About Kamo`oalewa
Kamo`oalewa is a rare neo. It swings within 0.898 AU of the Sun at perihelion.
Its orbit genuinely intersects Earth's track around the Sun. The two paths cross; only the timing keeps them apart.
Rare neo 47 EP
Kamo`oalewa
Position computed live · sbdb
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Live ephemeris
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Score breakdown
· 5 badgesRare 50 pts → Epic
- Spinning past the rubble-pile limit +22
- Crosses Earth's orbit +8
- Has a proper name +8
- Near-Earth object +5
- Apollo: crosses Earth's orbit +4
Total score 47
3 more points to reach Epic.
Badges
- Near-Earth object · +5
- Crosses Earth's orbit · +8
- Has a proper name · +8
- Apollo: crosses Earth's orbit · +4
- Spinning past the rubble-pile limit · +22
Trivia
What makes it special
- It crosses our path. Its orbit genuinely intersects Earth's track around the Sun. The two paths cross; only the timing keeps them apart.
What it actually is
- Its orbit family. An Apollo-class object: its orbit is wider than Earth's but crosses it. Most known Earth-crossers belong to this family.
- Closest approach. At its nearest it comes within 0.9 AU of the Sun — inside the orbit of Earth.
- One lap. A single orbit around the Sun takes it about 1 years.
- How far it roams. Its orbit swings between 0.9 and 1.1 AU from the Sun.
Sense of scale
- Sense of scale. In everyday terms it is about 0.5 football pitches across.
Standing on it
- Don't jump. Escape velocity here is only around 0.03 m/s. A determined jump would launch you off it and into your own orbit around the Sun.
By the numbers
- Estimated size. Nobody has measured its size directly. Assuming it reflects light like a typical asteroid, its brightness implies something roughly 49 metres across.
Properties
- aphelion au
- 1.1
- designation
- 469219
- eccentricity
- 0.1022
- full name
- 469219 Kamo`oalewa (2016 HO3)
- h mag
- 24.31
- inclination
- 7.8
- mean motion deg day
- 0.9844
- moid au
- 0.0301
- name
- Kamo`oalewa
- named
- yes
- orbit class
- APO
- perihelion au
- 0.898
- rotation period h
- 0.467
- semi major au
- 1.001
How to see it
Like any astronomical target, Kamo`oalewa 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 Kamo`oalewa is a rare neo
Kamo`oalewa 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 — Near-Earth object, Crosses Earth's orbit, Has a proper name, Apollo: crosses Earth's orbit 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.