2026 HO3 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.77 AU to 1.28 AU from the Sun; one orbit takes 378.3 days. Orbit from the JPL solution of 3 June 2026.
Where is it now
- Distance from Sun
- 1.04 AU
- True anomaly
- 107.95°
- Distance from Earth
- 0.85 AU
- As of
- 3 November 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
In the sky
- Right ascension
- 10h 02m 07s
- Declination
- -04° 38′ 25″
- Constellation
- Sextans
- Distance from Earth
- 0.85 AU
- Elongation from the Sun
- 68.48° — well clear of the Sun
Visible from both hemispheres.
From your location
See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.
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Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.
Orbital elements
- Semi-major axis
- 1.024 AU
- Eccentricity
- 0.2464
- Inclination
- 12.68°
- Orbital period
- 378.3 days
- Perihelion
- 0.771 AU
- Aphelion
- 1.276 AU
- Longitude of ascending node
- 181.8°
- Argument of periapsis
- 159.75°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 67.2 LD
- 0.1726 AU
- Tisserand (Jupiter)
- 5.922
Orbit quality
Orbit poorly determined (uncertainty code 6).
- Observations used
- 48
- Data arc
- 31 days
- First observed
- 11 April 2026
- Last observed
- 12 May 2026
- Residual RMS
- 0.59 ″
- Solution · Otto Matic
- 3 June 2026
Visual & observation
- Absolute magnitude (H)
- 23.28
Discovery & classification
Close approaches 21 on record
Top-down view of the ecliptic, Earth at the centre, for the 2029-10-18 04:48 UTC close approach of 2026 HO3. Catalogue miss distance 77.0 LD · 2.96 × 10⁷ km. The curve is the geocentric path from 2029-10-15 to 2029-10-21, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. At closest approach the object is south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2029-10-18 04:48:00 | Earth | 0.1978 AU | 77.0 LD | 10 km/s |
| 2039-01-29 12:09:00 | Venus | 0.0754 AU | 29.4 LD | 10.3 km/s |
| 2055-04-26 08:07:00 | Earth | 0.1815 AU | 70.6 LD | 8.3 km/s |
| 2058-10-06 01:46:00 | Venus | 0.066 AU | 25.7 LD | 9.6 km/s |
| 2058-10-20 00:01:00 | Earth | 0.197 AU | 76.7 LD | 9.9 km/s |
| 2078-06-12 20:57:00 | Venus | 0.0745 AU | 29.0 LD | 9.1 km/s |
| 2098-02-17 10:30:00 | Venus | 0.1163 AU | 45.3 LD | 8.9 km/s |
| 2120-11-25 17:43:00 | Venus | 0.0816 AU | 31.8 LD | 10.5 km/s |
| 2140-08-02 08:37:00 | Venus | 0.0665 AU | 25.9 LD | 9.8 km/s |
| 2160-04-09 06:28:00 | Venus | 0.066 AU | 25.7 LD | 9.4 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB