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Uncommon kbo 25 EP

(487581) 2015 BE519

Position computed live · sbdb

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Live ephemeris

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Score breakdown

· 4 badges
25 pts · Uncommon
Uncommon 34 pts → Rare
  • Trans-Neptunian object +12
  • Notably bright (low H) +8
  • Kuiper-belt object +5
  • Catalogue designation only +0
Total score 25

9 more points to reach Rare.

Badges

  • Kuiper-belt object · +5
  • Notably bright (low H) · +8
  • Catalogue designation only
  • Trans-Neptunian object · +12

Trivia

What it actually is

  • Its orbit family. A trans-Neptunian object from the Kuiper Belt, out where the Sun is little more than the brightest star in a very dark sky.
  • One lap. A single orbit around the Sun takes it about 331 years.
  • How far it roams. Its orbit swings between 44.61 and 51.13 AU from the Sun.

Sense of scale

  • Sense of scale. In everyday terms it is about 12.6× the length of Manhattan island.
  • Walk around it. Walking its equator at a steady pace, eight hours a day, would take about 21.4 days.

By the numbers

  • Estimated size. Nobody has measured its size directly. Assuming it reflects light like a typical asteroid, its brightness implies something roughly 272 km across.

What's in a name

  • Designation. Known only by its catalogue designation — no name yet.

Properties

aphelion au
51.13
designation
487581
eccentricity
0.0682
full name
487581 (2015 BE519)
h mag
5.58
inclination
24.7
mean motion deg day
0.003
moid au
43.7
name
(487581) 2015 BE519
number only
yes
orbit class
TNO
perihelion au
44.601
semi major au
47.87

About (487581) 2015 BE519

(487581) 2015 BE519 is an uncommon kbo. It swings within 44.601 AU of the Sun at perihelion.

A trans-Neptunian object from the Kuiper Belt, out where the Sun is little more than the brightest star in a very dark sky.

How to see it

Like any astronomical target, (487581) 2015 BE519 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 (487581) 2015 BE519 is an uncommon kbo

(487581) 2015 BE519 scores 25 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 9 points would lift it into a rarer tier.

That score comes from 4 science badges — Kuiper-belt object, Notably bright (low H), Catalogue designation only and Trans-Neptunian object — 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.