(532037) 2013 FY27
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(532037) 2013 FY27 (provisional designation 2013 FY27) is a trans-Neptunian object and binary system that belongs to the scattered disc (like Eris).[8] Its discovery was announced on 31 March 2014.[1] It has an absolute magnitude (H) of 3.2.[3] 2013 FY27 is a binary object, with two components approximately 740 kilometres (460 mi) and 190 kilometres (120 mi) in diameter. It is the ninth-intrinsically-brightest known trans-Neptunian object,[9][failed verification] and is approximately tied with 2002 AW197 and 2002 MS4 (to within measurement uncertainties) as the largest unnamed object in the Solar System.
Quick Facts Discovery, Discovered by ...
Discovery[1] | |
---|---|
Discovered by | |
Discovery date | 17 March 2013 (announced on 31 March 2014) |
Designations | |
2013 FY27 | |
Orbital characteristics[3] | |
Epoch 2023 Feb 25 (JD 2460000.5) | |
Uncertainty parameter 4 | |
Observation arc | 3953 days (10.82 yr) |
Earliest precovery date | 15 March 2011 (Pan-STARRS) |
Aphelion | 81.912 AU (12.2539 Tm) |
Perihelion | 35.199 AU (5.2657 Tm) |
58.555 AU (8.7597 Tm) | |
Eccentricity | 0.3989 |
448.08 yr (163,660 d) | |
215.947° | |
0° 0m 7.92s /day | |
Inclination | 33.290° |
186.922° | |
≈ 2202 June 15 ± 17 days | |
139.752° | |
Known satellites | 1[4][5][6] |
Physical characteristics | |
Mean diameter | 765+80 −85 km (effective diameter)[4] 742+78 −83 km (primary)[lower-alpha 1][4] |
0.170+0.045 −0.030[4] | |
Temperature | 22 K (perihelion) to 16 K (aphelion) |
| |
22.5[7] | |
3.15±0.03[4][3] | |
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