2021 CU3
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Brightest18 Feb 202117.71.026 AU0.049 AU19.00 LD7,306,577 km11h54m+45°01'139.5°38.7°
Approach20 Feb 202118.21.002 AU0.041 AU16.03 LD6,162,801 km14h56m+67°23'107.5°70.3°
Today7 Mar 202126.40.798 AU0.228 AU88.80 LD34,139,486 km21h57m+16°23'28.2°144.0°

Based on its absolute magnitude (Hₒ) of 22.7 and an albedo between 0.25 and 0.05, the estimated diameter of 2021 CU3 is 80 - 175 m.

2021 CU3- 2021-03-07

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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.