Near-Earth objects
Topic: Category
From HandWiki - Reading time: 1 min
Here is a list of articles in the Near-Earth objects category of the Astronomy portal.
Articles about near-Earth objects, including any small Solar System body whose orbit brings it into proximity with Earth. By convention, a Solar System body is a NEO if its closest approach to the Sun (perihelion) is less than 1.3 astronomical units (AU). If a NEO's orbit crosses the Earth's, and the object is larger than 140 meters (460 ft) across, it is considered a potentially hazardous object (PHO). Most known PHOs and NEOs are asteroids, but a small fraction are comets.
Subcategories
This category has the following 2 subcategories, out of 2 total.
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- Near-Earth object tracking (23 P)
Pages in category "Near-Earth objects"
The following 7 pages are in this category, out of 7 total.
Licensed under CC BY-SA 3.0 | Source: https://handwiki.org/wiki/Category:Near-Earth_objects12 views | ↧ Download this article as ZWI file
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