dbp:aphelion
2.904
dbp:argPeri
245.692
dbp:ascNode
38.531
dbp:background
#FFC2E0
dbp:dimensions
a/b ≥1.04
dbp:discovered
2020-04-27
dbp:discoverer
dbr:Pan-STARRS_2
dbp:discoverySite
dbr:Haleakala_Observatory
dbp:eccentricity
0.5709
dbp:epoch
2022-08-09
dbp:inclination
4.732
dbp:meanAnomaly
308.988
dbp:meanMotion
/ day
dbp:minorplanet
yes
dbp:mpCategory
NEOApollo
dbp:observationArc
86400.0
dbp:perihelion
0.793
dbp:period
7.9209576E7
dbp:semimajor
1.849
dbp:uncertainty
6
dbo:abstract
2020 HS7とは、2020年4月28日に地球から42,730キロメートル (26,550 mi)以内の距離で接近した地球近傍天体（NEO）として分類されている小惑星である。飛行距離は9.7マイル (15.6 km)。大きさは自動車と同程度で、最初に発見されたときは地球に影響を与える可能性が10％あったが、のちの観測により2020 HS7が地球に影響を及ぼすリスクはないことが示された。2020 HS7は地球の赤道から35,785キロメートル (22,236 mi)離れた静止軌道に最も近い衛星から1,210キロメートル (750 mi)以内の距離で接近した。 2020 HS7は、2020年4月27日にハワイのでパンスターズを使用して発見された。2055年までには月までの距離よりも近い距離まで接近することはない。 2020 HS7 is a very small asteroid classified as a near-Earth object of the Earth-crossing Apollo group. When it was discovered by the Pan-STARRS 2 survey on 27 April 2020, the asteroid was initially calculated to have a 10% chance of impact with Earth before being ruled out by improved orbit determinations from additional observations. Although there is now no risk of impact with Earth, it did make a close approach 42,700 kilometres (26,500 mi) from Earth on 28 April 2020, with a flyby speed of 15.6 kilometres per second (9.7 mi/s) relative to Earth. The asteroid will not make any close encounters within 1 lunar distance (380,000 km; 240,000 mi) of Earth in the next 100 years. Observations by Kiso Observatory in Nagano, Japan show that the asteroid rotates extremely rapidly with a rotation period of 3 seconds, making it the fastest-rotating asteroid known as of 2022. No other near-Earth asteroid of similar size is known to have a rotation period shorter than 10 seconds, which could be attributed to the tangential component of the YORP effect accelerating their rotation far beyond this period. The asteroid exhibits a very small light curve amplitude of 0.07 magnitudes, which either implies a nearly spherical shape or a pole-on rotation during observations.
prov:wasDerivedFrom
wikipedia-en:2020_HS7?oldid=1122691410&ns=0
n14:apoapsis
4.344322165128E8
n14:orbitalPeriod
916.7775
n14:periapsis
1.186311114651E8
dbo:wikiPageLength
5915
dbo:apoapsis
434432216512.8
dbo:discovered
2020-04-27
dbo:epoch
9 August 2022 (JD2459800.5)
dbo:orbitalPeriod
79209576.0
dbo:periapsis
118631111465.1
dbo:discoverer
dbr:Pan-STARRS_2
foaf:isPrimaryTopicOf
wikipedia-en:2020_HS7