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Rare kbo 47 EP

2004 MT8

Position computed live · sbdb

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Live ephemeris

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Score breakdown

· 5 badges
47 pts · Rare
Rare 50 pts → Epic
  • Spinning past the rubble-pile limit +22
  • Trans-Neptunian object +12
  • Notably bright (low H) +8
  • Kuiper-belt object +5
  • Catalogue designation only +0
Total score 47

3 more points to reach Epic.

Badges

  • Kuiper-belt object · +5
  • Notably bright (low H) · +8
  • Catalogue designation only
  • Trans-Neptunian object · +12
  • Spinning past the rubble-pile limit · +22

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 282 years.
  • How far it roams. Its orbit swings between 40.98 and 44.94 AU from the Sun.

Sense of scale

  • Sense of scale. In everyday terms it is about 8.3× the length of Manhattan island.
  • Walk around it. Walking its equator at a steady pace, eight hours a day, would take about 14 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 179 km across.

What's in a name

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

Properties

aphelion au
44.94
designation
2004 MT8
eccentricity
0.046
full name
(2004 MT8)
h mag
6.49
inclination
2.24
mean motion deg day
0.0035
moid au
40
name
2004 MT8
number only
yes
orbit class
TNO
perihelion au
40.987
rotation period h
2
semi major au
42.96

About 2004 MT8

2004 MT8 is a rare kbo. It swings within 40.987 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, 2004 MT8 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 2004 MT8 is a rare kbo

2004 MT8 scores 47 points on Spacedle's rarity scale, which places it in the rare tier. Another 3 points would lift it into a rarer tier.

That score comes from 5 science badges — Kuiper-belt object, Notably bright (low H), Catalogue designation only, Trans-Neptunian object and Spinning past the rubble-pile limit — 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.