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.
Attributes | Values |
---|
rdf:type
| |
rdfs:label
| - 2020 HS7 (en)
- 2020 HS7 (ja)
|
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。 (ja)
- 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. (en)
|
foaf:name
| |
dcterms:subject
| |
Wikipage page ID
| |
Wikipage revision ID
| |
Link from a Wikipage to another Wikipage
| |
sameAs
| |
dbp:wikiPageUsesTemplate
| |
aphelion
| |
arg peri
| |
asc node
| |
background
| |
dimensions
| |
discovered
| |
discoverer
| |
discovery site
| |
eccentricity
| |
epoch
| |
inclination
| |
mean anomaly
| |
mean motion
| |
minorplanet
| |
mp category
| |
observation arc
| |
perihelion
| |
period
| |
semimajor
| |
uncertainty
| |
has abstract
| - 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. (en)
- 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。 (ja)
|
prov:wasDerivedFrom
| |
apoapsis (km)
| |
orbital period (μ)
| |
periapsis (km)
| |
page length (characters) of wiki page
| |
apoapsis (μ)
| |
discovery date
| |
epoch
| - 9 August 2022 (JD2459800.5)
|
orbital period (s)
| |
periapsis (μ)
| |
discoverer
| |
foaf:isPrimaryTopicOf
| |
is foaf:primaryTopic
of | |