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Uncommon asteroid 27 EP

(15529) 2000 AA80

Position computed live · sbdb

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Score breakdown

· 5 badges
27 pts · Uncommon
Uncommon 34 pts → Rare
  • Trojan +10
  • Notably bright (low H) +8
  • Barely turning (over 100 hours) +8
  • Asteroid +1
  • Catalogue designation only +0
Total score 27

7 more points to reach Rare.

Badges

  • Asteroid · +1
  • Trojan · +10
  • Notably bright (low H) · +8
  • Catalogue designation only
  • Barely turning (over 100 hours) · +8

Trivia

What makes it special

  • Trojan. Locked in a gravitational sweet spot 60° ahead of or behind a much larger body, shepherded there for billions of years.

What it actually is

  • Its orbit family. A Jupiter trojan, parked in a gravitational sweet spot 60° ahead of or behind Jupiter and shepherded there for billions of years. There may be as many trojans as there are main-belt asteroids.
  • Closest approach. At its nearest it comes within 5.12 AU of the Sun — inside the orbit of Jupiter.
  • One lap. A single orbit around the Sun takes it about 12.1 years.
  • How far it roams. Its orbit swings between 5.13 and 5.4 AU from the Sun.

Sense of scale

  • Sense of scale. In everyday terms it is roughly 1.9× the height of Mount Everest.
  • Walk around it. Walking its equator at a steady pace, eight hours a day, would take about 1.3 days.

By the numbers

  • Size. Roughly 16.4 km across.

Properties

albedo
0.198
aphelion au
5.4
designation
15529
diameter km
16.432
eccentricity
0.0262
full name
15529 (2000 AA80)
h mag
11.51
inclination
5.08
mean motion deg day
0.0816
moid au
4.12
name
(15529) 2000 AA80
number only
yes
orbit class
TJN
perihelion au
5.125
rotation period h
375
semi major au
5.263
trojan
yes

About (15529) 2000 AA80

(15529) 2000 AA80 is an uncommon asteroid. It swings within 5.125 AU of the Sun at perihelion.

Locked in a gravitational sweet spot 60° ahead of or behind a much larger body, shepherded there for billions of years.

How to see it

Like any astronomical target, (15529) 2000 AA80 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 (15529) 2000 AA80 is an uncommon asteroid

(15529) 2000 AA80 scores 27 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 7 points would lift it into a rarer tier.

That score comes from 5 science badges — Asteroid, Trojan, Notably bright (low H), Catalogue designation only and Barely turning (over 100 hours) — 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.