221455
221455
Current distance from Earth
33,508,654km
87.2 lunar distances0.224 AU
Heliocentric orbit · top-down · live
Next close approach
2026-Aug-28
Passes 9.3 lunar distances from Earth — about 3,584,833 km, closing at 19.0 km/s.
Orbit class
APO
around the Sun
Orbital period
2.87 yr
1049 days
Diameter
443 m
about the height of the Empire State Building
Eccentricity
0.657
orbit shape
Inclination
0.9°
to the ecliptic
Discovered
—
Size in perspective
1.3×221455 is 1.3× the size of the Eiffel Tower.
Observe it tonight
Apparent brightness
mag 17.5
Observatory-class only
Right ascension
11h 26m
Declination
+0° 09′
From your location
tap to check ›
221455 is currently faint (magnitude 17.5) — it brightens around close approaches. Position is in equatorial coordinates (J2000); pair it with our sky conditions to plan a session.
Frequently asked questions
How close does 221455 come to Earth?
Its next notable close approach is on 2026-Aug-28, when it passes about 9.3 lunar distances from Earth — roughly 3,584,833 km. 221455 is currently about 87 lunar distances away — the live orbit and distance are shown above.
Is 221455 going to hit Earth?
No impact is predicted. 221455 is classified as a potentially hazardous asteroid, which means its orbit brings it relatively close to Earth — but classification is about proximity, not an impending collision. Its trajectory is continuously refined as new observations are gathered, and predicted close approaches are calculated decades ahead. Its live position and orbit are shown above.
How big is 221455?
221455 is estimated at about 443 m across — about the height of the Empire State Building. 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 221455 have?
221455 is APO object. It orbits the Sun once every 2.87 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 221455 through a telescope?
Most of the time 221455 is far too faint to see, but during a close approach it can brighten enough for amateur telescopes, and the largest near-Earth asteroids occasionally reach binocular range. Check the close-approach date above, then plan your night with our sky and space-weather tools.
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