Anomaly comet 94 EP

C/2019 Q4 (Borisov)

Position computed live · sbdb

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Live ephemeris

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Score breakdown

· 3 badges

94 pts · Anomaly

Anomaly 95 pts → Mythic

Interstellar visitor +80
Has a proper name +8
Comet +6

Total score 94

1 more point to reach Mythic.

Badges

Comet · +6
Interstellar visitor · +80
Has a proper name · +8

Trivia

What makes it special

Interstellar. A visitor from another star system — it doesn't belong to our Sun at all.

How we found it

Named. Notable enough to have earned a proper name, not just a catalogue number.

Cosmic context

One-way trip. On a hyperbolic path — it will leave the Solar System and never return.
Tail. Its tail always points away from the Sun, never trailing behind its motion.

Properties

eccentricity: 3.3565
inclination: 44.05
interstellar: yes
name: C/2019 Q4 (Borisov)
named: yes
orbit class: HYP
perihelion au: 2.0066
semi major au: -0.8515

About C/2019 Q4 (Borisov)

C/2019 Q4 (Borisov) is an anomaly comet. It swings within 2.007 AU of the Sun at perihelion.

A visitor from another star system — it doesn't belong to our Sun at all.

How to see it

Like any astronomical target, C/2019 Q4 (Borisov) is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. Because it moves against the background stars, the live position panel on this page tracks where it is right now. The visibility panel above works out tonight's viewing window for your saved location.

Why C/2019 Q4 (Borisov) is an anomaly comet

C/2019 Q4 (Borisov) scores 94 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 1 point would lift it into a rarer tier.

That score comes from 3 science badges — Comet, Interstellar visitor and Has a proper name — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.