2019 WR4
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Today15 Dec 201920.31.036 AU0.052 AU20.37 LD7,833,339 km05h04m+16°19'171.4°8.2°
Brightest24 Dec 201919.51.018 AU0.035 AU13.51 LD5,192,756 km06h44m+18°23'170.5°9.2°
Approach31 Dec 201919.81.010 AU0.030 AU11.81 LD4,538,925 km08h41m+16°59'150.5°28.6°

Based on its absolute magnitude (Hₒ) of 26.1 and an albedo between 0.25 and 0.05, the estimated diameter of 2019 WR4 is 15 - 35 m.

2019 WR4- 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.