(120348) 2004 TY364
| Discovery | |
|---|---|
| Discovered by | Michael E. Brown, Chad Trujillo, David L. Rabinowitz |
| Discovery date | October 3, 2004 |
| Designations | |
Designation | (120348) 2004 TY364 |
| TNO: Cubewano[1] SCATEXTD[2] Other[3][4] | |
| Orbital characteristics[5] | |
| Epoch JD 2457000.5 (9 December 2014) | |
| Aphelion | 41.490 AU |
| Perihelion | 36.255 AU |
| 38.87 AU | |
| Eccentricity | 0.06734 |
| 242.37 yr (88,525 d) | |
| 266.50° | |
| Inclination | 24.8509° |
| 140.6256° | |
| 357.57° | |
| Physical characteristics | |
| Dimensions | 554 km[3] |
| Albedo | 0.08 (expected from theory)[6] |
| 20.4[7] | |
| 4.5[5] | |
(120348) 2004 TY364, also written as (120348) 2004 TY364, is a trans-Neptunian object. It is an inner classical Kuiper belt object in the definition by Gladman, Marsden, and Van Laerhoven (e<0.24).[1] Its inclination of almost 25 degrees disqualifies it as such in Marc Buie's definition[specify].[2] It is also not listed as a scattered disc object by the Minor Planet Center.[8] It was discovered by Michael E. Brown, Chad Trujillo and David L. Rabinowitz on October 3, 2004 at the Palomar Observatory.
With an absolute magnitude of 4.5, it is likely a dwarf planet.[6] However, light curve analysis has questioned whether it really is one.[9]
As of 2014[update], it is 39.2 AU from the Sun.[7]
References
- ^ a b Nomenclature in the outer Solar System
- ^ a b Marc W. Buie. "Orbit Fit and Astrometric record for 120348" (last observation: 2005-08-31 using 20 of 21 observations over 22 years). SwRI (Space Science Department). Retrieved 2014-11-13.
- ^ a b List of known trans-Neptunian objects at Johnston's Archive
- ^ "MPEC 2010-S44 :Distant Minor Planets (2010 OCT. 11.0 TT)". IAU Minor Planet Center. 2010-09-25. Retrieved 2014-11-16.
- ^ a b c "JPL Small-Body Database Browser: 120348 (2004 TY364)" (2005-09-01 last obs; arc: 22.13 years). Retrieved 2014-11-13.
- ^ a b Michael E. Brown. "How many dwarf planets are there in the outer solar system? (updates daily)". California Institute of Technology. Retrieved 2011-08-25.
- ^ a b "AstDys (120348) 2004TY364 Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2009-12-10.
- ^ "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Retrieved 2014-11-13.
- ^ Gonzalo Tancredi; Sofía Favre (13 October 2008). "Dwarf Planet & Plutoid Headquarters". Portal Uruguayo de Astronomía. Retrieved 2010-09-22.
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