2005 WY55
Near-Earth asteroid
From Wikipedia, the free encyclopedia
2005 WY55 is a near-Earth asteroid belonging to the Apollo group.[3] It was first discovered on 26 November 2005.[1] The asteroid will pass within 330,000 km (0.9 lunar distances) from the Earth on 28 May 2065.[4][5] It has an absolute magnitude (H) of 20.68.[2] It is estimated to be 190 to 250 meters in diameter.[1][3] It was removed from the Sentry Risk Table on 1 July 2006.[6]
| Asteroid | Date | Nominal approach distance (LD) | Min. distance (LD) | Max. distance (LD) | Absolute magnitude (H) | Size (meters) |
|---|---|---|---|---|---|---|
| (152680) 1998 KJ9 | 1914-12-31 | 0.606 | 0.604 | 0.608 | 19.4 | 279–900 |
| (458732) 2011 MD5 | 1918-09-17 | 0.911 | 0.909 | 0.913 | 17.9 | 556–1795 |
| (163132) 2002 CU11 | 1925-08-30 | 0.903 | 0.901 | 0.905 | 18.5 | 443–477 |
| 2017 VW13 | 2001-11-08 | 0.454 | 0.318 | 3.436 | 20.7 | 153–494 |
| (153814) 2001 WN5 | 2028-06-26 | 0.647 | 0.647 | 0.647 | 18.2 | 921–943 |
| 99942 Apophis | 2029-04-13 | 0.0981 | 0.0963 | 0.1000 | 19.7 | 310–340 |
| 2005 WY55 | 2065-05-28 | 0.865 | 0.856 | 0.874 | 20.7 | 153–494 |
| 101955 Bennu | 2135-09-25 | 0.780 | 0.308 | 1.406 | 20.19 | 472–512 |
| (153201) 2000 WO107 | 2140-12-01 | 0.634 | 0.631 | 0.637 | 19.3 | 427–593 |
| Discovery[1] | |
|---|---|
| Discovery date | 26 November 2005 |
| Designations | |
| 2005 WY55 | |
Apollo  NEO, PHA | |
| Orbital characteristics[2][3] | |
| Epoch 21 November 2025 (JD 2461000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 1451 days (3.97 yr) |
| Aphelion | 4.2849 AU (641.01 Gm) (Q) |
| Perihelion | 0.70130 AU (104.913 Gm) (q) |
| 2.4931 AU (372.96 Gm) (a) | |
| Eccentricity | 0.71870 (e) |
| 3.94 yr (1437.8 d) | |
| 12.1931° (M) | |
| 0° 15m 1.368s /day (n) | |
| Inclination | 7.27396° (i) |
| 247.95° (Ω) | |
| 286.40° (ω) | |
| Earth MOID | 0.00283688 AU (424,391 km) |
| Jupiter MOID | 0.951625 AU (142.3611 Gm) |
| Physical characteristics | |
| Dimensions | 190-250 meters[1][3] |
| 20.7[2] | |
