Map of the Universe

2I/Borisov

Interstellar object · Interstellar comet in 2019

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2I/Borisov
Picture: NASA, ESA, and D. Jewitt (UCLA), Public domain, via Wikimedia Commons.

About 2I/Borisov

On 2026-01-01, the date the map shows, 2I/Borisov was 43.5 AU from the Sun; sunlight takes 6.02 hours to reach it.

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

Key numbers

Perihelion1.998 AU
OrbitHyperbolic (unbound)
Eccentricity3.3467
Inclination44.27°
Radius500 m
Distance from the Sun43.5 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

2I/Borisov, originally designated C/2019 Q4 (Borisov), is the first observed rogue comet and the second observed interstellar interloper, after ʻOumuamua. It was discovered by the amateur astronomer and telescope maker Gennadiy Borisov on 29 August 2019 UTC in MARGO Observatory.

Excerpt from the Wikipedia article 2I/Borisov, licensed CC BY-SA 4.0.

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