2015 BK509
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Brightest24 Feb 202018.01.033 AU0.060 AU23.34 LD8,971,843 km07h28m+23°20'135.8°41.9°
Approach29 Feb 202018.70.996 AU0.048 AU18.66 LD7,172,550 km04h56m+13°58'94.8°82.4°
Today25 May 202024.20.747 AU0.930 AU362.01 LD139,180,922 km01h13m+05°21'44.9°73.4°

Based on its absolute magnitude (Hₒ) of 22.4 and an albedo between 0.25 and 0.05, the estimated diameter of 2015 BK509 is 90 - 195 m.

2015 BK509- 2020-05-25

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The interactive orbit chart above shows the near-earth object's path through the solar system and its position at the given date. Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below.

(Left-click and drag to rotate the view; right-click and drag to move the view; use scroll wheel to zoom in our out.)

The light curve chart below shows the estimated development of the NEO's magnitude during its approach to earth.

The following all-sky chart shows the path of the NEO in the coming months.

The following chart shows the path of the NEO in the coming days or hours. The field of view is optimized for (~10x50) binoculars and finderscopes. A more printer-friendly version of the same chart can be found below.