Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q2014814> ?p ?o }
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- Q2014814 subject Q8374156.
- Q2014814 abstract "A potentially hazardous object (PHO) is a near-Earth asteroid or comet with an orbit such that it has the potential to make close approaches to the Earth and is of a size large enough to cause significant regional damage in the event of impact. A potentially hazardous object with a reasonably well determined orbit can be known not to be a threat to Earth for the next 100 years or more. Potentially hazardous asteroids with a threat of impacting Earth in the next 100 years are listed on the Sentry Risk Table.As of Template:MONTHNAME 2016[[Category:Articles containing potentially dated statements from Template:MONTHNAME 2016]] there are 1,651 potentially hazardous asteroids (PHAs) and only 205 have an observation arc less than 30 days. Among these, there are 153 PHAs believed to be larger than one kilometer in diameter. However a calculated diameter is only a rough estimate, as it is inferred from the object's varying brightness—observed and measured at various times—and the assumed, yet unknown reflectivity of its surface (albedo). Most of the discovered PHAs are Apollo asteroids (1,402) and fewer belong to the group of Aten asteroids (149).Due to several astronomical surveys, the number of known PHAs has increased tenfold since the end of the 1990s (see bar charts below). These surveys have led to a total number of 12,933 discovered near-Earth Objects, most of them being asteroids and some 85 near-Earth comets (NECs). The Minor Planet Center's website Unusual Minor Planets also publishes detailed statistics for these objects.".
- Q2014814 thumbnail Toutatis.jpg?width=300.
- Q2014814 wikiPageExternalLink risk.
- Q2014814 wikiPageExternalLink teca.html.
- Q2014814 wikiPageExternalLink Dangerous.html.
- Q2014814 wikiPageExternalLink Earth.
- Q2014814 wikiPageExternalLink iac-10.e3.1b.4.pdf.
- Q2014814 wikiPageExternalLink mbpl.html.
- Q2014814 wikiPageExternalLink risk-of-comet-hitting-earth-as-bad-as-asteroids-or-worse-say-researchers.
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- Q2014814 wikiPageWikiLink Q8374156.
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- Q2014814 comment "A potentially hazardous object (PHO) is a near-Earth asteroid or comet with an orbit such that it has the potential to make close approaches to the Earth and is of a size large enough to cause significant regional damage in the event of impact. A potentially hazardous object with a reasonably well determined orbit can be known not to be a threat to Earth for the next 100 years or more.".
- Q2014814 label "Potentially hazardous object".
- Q2014814 depiction Toutatis.jpg.