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Uncommon kbo 25 EP

(523678) 2013 XB26

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 310 years.
  • How far it roams. Its orbit swings between 45.28 and 46.28 AU from the Sun.
  • Near-perfect circle. Its orbit is almost exactly circular — rounder than Earth's.

Sense of scale

  • Sense of scale. In everyday terms it is about 13.9× the length of Manhattan island.
  • Walk around it. Walking its equator at a steady pace, eight hours a day, would take about 23.6 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 301 km across.

What's in a name

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

Properties

aphelion au
46.28
designation
523678
eccentricity
0.0109
full name
523678 (2013 XB26)
h mag
5.36
inclination
3.58
mean motion deg day
0.0032
moid au
44.3
name
(523678) 2013 XB26
number only
yes
orbit class
TNO
perihelion au
45.282
semi major au
45.78

About (523678) 2013 XB26

(523678) 2013 XB26 is an uncommon kbo. It swings within 45.282 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, (523678) 2013 XB26 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 (523678) 2013 XB26 is an uncommon kbo

(523678) 2013 XB26 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.