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Uncommon neo 31 EP

2023 OF5

Position computed live · sbdb

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Live ephemeris

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Score breakdown

· 5 badges
31 pts · Uncommon
Uncommon 34 pts → Rare
  • Potentially hazardous +12
  • Wildly elliptical orbit +10
  • Near-Earth object +5
  • Apollo: crosses Earth's orbit +4
  • Catalogue designation only +0
Total score 31

3 more points to reach Rare.

Badges

  • Near-Earth object · +5
  • Potentially hazardous · +12
  • Wildly elliptical orbit · +10
  • Catalogue designation only
  • Apollo: crosses Earth's orbit · +4

Trivia

Handle with care

  • What 'hazardous' means. 'Potentially hazardous' is bookkeeping, not a prediction: it means the orbit passes within 0.05 AU of Earth's and the body is big enough to matter. Nothing on that list is known to be on a collision course.
  • If it ever hit. A rock this size arriving at a typical 20 km/s would release around 703 megatons — about 14.1 times the largest bomb ever detonated.

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 0.18 AU of the Sun — inside the orbit of Mercury.
  • One lap. A single orbit around the Sun takes it about 2.4 years.
  • How far it roams. Its orbit swings between 0.18 and 3.37 AU from the Sun.

Sense of scale

  • Sense of scale. In everyday terms it is about 2.1 football pitches across.

Standing on it

  • Sunlight there. At closest approach the Sun beats down about 31.6 times harder than it ever does on Earth.

Properties

aphelion au
3.37
designation
2023 OF5
eccentricity
0.8997
full name
(2023 OF5)
h mag
21.03
inclination
11.4
mean motion deg day
0.4177
moid au
0.033
name
2023 OF5
number only
yes
orbit class
APO
perihelion au
0.178
pha
yes
semi major au
1.772

About 2023 OF5

2023 OF5 is an uncommon neo. It swings within 0.178 AU of the Sun at perihelion.

An Apollo-class object: its orbit is wider than Earth's but crosses it. Most known Earth-crossers belong to this family.

How to see it

Like any astronomical target, 2023 OF5 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 2023 OF5 is an uncommon neo

2023 OF5 scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 3 points would lift it into a rarer tier.

That score comes from 5 science badges — Near-Earth object, Potentially hazardous, Wildly elliptical orbit, Catalogue designation only and Apollo: crosses Earth's orbit — 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.