(524435) 2002 CY248
| Discovery[1][2] | |
|---|---|
| Discovered by | M. W. Buie |
| Discovery site | Kitt Peak National Obs. |
| Discovery date | 6 February 2002 |
| Designations | |
| (524435) 2002 CY248 | |
| 2002 CY248 | |
| TNO[3]·cubewano[4][5] p-DP[6]·distant[1] | |
| Orbital characteristics[3] | |
| Epoch23 March 2018 (JD2458200.5) | |
| Uncertainty parameter3 | |
| Observation arc | 12.96 yr (4,733 days) |
| Aphelion | 53.081AU |
| Perihelion | 39.404 AU |
| 46.243 AU | |
| Eccentricity | 0.1479 |
| 314.47yr(114,859d) | |
| 233.51° | |
| 0° 0m11.16s/ day | |
| Inclination | 7.0487° |
| 300.74° | |
| 336.77° | |
| Physical characteristics | |
| 404km[5] 449 km[6] | |
| 0.06(assumed)[6] 0.09(assumed)[5] | |
| 5.2[3]·5.5[6] | |
(524435) 2002 CY248(provisional designation2002 CY248) is atrans-Neptunian objectand weakdwarf-planet candidatefrom theclassical Kuiper beltin the outermost region of theSolar System,approximately 400–450 kilometers (250–280 mi) in diameter. It was first observed on 6 February 2002, by American astronomerMarc Buieat theKitt Peak National Observatoryin Arizona, United States.[1]
Orbit and classification
[edit]2002 CY248orbits the Sun at a distance of 39.4–53.1AUonce every 314 years and 6 months (114,859 days;semi-major axisof 46.2 AU). Its orbit has aneccentricityof 0.15 and aninclinationof 7°with respect to theecliptic.[3]The body'sobservation arcbegins at Kitt Peak with its official first observation on 6 February 2002.[1]A 10-million-year integration of the orbit shows that it is aClassical Kuiper belt objectthat does not get closer to the Sun than 38.8AU(5.80billionkm) or further than 54 AU.[4]
Physical characteristics
[edit]Based on anabsolute magnitudeof 5.2,[3]and an assumedalbedoof 0.09, theJohnston'sarchiveestimates amean diameterof approximately 404 kilometers (251 mi),[5]while astronomerMichael Brownassumes an albedo of 0.06 and calculates a diameter of 449 kilometers (279 mi) using a fainter magnitude of 5.5. Brown also characterizes the object as a "probable dwarf planet", an intermediate category in hisclassification scheme(also seelist of candidates).[6]
As of 2018, no rotationallightcurveof this object has been obtained fromphotometricobservations. The object'srotation period,poleand shape remain unknown.[3]
Numbering and naming
[edit]Thisminor planetwas numbered by theMinor Planet Centeron 18 May 2019 (M.P.C.114619). As of 2019, it has not been named.[7]
See also
[edit]References
[edit]- ^abcd"2002 CY248".Minor Planet Center.Retrieved23 February2018.
- ^"List Of Transneptunian Objects".Minor Planet Center.Retrieved23 February2018.
- ^abcdef"JPL Small-Body Database Browser: (2002 CY248)"(2015-01-22 last obs.).Jet Propulsion Laboratory.Retrieved23 February2018.
- ^abBuie, Marc W."Orbit Fit and Astrometric record for 02CY248".SwRI (Space Science Department). Archived fromthe originalon 18 February 2018.Retrieved17 February2018.
- ^abcdJohnston, Wm. Robert (30 December 2017)."List of Known Trans-Neptunian Objects".Johnston's Archive.Retrieved23 February2018.
- ^abcdeBrown, Michael E."How many dwarf planets are there in the outer solar system?".California Institute of Technology.Retrieved23 February2018.
- ^"MPC/MPO/MPS Archive".Minor Planet Center.Retrieved29 May2019.
External links
[edit]- MPEC 2004-E32: 2002 CZ154, 2002 CY248, 2002 CD251, 2002 XH91, 2003 FK127, 2003 FH129,Minor Planet Electronic Circular,11 March 2004
- (524435) 2002 CY248atAstDyS-2, Asteroids—Dynamic Site
- (524435) 2002 CY248at theJPL Small-Body Database
