2004 YC
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Today22 Oct 202130.10.701 AU0.334 AU129.96 LD49,963,588 km15h18m-06°21'23.4°145.7°
Approach15 Dec 202120.71.003 AU0.039 AU15.16 LD5,827,083 km09h43m+08°15'117.7°60.4°
Brightest20 Dec 202120.21.025 AU0.046 AU18.01 LD6,923,960 km07h31m+06°49'151.1°27.7°

Based on its absolute magnitude (Hₒ) of 25.6 and an albedo between 0.25 and 0.05, the estimated diameter of 2004 YC is 20 - 45 m.

2004 YC- 2021-10-22
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.