2011 HP
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Brightest27 May 201916.31.044 AU0.036 AU13.89 LD5,338,857 km16h51m+08°49'148.5°30.4°
Approach30 May 201916.61.033 AU0.032 AU12.26 LD4,715,271 km18h33m+22°24'126.2°52.4°
Today23 Jul 201921.61.062 AU0.229 AU89.26 LD34,315,782 km01h00m+25°23'95.4°72.2°

Based on its absolute magnitude (Hₒ) of 22.1 and an albedo between 0.25 and 0.05, the estimated diameter of 2011 HP is 100 - 225 m.

2011 HP- 2019-07-23
astro.vanbuitenen.nl


 
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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 lightcurve 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 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.