2005 WY55

2005 WY₅₅
Discovery
Discovery date	26 November 2005
Designations
Minor planet category	Apollo ; NEO, PHA
Orbital characteristics
	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)
Semi-major axis	2.4931 AU (372.96 Gm) (a)
Eccentricity	0.71870 (e)
Orbital period (sidereal)	3.94 yr (1437.8 d)
Mean anomaly	12.1931° (M)
Mean motion	0° 15m 1.368s /day (n)
Inclination	7.27396° (i)
Longitude of ascending node	247.95° (Ω)
Argument of perihelion	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
Absolute magnitude (H)	20.7

2005 WY₅₅ is a near-Earth asteroid belonging to the Apollo group. It was first discovered on 26 November 2005. The asteroid will pass within 330,000 km (0.9 lunar distances) from the Earth on 28 May 2065. It has an absolute magnitude (H) of 20.68. It is estimated to be 190 to 250 meters in diameter. It was removed from the Sentry Risk Table on 1 July 2006.

H < 21 asteroids passing less than 1 LD from Earth
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

References

1 2 3 4 "CRT 2005 Object Archive". Archived from the original on 15 June 2011. Retrieved 20 October 2020.
1 2 3 "JPL Small-Body Database Browser". Jet Propulsion Laboratory. Retrieved 30 March 2016.
1 2 3 4 "Asteroid General Data - 2005 WY55". Retrieved 13 November 2011.
↑ "Sormano Astronomical Observatory: Table of Asteroids Next Closest Approaches to the Earth". Retrieved 13 November 2011.
↑ "Near Earth Asteroids (NEAs)". 10 November 2011. Archived from the original on 2 April 2012. Retrieved 13 November 2011.
↑ "Date/Time Removed". NASA/JPL Near-Earth Object Program Office. Archived from the original on 2 June 2002. Retrieved 19 March 2012.

External links

2005 WY55 at NeoDyS-2, Near Earth Objects—Dynamic Site
- Ephemerides · Observation prediction · Orbital info · MOID · Proper elements · Observational info · Close approaches · Physical info · Orbit animation
2005 WY55 at ESA–space situational awareness
- Ephemerides · Observations · Orbit · Physical properties · Summary
2005 WY55 at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

Preceded by

2012 UE34

Large NEO Earth close approach
(inside the orbit of the Moon)
28 May 2065

Succeeded by

2007 YV56

This near-Earth asteroid-related article is a stub. You can help Wikipedia by adding missing information.

[CRT-1] 1 2 3 4 "CRT 2005 Object Archive". Archived from the original on 15 June 2011. Retrieved 20 October 2020.

[jpldata-2] 1 2 3 "JPL Small-Body Database Browser". Jet Propulsion Laboratory. Retrieved 30 March 2016.

[SmallBodies-3] 1 2 3 4 "Asteroid General Data - 2005 WY55". Retrieved 13 November 2011.

[4] "Sormano Astronomical Observatory: Table of Asteroids Next Closest Approaches to the Earth". Retrieved 13 November 2011.

[5] "Near Earth Asteroids (NEAs)". 10 November 2011. Archived from the original on 2 April 2012. Retrieved 13 November 2011.

[removed-6] "Date/Time Removed". NASA/JPL Near-Earth Object Program Office. Archived from the original on 2 June 2002. Retrieved 19 March 2012.

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