Near Earth asteroid
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 ... ,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. ,,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. ,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 × ... ,Potentially Hazardous Asteroids (PHAs) are currently defined based on parameters that measure the asteroid's potential to make threatening close approaches to ... ,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 ... ,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 ... ,The following table shows close approaches to the Earth by near-Earth objects ... absolute magnitude (in general, smaller H implies larger asteroid diameter).
| 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 |