About (2012 UR158)
(2012 UR158) is an epic neo. It swings within 0.317 AU of the Sun at perihelion.
Its orbit passes close enough to Earth's to be officially monitored.
Epic neo 47 EP
(2012 UR158)
Position computed live · sbdb
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Live ephemeris
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Score breakdown
· 6 badgesEpic 68 pts → Anomaly
- Potentially hazardous +16
- Crosses Earth's orbit +12
- Wildly elliptical orbit +10
- Near-Earth object +5
- Tiny fragment (<1 km) +4
- Catalogue designation only +0
Total score 47
21 more points to reach Anomaly.
Badges
- Near-Earth object · +5
- Potentially hazardous · +16
- Wildly elliptical orbit · +10
- Tiny fragment (<1 km) · +4
- Crosses Earth's orbit · +12
- Catalogue designation only
Trivia
What makes it special
- Potentially hazardous. Its orbit passes close enough to Earth's to be officially monitored.
How we found it
- Designation. Known only by its catalogue designation — no name yet.
Cosmic context
- Wild orbit. Its highly elliptical path swings between scorching and frozen each lap.
- Size. Roughly 0.6 km across.
- Ancient. A leftover from the Solar System's birth, older than every continent on Earth.
Properties
- diameter km
- 0.629
- eccentricity
- 0.8578
- h mag
- 20.67
- inclination
- 3.19
- name
- (2012 UR158)
- number only
- yes
- orbit class
- APO
- perihelion au
- 0.3174
- pha
- yes
- semi major au
- 2.232
How to see it
Like any astronomical target, (2012 UR158) 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 (2012 UR158) is an epic neo
(2012 UR158) scores 47 points on Spacedle's rarity scale, which places it in the epic tier. Another 21 points would lift it into a rarer tier.
That score comes from 6 science badges — Near-Earth object, Potentially hazardous, Wildly elliptical orbit, Tiny fragment (<1 km), Crosses Earth's orbit and Catalogue designation only — 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.