2014 HQ124
Lua error in Module:Infobox at line 314: malformed pattern (missing ']'). 2014 HQ124 (also written 2014 HQ124) is an Aten near-Earth asteroid roughly 370 meters (1,210 ft) in diameter that passed 3.25 lunar distances (LD) from Earth on 8 June 2014.[6] It was discovered on 23 April 2014 by NEOWISE.[1] It is estimated that an impact event would produce the equivalent of 2,000 megatons of TNT and create a 5 km (3 mi) impact crater.[7] The news media misleadingly nicknamed it, The Beast.[8] 2014 HQ124 previously passed this close to Earth in 1952[6] and will not again until at least 2307.[9] Radar imaging suggests it may be a contact binary.[3]
2014 close approach
On 6 June 2014, the asteroid brightened to about apparent magnitude 13.7 while in the southern constellation of Horologium.[10] Near its closest approach to Earth of 3.25 Lunar distances on 8 June 2014, the asteroid crossed the celestial equator, making it a northern hemisphere object. It however had an elongation of about 20 degrees from the Sun,[10] and was lost in astronomical twilight during the closest approach to Earth. The Goldstone Deep Space Network observed the asteroid later on 8 June 2014,[5] when the asteroid was between 3.6 and 3.8 lunar distances.[3]
On average, an object about the size of 2014 HQ124 will pass this close to Earth every few years.[11] Similar events, where other 100+ meter diameter asteroids have or will soon pass less than 4 LD from Earth, include:
- 4179 Toutatis (~3000 meters in diameter) passed 4.0 LD from Earth on 29 September 2004
- 2004 XP14 (~500 meters in diameter) passed 1.1 LD from Earth on 3 July 2006
- (308635) 2005 YU55 (~360 meters in diameter) passed 0.8 LD from Earth on 8 November 2011
- 2014 EG45 (~140 meters in diameter) passed 3.2 LD from Earth on 4 March 2014[12]
- (357439) 2004 BL86 (~600 meters in diameter) passed 3.1 LD from Earth on 26 January 2015[13]
References
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- Orbital simulation from JPL (Java) / Ephemeris
- Near-Earth Asteroid 2014 HQ124 (Slooh broadcast 5 June 2014)
- Near-Earth asteroid 2014 HQ124 discovered by NEOWISE (Amy Mainzer 2014-04-28)
- High Resolution Radar at Arecibo Observatory Reveals Asteroid As a Beauty, Not a Beast (USRA June 12, 2014)
- 2014 HQ124 at the JPL Small-Body Database
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2014 in space
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- ↑ 1.0 1.1 Lua error in package.lua at line 80: module 'strict' not found. (K14HC4Q)
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 5.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ https://twitter.com/AreciboRadar/status/475709720842366977
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 10.0 10.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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