| Discovery [1][2] | |
|---|---|
| Discovered by | K. Černis R. P. Boyle |
| Discovery site | VATT (Mount Graham Obs.) |
| Discovery date | 23 January 2012 |
| Designations | |
| (420356) Praamzius | |
| Pronunciation | /preɪˈæmziəs/ (Lithuanian: [prɐˈâmʑʊs]) |
Named after | Praámžius [1] (Lithuanian mythology) |
| 2012 BX85 | |
| TNO [3] · cubewano [4][5] cold [6] · distant [1] | |
| Adjectives | Praamzinian |
| Orbital characteristics [3] | |
| Epoch 27 April 2019 (JD 2458600.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 13.08 yr (4,778 d) |
| Aphelion | 43.027 AU |
| Perihelion | 42.147 AU |
| 42.587 AU | |
| Eccentricity | 0.0103 |
| 277.93 yr (101,512 d) | |
| 185.10° | |
| 0° 0m 12.6s / day | |
| Inclination | 1.1001° |
| 314.26° | |
| ≈ 12 June 2158[7] ±3 months | |
| 358.38° | |
| Physical characteristics | |
| 191 km (est.)[6] 321 km (est.)[4] | |
| 0.09 (assumed)[4] 0.20 (assumed)[6] | |
| 22.09 (visible)[8] | |
| 5.7[1][3] | |
420356 Praamzius (provisional designation 2012 BX85) is a trans-Neptunian object from the classical Kuiper belt, located in the outermost region of the Solar System, approximately 190–320 kilometers (120–200 miles) in diameter.[4][6] It was discovered on 23 January 2012, by astronomers Kazimieras Černis and Richard Boyle with the Vatican's VATT at Mount Graham Observatory in Arizona, United States. The cold classical Kuiper belt object is a weak dwarf planet candidate and possibly very red in color. It was named after the chief god Praamžius from Lithuanian mythology.[1]
MPC-object was invoked but never defined (see the help page).MPEC was invoked but never defined (see the help page).jpldata was invoked but never defined (see the help page).johnstonsarchive-TNO-list was invoked but never defined (see the help page).Buie was invoked but never defined (see the help page).Brown-dplist was invoked but never defined (see the help page).AstDys-object was invoked but never defined (see the help page).