(15760) 1992 QB1
|
|
| Discovery[1] | |
|---|---|
| Discovered by | David C. Jewitt, Jane X. Luu |
| Discovery date | August 30, 1992 |
| Designations | |
| Trans-Neptunian object (cubewano)[2] |
|
| Orbital characteristics | |
| Epoch December 9, 2014 (JD 2457000.5)[3] | |
| Aphelion | 46.8752 AU |
| Perihelion | 40.9208 AU |
| 43.8980 AU | |
| Eccentricity | 0.0678 |
| 290.85 a | |
|
Average orbital speed
|
4.4961 km/s |
| 24.1405° | |
| Inclination | 2.1907° |
| 359.4942° | |
| 4.2972° | |
| Physical characteristics | |
| Dimensions | 167 km[4] 108 km[5] |
| Albedo | 0.2 (expected from theory)[5] |
| ~23.4[6] | |
| 7.1[3] | |
(15760) 1992 QB1, also written (15760) 1992 QB1, was the first trans-Neptunian object to be discovered after Pluto and Charon. It was discovered in 1992 by David C. Jewitt and Jane X. Luu at the Mauna Kea Observatory, Hawaii. It is a classical Kuiper belt object and gave rise to the name cubewano for this kind of object, after the "QB1" portion of its designation.[7] Decoding its provisional designation, "QB1" reveals that it was the 27th object found in the second half of August of that year.[1] Over 1,500 further objects have been found beyond Neptune, a good number of which are classical Kuiper belt objects.
The discoverers suggested the name "Smiley" for (15760) 1992 QB1,[8] but the name was already used for an asteroid 1613 Smiley, named after the American astronomer Charles Hugh Smiley. It has received the number 15760[2] and remains unnamed; it is normally referred to simply as "QB1", even though this is technically ambiguous without the year of discovery.
Notes
^ Asteroid provisional designations follow a format, in which the year it was discovered comes first, followed by the half-month it was discovered alphabetically (e.g. A=January 1–15, B=January 16–31 and so on,) and then the order of its discovery alphabetically (skipping the letter I) followed by a number (e.g. 1992 QA, 1992 QB, 1992 QC ... 1992 QY, 1992 QZ, 1992 QA1, 1992 QB1 and so on.) According to this, Q=August 16–31 and B1=25+2=27.
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 Mike Brown, 'How many dwarf planets are there in the outer solar system? Accessed 2014-11-19
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ What Lurks in the Outer Solar System? (Science@NASA, 13 September 2001)
External links
- Orbital simulation from JPL at Nasa(Java)
- Ephemeris
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