2020 RA4
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Brightest14 Sep 202019.51.035 AU0.029 AU11.45 LD4,401,079 km23h47m-03°36'176.0°3.9°
Approach15 Sep 202019.71.034 AU0.029 AU11.29 LD4,341,472 km00h02m+05°00'169.7°10.0°
Today20 Sep 202021.21.031 AU0.036 AU14.08 LD5,411,473 km01h09m+37°56'136.9°41.8°

Based on its absolute magnitude (Hₒ) of 26.7 and an albedo between 0.25 and 0.05, the estimated diameter of 2020 RA4 is 10 - 25 m.

2020 RA4- 2020-09-20
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.