2007 HL4
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Today24 Feb 202021.71.021 AU0.102 AU39.63 LD15,237,638 km14h56m+74°10'105.5°69.0°
Approach16 Apr 202018.21.034 AU0.035 AU13.62 LD5,237,213 km12h43m+15°14'151.2°27.9°
Brightest19 Apr 202018.11.037 AU0.036 AU13.88 LD5,335,494 km12h37m+04°54'155.8°23.4°

Based on its absolute magnitude (Hₒ) of 24.2 and an albedo between 0.25 and 0.05, the estimated diameter of 2007 HL4 is 40 - 85 m.

2007 HL4- 2020-02-24
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.