2020 OB
2020 OB
Current distance from Earth
166,332,034km
432.7 lunar distances1.112 AU
Heliocentric orbit · top-down · live
Long-term impact monitoring
2020 OB is tracked on the long-term monitoring list — here’s what the numbers actually mean.
Torino scale
0 — No hazard
Cumulative impact chance
1 in 58,620
1.7e-3% across all dates
Palermo scale
-4.02
below background risk
Possible dates tracked
9
between 2114 and 2122
A Torino rating of 0 means no cause for concern, and a Palermo value of -4.02 — below zero — means the chance is lower than the background risk of a similar random impact over the same period. The headline figure is a cumulative probability spread across 9 possible dates between 2114 and 2122, so the chance on any one date is far smaller still. No impact is predicted, and objects are routinely removed from monitoring as their orbits are refined — both Apophis and 2024 YR4 were.
Orbit class
APO
around the Sun
Orbital period
2.08 yr
760 days
Diameter
65 m
roughly the height of the Statue of Liberty
Eccentricity
0.702
orbit shape
Inclination
25.7°
to the ecliptic
Discovered
—
Size in perspective
70%2020 OB is about 70% the size of the Statue of Liberty.
Observe it tonight
Apparent brightness
mag 27.9
Too faint to observe
Right ascension
17h 40m
Declination
−31° 04′
From your location
tap to check ›
2020 OB is currently faint (magnitude 27.9) — it brightens around close approaches. Position is in equatorial coordinates (J2000); pair it with our sky conditions to plan a session.
Frequently asked questions
Is 2020 OB going to hit Earth?
No impact is predicted. 2020 OB is tracked on the long-term impact-monitoring list with a cumulative chance of roughly 1 in 58,620, spread across 9 possible dates between 2114 and 2122 — a very low probability. Its Torino rating is 0 (no hazard), and its Palermo value of -4.02 sits below the background level. Objects are removed from monitoring as their orbits are refined. The full impact-monitoring breakdown is shown above.
How big is 2020 OB?
2020 OB is estimated at about 65 m across — roughly the height of the Statue of Liberty. Size estimates are derived from how bright the asteroid appears and refined by radar and thermal measurements when it passes close to Earth.
What kind of orbit does 2020 OB have?
2020 OB is APO object. It orbits the Sun once every 2.08 years, on an elliptical path that reaches beyond Earth’s orbit and swings back toward the Sun. The interactive orbit diagram above shows where it is right now.
Can I see 2020 OB through a telescope?
Most of the time 2020 OB is far too faint to see, but during a close approach it can brighten enough for amateur telescopes. Check the close-approach date above, then plan your night with our sky and space-weather tools.
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