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List of asteroids

This is a list of numbered asteroids (minor planets), in sequential order.

As of May 2008 there are 187,745 numbered minor planets, and many more not yet numbered. Three minor planets have also been classified as dwarf planets. But most asteroids are ordinary and not particularly noteworthy—less than 15,000 of them have been named (the first nameless asteroid having number 3708). For a smaller list of notable asteroids, see List of notable asteroids.

Contents

List of asteroids

The list is much too long to fit on one page, so see these subpages:

       1–1000  10001–11000  20001–21000  30001–31000  40001–41000    1001–2000  11001–12000  21001–22000  31001–32000  41001–42000    2001–3000  12001–13000  22001–23000  32001–33000  42001–43000    3001–4000  13001–14000  23001–24000  33001–34000  43001–44000    4001–5000  14001–15000  24001–25000  34001–35000  44001–45000    5001–6000  15001–16000  25001–26000  35001–36000  45001–46000    6001–7000  16001–17000  26001–27000  36001–37000  46001–47000    7001–8000  17001–18000  27001–28000  37001–38000  47001–48000    8001–9000  18001–19000  28001–29000  38001–39000  48001–49000   9001–10000  19001–20000  29001–30000  39001–40000  49001–50000    50001–51000  60001–61000  70001–71000  80001–81000  90001–91000  51001–52000  61001–62000  71001–72000  81001–82000  91001–92000  52001–53000  62001–63000  72001–73000  82001–83000  92001–93000  53001–54000  63001–64000  73001–74000  83001–84000  93001–94000  54001–55000  64001–65000  74001–75000  84001–85000  94001–95000  55001–56000  65001–66000  75001–76000  85001–86000  95001–96000  56001–57000  66001–67000  76001–77000  86001–87000  96001–97000  57001–58000  67001–68000  77001–78000  87001–88000  97001–98000  58001–59000  68001–69000  78001–79000  88001–89000  98001–99000  59001–60000  69001–70000  79001–80000  89001–90000  99001–100000  100001–101000110001–111000120001–121000130001–131000140001–141000101001–102000111001–112000121001–122000131001–132000141001–142000102001–103000112001–113000122001–123000132001–133000142001–143000103001–104000113001–114000123001–124000133001–134000143001–144000104001–105000114001–115000124001–125000134001–135000144001–145000105001–106000115001–116000125001–126000135001–136000145001–146000106001–107000116001–117000126001–127000136001–137000146001–147000107001–108000117001–118000127001–128000137001–138000147001–148000108001–109000118001–119000128001–129000138001–139000148001–149000109001–110000119001–120000129001–130000139001–140000149001–150000  150001–151000160001–161000170001–171000180001–181000151001–152000161001–162000171001–172000181001–182000152001–153000162001–163000172001–173000182001–183000153001–154000163001–164000173001–174000183001–184000154001–155000164001–165000174001–175000184001–185000155001–156000165001–166000175001–176000185001–186000156001–157000166001–167000176001–177000186001–187000 157001–158000167001–168000177001–178000187001–188000 158001–159000168001–169000178001–179000159001–160000169001–170000179001–180000

Numbering and naming conventions

After discovery, asteroids generally receive a provisional designation (such as "1989 AC"), then a number (such as 4179), and finally (optionally) a name (such as "Toutatis"), in that order.

In modern times, an asteroid receives a sequential number only after its orbit is precisely known. Asteroids whose orbits are not (yet) precisely known are known by their provisional designation. This rule was not necessarily followed in earlier times, and some asteroids received a number but were subsequently "lost". All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert.

For the reasons mentioned above, the sequence of numbers only approximately matches the timeline of discovery. In extreme cases, such as "lost" asteroids, there may be a considerable mismatch: for instance the high-numbered 69230 Hermes was originally discovered in 1937, but was lost until 2003. Only after it was recovered could its orbit be established and a number assigned. Before this, it was simply known as 1937 UB (its provisional designation).

Only after a number is assigned is the asteroid eligible to receive a name. (For many years, Hermes was a rare exception, an unnumbered asteroid with a name.) Usually the discoverer has up to 10 years to pick a name; some asteroids remain unnamed. Especially towards the end of the 20th century, with large-scale automated asteroid discovery programs such as LINEAR, the pace of discoveries has increased so much that it seems likely that the vast majority of "run of the mill" discoveries from now on will never receive names.

In rare cases, a very unusual object may receive an unofficial name before it is numbered. A recent example is 90377 Sedna, which officially had only the systematic name "2003 VB12" before it was numbered (90377) and, shortly thereafter, named in September, 2004.

Books

  • Dictionary of Minor Planet Names, 5th ed.: Prepared on Behalf of Commission 20 Under the Auspices of the International Astronomical Union, Lutz D. Schmadel, ISBN 3-540-00238-3
  • The Names of the Minor Planets, Paul Herget, 1968

See also

References

External links

Categories: Lists of asteroids

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