Astronomy:2012 BX34
From HandWiki
| Discovery[1] | |
|---|---|
| Discovered by | Catalina Sky Survey |
| Discovery date | 25 January 2012 |
| Designations | |
| Minor planet category | Aten |
| Orbital characteristics[2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| |{{{apsis}}}|helion}} | 1.0332 astronomical unit|AU (154.56 Gm) (Q) |
| |{{{apsis}}}|helion}} | 0.48892 AU (73.141 Gm) (q) |
| 0.76105 AU (113.851 Gm) (a) | |
| Eccentricity | 0.35757 (e) |
| Orbital period | 0.66 yr (242.5 d) |
| Average Orbital speed | 1.48200135°/day |
| Mean anomaly | 211.76° (M) |
| Mean motion | 1.4845°/day (n) |
| Inclination | 10.527° (i) |
| Longitude of ascending node | 306.74° (Ω) |
| 335.834° (ω) | |
| Earth MOID | 0.000288322 AU (43,132.4 km) |
| Jupiter MOID | 4.09701 AU (612.904 Gm) |
| Physical characteristics | |
| Dimensions | ~8 meters (26 ft)[3][4] |
| Rotation period | 1.80828 h (0.075345 d)[2] |
| Apparent magnitude | ~13.9[5] to 30.3 |
| Absolute magnitude (H) | 27.6[2] |
2012 BX34 is a small Aten asteroid that made one of the closest recorded asteroid close approaches of Earth on 27 January 2012. It passed within 0.0004371 astronomical unit|AU (65,390 km; 40,630 mi) of Earth during its closest approach at 15:25 GMT.[6] 2012 BX34 measures around 8 meters (26 ft) across; if it had impacted in 2012, it would have been too small to pass through Earth's atmosphere intact.[7]
During its 2012 close approach to Earth, 2012 BX34 had a brightest apparent magnitude of about 13.9,[5] making it about as bright as the dwarf planet Pluto. By 25 February 2012, it had dimmed to magnitude 30.[1] During its close approach of 0.0246 AU (3,680,000 km; 2,290,000 mi) on 28 January 2014,[6] it will only reach a magnitude of about 23.[8] 2012 BX34 has been observed in more detail using radar astronomy.[9]
See also
- List of asteroid close approaches to Earth in 2012
References
- ↑ 1.0 1.1 "MPEC 2012-B62 : 2012 BX34". IAU Minor Planet Center. 26 January 2012. http://www.minorplanetcenter.net/mpec/K12/K12B62.html. Retrieved 29 January 2012.
- ↑ 2.0 2.1 2.2 "JPL Small-Body Database Browser: (2012 BX34)". Jet Propulsion Laboratory. 27 January 2012. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2012BX34. Retrieved 1 April 2016.
- ↑ "Images taken by legendary comet and asteroid hunter Rob McNaught tonight using T17 in Spain". iTelescope. 27 January 2012. http://itelescope.squarespace.com/home/2012/1/27/neo-bx34-a-close-encounter.html. Retrieved 29 January 2012.
- ↑ Dr. Lance A. M. Benner (26 January 2012). "2012 BX34 Goldstone Radar Observations Planning". NASA/JPL Asteroid Radar Research. http://echo.jpl.nasa.gov/asteroids/2012BX34/2012BX34_planning.html. Retrieved 29 January 2012.
- ↑ 5.0 5.1 "NEODyS 2012BX34 Ephemerides for 27 January 2012". AstDyS-2 (Asteroids – Dynamic Site). https://newton.spacedys.com/neodys/index.php?pc=1.1.3.1&n=2012BX34&oc=500&y0=2012&m0=1&d0=27&h0=0&mi0=0&y1=2012&m1=1&d1=28&h1=0&mi1=0&ti=1&tiu=hours. Retrieved 29 January 2012.
- ↑ 6.0 6.1 "JPL Close-Approach Data: (2012 BX34)". 27 January 2012. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2012BX34;cad=1#cad. Retrieved 29 January 2012.
- ↑ AsteroidWatch (26 January 2012). "It wouldn't get through our atmosphere intact even if it dared to try". NASA/JPL Near-Earth Object Program Office. https://twitter.com/AsteroidWatch/status/162638876991692800. Retrieved 29 January 2012.
- ↑ "NEODyS 2012BX34 Ephemerides for 28 January 2014". AstDyS-2 (Asteroids – Dynamic Site). https://newton.spacedys.com/neodys/index.php?pc=1.1.3.1&n=2012BX34&oc=500&y0=2014&m0=1&d0=01&h0=0&mi0=0&y1=2014&m1=2&d1=14&h1=0&mi1=0&ti=1.0&tiu=days. Retrieved 30 January 2012.
- ↑ "Radar-Detected Asteroids and Comets". NASA/JPL Asteroid Radar Research. http://echo.jpl.nasa.gov/asteroids/. Retrieved 21 March 2012.
External links
- "Zippy little asteroid 2012 BX34 makes a quick visit". Astro Bob. 27 January 2012. Retrieved 11 July 2013.
- 2012 BX34 – Close Approach. (Ernesto Guido, Giovanni Sostero & Nick Howes). 27 January 2012. Retrieved 11 July 2013.
- "Asteroid makes near-miss fly-by". BBC. 27 January 2012. Retrieved 11 July 2013.
- "Bus-Size Asteroid Buzzes Earth in Close Flyby". Space.com. 27 January 2012. Retrieved 11 July 2013.
- 2012 BX34 at NeoDyS-2, Near Earth Objects—Dynamic Site
- Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
- 2012 BX34 at ESA–space situational awareness
- 2012 BX34 at the JPL Small-Body Database
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