2025 HV18 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.86 AU to 1.17 AU from the Sun; one orbit takes 372.1 days. Orbit from the JPL solution of 26 April 2026.
Where is it now
- Distance from Sun
- 0.868 AU
- True anomaly
- 337.44°
- Distance from Earth
- 0.268 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
- 18h 22m 44s
- Declination
- -42° 37′ 50″
- Constellation
- Corona Australis
- Distance from Earth
- 0.27 AU
- Elongation from the Sun
- 55.17° — near the Sun — look low at dusk or dawn
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
- 1.012 AU
- Eccentricity
- 0.1514
- Inclination
- 13.28°
- Orbital period
- 372.1 days
- Perihelion
- 0.859 AU
- Aphelion
- 1.166 AU
- Longitude of ascending node
- 53.83°
- Argument of periapsis
- 355.93°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 50.2 LD
- 0.1291 AU
- Tisserand (Jupiter)
- 5.988
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 74
- Data arc
- 387 days
- First observed
- 3 April 2025
- Last observed
- 25 April 2026
- Residual RMS
- 0.58 ″
- Solution · Otto Matic
- 26 April 2026
Visual & observation
- Absolute magnitude (H)
- 23.53
Discovery & classification
Close approaches 61 on record
Top-down view of the ecliptic, Earth at the centre, for the 2026-12-07 14:39 UTC close approach of 2025 HV18. Catalogue miss distance 55.6 LD · 2.14 × 10⁷ km. The curve is the geocentric path from 2026-12-04 to 2026-12-10, 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 |
|---|---|---|---|---|
| 2026-12-07 14:39:00 | Earth | 0.1429 AU | 55.6 LD | 8.7 km/s |
| 2027-12-30 01:05:00 | Earth | 0.1923 AU | 74.9 LD | 8.9 km/s |
| 2032-12-24 22:45:00 | Venus | 0.1419 AU | 55.2 LD | 6.2 km/s |
| 2036-01-31 01:19:00 | Venus | 0.1464 AU | 57.0 LD | 6.2 km/s |
| 2071-09-29 08:35:00 | Venus | 0.139 AU | 54.1 LD | 6.2 km/s |
| 2074-06-20 12:45:00 | Earth | 0.1947 AU | 75.8 LD | 7.8 km/s |
| 2075-06-05 05:36:00 | Earth | 0.1633 AU | 63.5 LD | 7.5 km/s |
| 2075-10-15 05:17:00 | Earth | 0.1797 AU | 69.9 LD | 8.5 km/s |
| 2076-05-20 22:28:00 | Earth | 0.1536 AU | 59.8 LD | 7.5 km/s |
| 2076-11-05 13:38:00 | Earth | 0.1399 AU | 54.4 LD | 8.6 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