2019 WH4
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Brightest1 Dec 201919.31.001 AU0.015 AU6.02 LD2,314,794 km04h29m+00°51'159.1°20.6°
Approach2 Dec 201919.40.999 AU0.015 AU5.83 LD2,240,236 km05h26m-02°51'151.8°27.7°
Today15 Dec 201924.00.994 AU0.061 AU23.80 LD9,149,758 km10h29m-14°31'97.0°79.5°

Based on its absolute magnitude (Hₒ) of 27.3 and an albedo between 0.25 and 0.05, the estimated diameter of 2019 WH4 is 9 - 21 m.

2019 WH4- 2019-12-15
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 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.