Map of the Universe

Aya

Asteroid · Classical Kuiper belt object

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Aya
Picture: Michael E. Brown/STScI/NASA, image processed by Nrco0e, Public domain, via Wikimedia Commons.

About Aya

On 2026-01-01, the date the map shows, Aya was 44.6 AU from the Sun; sunlight takes 6.18 hours to reach it.

It goes round the Sun once every 326.0 years, at an average distance of 47.369 AU.

The map lists it as an asteroid (trans-Neptunian object) and shows it in the Solar System part of the map, drawn on the plane of Earth’s orbit (the ecliptic).

Key numbers

ClassTrans-Neptunian object
Semi-major axis47.369 AU
Orbital period326.0 years
Eccentricity0.1287
Inclination24.34°
Absolute magnitude (H)3.44
Diameter≈ 862 km (estimated from brightness)
Distance from the Sun44.6 AU

Where it is

Its place in the universe, from the inside out: Solar System › Orion–Cygnus Arm (Local Arm) › Milky Way › Local Group › Virgo Supercluster › Laniakea Supercluster › Observable universe.

Zoom out to see it in context: Neptune and the Kuiper belt, a view about 110 AU across.

From Wikipedia

55565 Aya (provisional designation 2002 AW197) is a large trans-Neptunian object in the classical Kuiper belt. It was discovered on 10 January 2002 by astronomers at Palomar Observatory. Aya is around 800 km (500 mi) in diameter, with no rings or atmosphere beyond 90 nanobars of pressure.

Excerpt from the Wikipedia article 55565 Aya, licensed CC BY-SA 4.0.

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