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Uncommon kbo 33 EP

(532094) 2013 HX156

Position computed live · sbdb

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Live ephemeris

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Score breakdown

· 4 badges
33 pts · Uncommon
Uncommon 34 pts → Rare
  • Centaur: adrift between the giants +20
  • Notably bright (low H) +8
  • Kuiper-belt object +5
  • Catalogue designation only +0
Total score 33

1 more point to reach Rare.

Badges

  • Kuiper-belt object · +5
  • Notably bright (low H) · +8
  • Catalogue designation only
  • Centaur: adrift between the giants · +20

Trivia

What it actually is

  • Its orbit family. A centaur, wandering between the orbits of Jupiter and Neptune on a path nothing can stabilise. Half asteroid and half comet, and gone from this orbit within a few million years.
  • Closest approach. At its nearest it comes within 19.56 AU of the Sun — inside the orbit of Neptune.
  • One lap. A single orbit around the Sun takes it about 120 years.
  • How far it roams. Its orbit swings between 19.56 and 29.16 AU from the Sun.

Sense of scale

  • Sense of scale. In everyday terms it is about 3.9× the length of Manhattan island.
  • Walk around it. Walking its equator at a steady pace, eight hours a day, would take about 6.6 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 84 km across.

What's in a name

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

Properties

aphelion au
29.16
designation
532094
eccentricity
0.197
full name
532094 (2013 HX156)
h mag
8.13
inclination
14.92
mean motion deg day
0.0082
moid au
18.6
name
(532094) 2013 HX156
number only
yes
orbit class
CEN
perihelion au
19.563
semi major au
24.36

About (532094) 2013 HX156

(532094) 2013 HX156 is an uncommon kbo. It swings within 19.563 AU of the Sun at perihelion.

A centaur, wandering between the orbits of Jupiter and Neptune on a path nothing can stabilise. Half asteroid and half comet, and gone from this orbit within a few million years.

How to see it

Like any astronomical target, (532094) 2013 HX156 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 (532094) 2013 HX156 is an uncommon kbo

(532094) 2013 HX156 scores 33 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 1 point 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 Centaur: adrift between the giants — 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.