About 4544 Xanthus (1989 FB)
4544 Xanthus (1989 FB) is an uncommon neo. It swings within 0.781 AU of the Sun at perihelion.
Roughly 1.3 km across.
Uncommon neo 25 EP
4544 Xanthus (1989 FB)
Position computed live · sbdb
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Live ephemeris
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Score breakdown
· 3 badgesUncommon 33 pts → Rare
- Crosses Earth's orbit +12
- Has a proper name +8
- Near-Earth object +5
Total score 25
8 more points to reach Rare.
Badges
- Near-Earth object · +5
- Crosses Earth's orbit · +12
- Has a proper name · +8
Trivia
How we found it
- Named. Notable enough to have earned a proper name, not just a catalogue number.
Cosmic context
- Size. Roughly 1.3 km across.
- Ancient. A leftover from the Solar System's birth, older than every continent on Earth.
Properties
- diameter km
- 1.3
- eccentricity
- 0.2502
- h mag
- 17.39
- inclination
- 14.14
- name
- 4544 Xanthus (1989 FB)
- named
- yes
- orbit class
- APO
- perihelion au
- 0.7813
- semi major au
- 1.042
How to see it
Like any astronomical target, 4544 Xanthus (1989 FB) 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 4544 Xanthus (1989 FB) is an uncommon neo
4544 Xanthus (1989 FB) scores 25 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 8 points would lift it into a rarer tier.
That score comes from 3 science badges — Near-Earth object, Crosses Earth's orbit and Has a proper name — 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.