2017 AS4
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Approach14 Jun 202023.01.020 AU0.045 AU17.56 LD6,751,122 km12h24m+18°23'94.5°83.0°
Brightest16 Jun 202022.51.047 AU0.053 AU20.70 LD7,958,191 km14h17m+02°17'124.3°53.3°
Today7 Jul 202025.51.266 AU0.271 AU105.39 LD40,518,184 km17h13m-21°53'154.1°20.5°

Based on its absolute magnitude (Hₒ) of 26.8 and an albedo between 0.25 and 0.05, the estimated diameter of 2017 AS4 is 10 - 25 m.

2017 AS4- 2020-07-07

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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.