2019 AC3 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.92 AU to 1.14 AU from the Sun; one orbit takes 381.7 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.062 AU
- True anomaly
- 112.47°
- Distance from Earth
- 1.532 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
- 17h 41m 06s
- Declination
- -22° 08′ 31″
- Constellation
- Ophiuchus
- Distance from Earth
- 1.53 AU
- Elongation from the Sun
- 43.52° — 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
- 1.03 AU
- Eccentricity
- 0.1101
- Inclination
- 4.41°
- Orbital period
- 381.7 days
- Perihelion
- 0.916 AU
- Aphelion
- 1.143 AU
- Longitude of ascending node
- 282.01°
- Argument of periapsis
- 270.49°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 0.1 LD
- 0.0003 AU
- Tisserand (Jupiter)
- 5.935
Orbit quality
Orbit very well determined (uncertainty code 2).
- Observations used
- 65
- Data arc
- 569 days
- First observed
- 3 January 2019
- Last observed
- 25 July 2020
- Residual RMS
- 0.55 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 27.3
Discovery & classification
Close approaches 67 on record
Top-down view of the ecliptic, Earth at the centre, for the 2041-01-02 15:41 UTC close approach of 2019 AC3. Catalogue miss distance 135.9 LD · 5.22 × 10⁷ km. The curve is the geocentric path from 2040-12-30 to 2041-01-05, 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 |
|---|---|---|---|---|
| 2041-01-02 15:41:00 | Earth | 0.3491 AU | 135.9 LD | 14 km/s |
| 2042-01-13 15:07:00 | Earth | 0.068 AU | 26.5 LD | 5.7 km/s |
| 2042-11-12 12:37:00 | Earth | 0.1485 AU | 57.8 LD | 3.5 km/s |
| 2043-05-09 22:15:00 | Earth | 0.103 AU | 40.1 LD | 3 km/s |
| 2043-08-10 03:42:00 | Earth | 0.1207 AU | 47.0 LD | 2.6 km/s |
| 2044-07-12 08:37:00 | Earth | 0.1379 AU | 53.7 LD | 7.6 km/s |
| 2045-07-24 19:50:00 | Earth | 0.4015 AU | 156.2 LD | 15.2 km/s |
| 2064-12-31 23:33:00 | Earth | 0.3808 AU | 148.2 LD | 15 km/s |
| 2066-01-11 22:28:00 | Earth | 0.1094 AU | 42.6 LD | 6.9 km/s |
| 2066-11-27 19:42:00 | Earth | 0.131 AU | 51.0 LD | 3.3 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