2025 OR5 is an asteroid in the Apollo orbit class. Its orbit takes it from 1.01 AU to 1.06 AU from the Sun; one orbit takes 385.2 days. Orbit from the JPL solution of 2 August 2025.
Where is it now
- Distance from Sun
- 1.058 AU
- True anomaly
- 145.69°
- Distance from Earth
- 0.451 AU
- As of
- 4 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
- 20h 53m 48s
- Declination
- -28° 16′ 11″
- Constellation
- Microscopium
- Distance from Earth
- 0.45 AU
- Elongation from the Sun
- 85.67° — well clear of the Sun
Favours the southern hemisphere; low or below the horizon from far north.
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
- 1.036 AU
- Eccentricity
- 0.026
- Inclination
- 4.68°
- Orbital period
- 385.2 days
- Perihelion
- 1.009 AU
- Aphelion
- 1.063 AU
- Longitude of ascending node
- 127.28°
- Argument of periapsis
- 104.61°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 4.8 LD
- 0.0122 AU
- Tisserand (Jupiter)
- 5.912
Orbit quality
Orbit reasonably well determined (uncertainty code 5).
- Observations used
- 36
- Data arc
- 5 days
- First observed
- 27 July 2025
- Last observed
- 1 August 2025
- Residual RMS
- 0.48 ″
- Solution · Otto Matic
- 2 August 2025
Visual & observation
- Absolute magnitude (H)
- 28.41
Discovery & classification
Close approaches 12 on record
Top-down view of the ecliptic, Earth at the centre, for the 2044-03-17 00:15 UTC close approach of 2025 OR5. Catalogue miss distance 41.9 LD · 1.61 × 10⁷ km. The curve is the geocentric path from 2044-03-14 to 2044-03-20, 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 north 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 |
|---|---|---|---|---|
| 2044-03-17 00:15:00 | Earth | 0.1076 AU | 41.9 LD | 3.9 km/s |
| 2044-08-08 05:41:00 | Earth | 0.1046 AU | 40.7 LD | 3 km/s |
| 2064-03-18 08:22:00 | Earth | 0.1191 AU | 46.3 LD | 4.2 km/s |
| 2065-07-30 20:35:00 | Earth | 0.1885 AU | 73.3 LD | 6.8 km/s |
| 2085-07-26 07:57:00 | Earth | 0.0122 AU | 4.7 LD | 2.7 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