About 211871 (2004 HO)
211871 (2004 HO) is a common neo. It swings within 0.901 AU of the Sun at perihelion.
Roughly 0.4 km across.
Common neo 21 EP
211871 (2004 HO)
Position computed live · sbdb
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Live ephemeris
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Score breakdown
· 4 badgesCommon 24 pts → Uncommon
- Crosses Earth's orbit +12
- Near-Earth object +5
- Tiny fragment (<1 km) +4
- Catalogue designation only +0
Total score 21
3 more points to reach Uncommon.
Badges
- Near-Earth object · +5
- Tiny fragment (<1 km) · +4
- Crosses Earth's orbit · +12
- Catalogue designation only
Trivia
How we found it
- Designation. Known only by its catalogue designation — no name yet.
Cosmic context
- Size. Roughly 0.4 km across.
- Ancient. A leftover from the Solar System's birth, older than every continent on Earth.
Properties
- diameter km
- 0.411
- eccentricity
- 0.5119
- h mag
- 18.85
- inclination
- 7.89
- name
- 211871 (2004 HO)
- number only
- yes
- orbit class
- APO
- perihelion au
- 0.901
- semi major au
- 1.846
How to see it
Like any astronomical target, 211871 (2004 HO) 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 211871 (2004 HO) is a common neo
211871 (2004 HO) scores 21 points on Spacedle's rarity scale, which places it in the common tier. Another 3 points would lift it into a rarer tier.
That score comes from 4 science badges — Near-Earth object, 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.