532037 Chiminigagua
 Chiminigagua (center) and its moon (bottom left), imaged by the Hubble Space Telescope on 15 January 2018 | |
| Discovery | |
|---|---|
| Discovered by | |
| Discovery site | Cerro Tololo Obs. (DECam) |
| Discovery date | 17 March 2013 |
| Designations | |
| Pronunciation | /ˌʃɪmɪniˈɡɑːɡwə/ or /ˌtʃɪ-/ (with the PASTA vowel) |
Named after | Chiminigagua |
| 2013 FY27 | |
| Orbital characteristics (barycentric) | |
| Epoch 25 February 2023 (JD 2460000.5) | |
| Uncertainty parameter 3 or 4 | |
| Observation arc | 13.94 yr (5,093 d) |
| Earliest precovery date | 15 March 2011 |
| Aphelion | 82.000 AU |
| Perihelion | 35.572 AU |
| 58.786 AU | |
| Eccentricity | 0.3949 |
| 450.43 yr (164,520 d) | |
| 216.561° | |
| 0° 0m 7.878s /day | |
| Inclination | 33.121° |
| 187.053° | |
| ≈ 31 October 2202 ±10 days | |
| 139.207° | |
| Known satellites | 1 |
| Physical characteristics | |
| 742+78 −83 km | |
| 0.170+0.045 −0.030 | |
| Temperature | 22 K (perihelion) to 16 K (aphelion) |
| |
| 22.5 | |
| 3.15±0.03 | |
532037 Chiminigagua (provisional designation 2013 FY27) is a large trans-Neptunian object located in the scattered disc. It was discovered on 17 March 2013 by Scott Sheppard and Chad Trujillo at Cerro Tololo Observatory in Chile. Chiminigagua has a diameter of about 740 km (460 mi), which is large enough that some astronomers consider it a possible dwarf planet.
Chiminigagua, like many other trans-Neptunian objects, has a moderately red color, which suggests it has an old, ice-poor surface that has been dulled by cosmic rays and micrometeoroid bombardment. It has one unnamed moon about 190 km (120 mi) in diameter, which is believed to have formed from a giant impact on Chiminigagua.