Near Earth asteroid
NASA's Near-Earth Object (NEO) web-site. Data related to ... CNEOS is NASA's center for computing asteroid and comet orbits and their odds of Earth impact. ,
| 相關軟體 Microsoft WorldWide Telescope 資訊 | |
|---|---|
 Near Earth asteroid 相關參考資料
Asteroid Watch - NASA
A Near-Earth Object (NEO) is generally defined as an asteroid or comet that approaches our planet less than 1.3 times the distance from Earth to the Sun (the ... https://www.jpl.nasa.gov Center for NEO Studies
NASA's Near-Earth Object (NEO) web-site. Data related to ... CNEOS is NASA's center for computing asteroid and comet orbits and their odds of Earth impact. https://cneos.jpl.nasa.gov List of asteroid close approaches to Earth - Wikipedia
https://en.wikipedia.org NASA Analysis: Earth Is Safe From Asteroid Apophis for 100 ...
2021年3月25日 — The near-Earth object was thought to pose a slight risk of impacting Earth in 2068, but now radar observations have ruled that out. https://www.jpl.nasa.gov NEAR Shoemaker - Wikipedia
The primary goal of the mission was to study the near-Earth asteroid 433 Eros from orbit for approximately one year. Eros is an S-type asteroid approximately 13 × ... https://en.wikipedia.org Near-Earth Asteroids (NEAs) - NEO Basics - NASA
Potentially Hazardous Asteroids (PHAs) are currently defined based on parameters that measure the asteroid's potential to make threatening close approaches to ... https://cneos.jpl.nasa.gov Near-Earth object - Wikipedia
Near-Earth comets (NECs) are objects in a near-Earth orbit with a tail or coma. Comet nuclei are typically less dense than asteroids but they pass Earth at higher ... https://en.wikipedia.org NEO Basics - CNEOS - NASA
Near-Earth Objects (NEOs) are comets and asteroids that have been nudged by the gravitational attraction of nearby planets into orbits that allow them to enter ... https://cneos.jpl.nasa.gov NEO Earth Close Approaches
The following table shows close approaches to the Earth by near-Earth objects ... absolute magnitude (in general, smaller H implies larger asteroid diameter). https://cneos.jpl.nasa.gov |