2021 AD
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Today28 Nov 202223.21.208 AU0.256 AU99.64 LD38,308,816 km03h27m+53°34'146.5°26.8°
Brightest9 Jan 202321.20.985 AU0.054 AU21.03 LD8,084,861 km00h18m+34°35'90.3°86.6°
Approach18 Jan 202324.00.957 AU0.035 AU13.46 LD5,176,787 km22h30m-08°29'38.5°140.2°

Based on its absolute magnitude (Hₒ) of 24.6 and an albedo between 0.25 and 0.05, the estimated diameter of 2021 AD is 35 - 75 m.

2021 AD- 2022-11-28
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.