This object moves — fetching its current position…
Score breakdown
· 4 badges
33 pts · Uncommon
Uncommon34 pts → Rare
Centaur: adrift between the giants+20
Retrograde orbit+8
Kuiper-belt object+5
Catalogue designation only+0
Total score33
1 more point to reach Rare.
Badges
❄️Kuiper-belt object· +5
⏪Retrograde orbit· +8
🔢Catalogue designation only
🦌Centaur: adrift between the giants· +20
✨ Trivia
Hard to believe
🔄Against the traffic. It goes round the Sun backwards, against the direction every planet and almost everything else travels.
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 1.93 AU of the Sun — inside the orbit of Jupiter.
🔁One lap. A single orbit around the Sun takes it about 80.9 years.
🥏How far it roams. Its orbit swings between 1.93 and 35.49 AU from the Sun.
Sense of scale
🧱Sense of scale. In everyday terms it is roughly 0.1× the height of Mount Everest.
Standing on it
🥶Sunlight there. Even at its closest the sunlight is only about 27% as strong as Earth's.
🦘Don't jump. Escape velocity here is only around 0.74 m/s. A determined jump would launch you off it and into your own orbit around the Sun.
Properties
aphelion au
35.49
designation
2025 MH
eccentricity
0.8966
full name
(2025 MH)
h mag
17.32
inclination
175.48
mean motion deg day
0.0122
moid au
0.923
name
2025 MH
number only
yes
orbit class
CEN
perihelion au
1.934
semi major au
18.71
About 2025 MH
2025 MH is an uncommon kbo. It swings within 1.934 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, 2025 MH 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 2025 MH is an uncommon kbo
2025 MH 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, Retrograde orbit, 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.