1991 VG is an asteroid in the Apollo orbit class. Its orbit takes it from 0.98 AU to 1.09 AU from the Sun; one orbit takes 383.1 days. Orbit from the JPL solution of 22 November 2023.
Where is it now
- Distance from Sun
- 1.081 AU
- True anomaly
- 154.79°
- Distance from Earth
- 1.994 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
- 15h 45m 46s
- Declination
- -19° 53′ 56″
- Constellation
- Libra
- Distance from Earth
- 1.99 AU
- Elongation from the Sun
- 16.48° — too close to the Sun to observe
Favours the southern hemisphere; low or below the horizon from far north.
From your location
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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
- 1.032 AU
- Eccentricity
- 0.0525
- Inclination
- 1.43°
- Orbital period
- 383.1 days
- Perihelion
- 0.978 AU
- Aphelion
- 1.087 AU
- Longitude of ascending node
- 71.27°
- Argument of periapsis
- 26.95°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 0.9 LD
- 0.0023 AU
- Tisserand (Jupiter)
- 5.93
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 70
- Data arc
- 25.57 years
- First observed
- 6 November 1991
- Last observed
- 1 June 2017
- Residual RMS
- 0.49 ″
- Solution · Otto Matic
- 22 November 2023
Visual & observation
- Absolute magnitude (H)
- 28.3
Discovery & classification
Close approaches 45 on record
Top-down view of the ecliptic, Earth at the centre, for the 2037-10-16 21:15 UTC close approach of 1991 VG. Catalogue miss distance 146.1 LD · 5.62 × 10⁷ km. The curve is the geocentric path from 2037-10-13 to 2037-10-19, 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. 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 |
|---|---|---|---|---|
| 2037-10-16 21:15:00 | Earth | 0.3754 AU | 146.1 LD | 12 km/s |
| 2038-11-07 13:23:00 | Earth | 0.0702 AU | 27.3 LD | 3 km/s |
| 2039-05-28 08:32:00 | Earth | 0.0599 AU | 23.3 LD | 1.5 km/s |
| 2040-02-26 08:58:00 | Earth | 0.1716 AU | 66.8 LD | 5.9 km/s |
| 2041-03-15 03:18:00 | Earth | 0.4505 AU | 175.3 LD | 14.3 km/s |
| 2060-10-08 08:07:00 | Earth | 0.4504 AU | 175.3 LD | 14.3 km/s |
| 2061-10-26 19:25:00 | Earth | 0.1718 AU | 66.9 LD | 6 km/s |
| 2062-07-27 00:05:00 | Earth | 0.0632 AU | 24.6 LD | 1.4 km/s |
| 2063-02-14 20:40:00 | Earth | 0.0715 AU | 27.8 LD | 2.8 km/s |
| 2064-03-06 21:14:00 | Earth | 0.3752 AU | 146.0 LD | 12.1 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