List Of Asteroids
Here is a list of numbered asteroids, ordered by number.
On 18 February 2011 , the Minor Planet Center counted 267 002 numbered asteroids, of which 16 271 appointed, and unnumbered asteroids 278,279, a total of 545,281 known orbits.
Summary |
List
The list is too long to fit on one page. See sub-pages:
Numbering and names
At their discovery, asteroids are named systematically (eg "1989 AC"), then a number (as 4179), and finally (optionally) a name (such as " (4179) Toutatis "), in that order.
Today, an asteroid is given a number after its orbit was considered closed no way established. Asteroids whose orbits are not (yet) known with precision are designated by their systematic name (see description of asteroids ). This rule has not always been respected in the past, and some asteroids have received a number to be subsequently "lost." All have now been recovered and the last numbered asteroid "lost" was (719) Albert.
For the reasons mentioned above, the sequence of numbers that matched approximately the sequence of discoveries. In rare extreme cases, such as asteroids "lost" there may be considerable variation: for example, (69230) Hermes was discovered in 1937 , but remained lost until 2003. Only after his recovery that its orbit has been sufficiently determined and a number assigned. Before that, it was called 1937 UB (systematic name).
Only when a numbered asteroid becomes eligible to receive a name (for years, Hermes was a rare exception, an asteroid named yet unnumbered). Normally, the discoverer has ten years to submit a name and some asteroids remain unnamed. Towards the end of the twentieth century , the automated discovery programs such as LINEAR pushed the pace of discovery to such a level that it seems almost certain that the vast majority of these discoveries "ordinary" will remain anonymous.
In rare cases, an unusual object may receive an unofficial name before being numbered. For example, (136199) Eris , unofficially named Xena when its provisional designation was 2003 UB 313. An example is (90377) Sedna , discovered November 14, 2003, announced March 15, 2004, which carried the provisional designation "2003 VB 12" until it is numbered (90 377) and that his name be endorsed in September 2004.
See also
Internal Links
- List of Centaurs
- Near-Earth asteroid :
- List of asteroids along with a moon
- Project: Astronomical Objects
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