(137924) 2000 BD19

Asteroid March 2020 yes #FFC2E0 (137924) 2000 BD 19 LINEAR 26 January 2000 NEO Aten Mercury crosser Venus crosser Earth crosser Mars grazer https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=137924;cad=1 137924 (2000 BD19) JPL Small-Body Database NASA/Jet Propulsion Laboratory 7 April 2016AstDys-2 on (127924) 2000 BD19 Retrieved 2011-09-12 13 January 2016 (JD 2457400.5) 6960 days (19.06 yr) 0 0.876497123 AU Gm on 0.092057468 AU Gm on 1.66093678 AU Gm on on 0.8949712 0.82 yr (299.7 d) 25.716450° 333.73148° 324.31756° 1.2010977°/day 328.94867° 0.0904402 AU Gm on 0.97 km 10.570 h d on on 0.247NeoDys-2 on (127924) 2000 BD19 Retrieved 2011-09-12 V 17.2 (137924) 2000 BD 19 is a 970-meter asteroid and near-Earth object with the second smallest perihelion of any numbered asteroid (0.092 AU—38% of Mercury's orbital radius). With its high eccentricity, not only does 2000 BD 19 get very close to the Sun, but it also travels relatively far away from it. It has the third largest aphelion of any numbered Aten asteroidList of Aten asteroids sorted by Q in decreasing order, generated by the JPL Small-Body Database Search Engine Retrieved 2011-09-12 and is one of a small group of Aten asteroids that is also a Mars grazer.List of Aten asteroids with Q>1.38 AU and sorted by Q in decreasing order, generated by the JPL Small-Body Database Search Engine Retrieved 2011-09-12 Its orbital elements indicate that it may be an extinct comet, but it has not been seen displaying cometary activity so far. 2000 BD 19 was discovered by LINEAR in January 2000 and was soon after located by DANEOPS on Palomar plates from 10 February 1997. This allowed a reasonably precise orbit determination, and as a result it was spotted again on 27 February 2001 and 21 January 2002. When it was discovered, it beat 1995 CR's record for both asteroid with the smallest perihelion and for Aten asteroid with the highest eccentricity. It is estimated that 2000 BD 19's surface temperature reaches ~920 K at perihelion, enough to melt lead and zinc, and nearly enough to melt aluminium. The asteroid would be hot enough to incandesce red being above the Draper Point at closest approach. 2000 BD 19 is considered a good candidate for measuring the effects of Albert Einstein's general theory of relativity because of how close it comes to the Sun.Margot, Jean-Luc Measuring asteroidal perihelion advance to measure solar oblateness and test general relativity, retrieved 22 December 2007. 2000 BD 19 shares noticeable orbit similarities with two other low-perihelion asteroids: (425755) 2011 CP 4 and 1995 CR, their longitude of perihelion differing by only 9.9 and 7.1 degrees, respectively. Combined with their similar semimajor axis (average distance from the Sun) of 0.877, 0.911, and 0.907 astronomical units respectively, they could possibly be fragments of 2000 BD 19 that separated from it in the past.March 2020 References External links MPEC 2000-C49 137924 137924 137924 137924 (137924) 2000 BD 19 137924 137924 137924 137924 20000126