2019 WW is an asteroid in the Apollo orbit class. Its orbit takes it from 0.69 AU to 1.37 AU from the Sun; one orbit takes 381.7 days. Orbit from the JPL solution of 14 July 2024.
Where is it now
- Distance from Sun
- 1.354 AU
- True anomaly
- 167.44°
- Distance from Earth
- 1.204 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
- 19h 52m 56s
- Declination
- -15° 19′ 04″
- Constellation
- Sagittarius
- Distance from Earth
- 1.21 AU
- Elongation from the Sun
- 75.19° — 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
- 1.03 AU
- Eccentricity
- 0.3306
- Inclination
- 5.01°
- Orbital period
- 381.7 days
- Perihelion
- 0.689 AU
- Aphelion
- 1.37 AU
- Longitude of ascending node
- 240.67°
- Argument of periapsis
- 293.91°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 6.6 LD
- 0.017 AU
- Tisserand (Jupiter)
- 5.89
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 89
- Data arc
- 4.65 years
- First observed
- 19 November 2019
- Last observed
- 12 July 2024
- Residual RMS
- 0.31 ″
- Solution · Otto Matic
- 14 July 2024
Visual & observation
- Absolute magnitude (H)
- 24.56
Discovery & classification
Close approaches 180 on record
Top-down view of the ecliptic, Earth at the centre, for the 2041-11-19 10:09 UTC close approach of 2019 WW. Catalogue miss distance 140.2 LD · 5.39 × 10⁷ km. The curve is the geocentric path from 2041-11-16 to 2041-11-22, 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 |
|---|---|---|---|---|
| 2029-07-27 00:43:00 | Venus | 0.0874 AU | 34.0 LD | 6.7 km/s |
| 2039-11-25 16:53:00 | Venus | 0.0977 AU | 38.0 LD | 7.9 km/s |
| 2041-11-19 10:09:00 | Earth | 0.3602 AU | 140.2 LD | 21.1 km/s |
| 2042-12-01 06:35:00 | Earth | 0.0866 AU | 33.7 LD | 12.7 km/s |
| 2043-11-25 00:12:00 | Earth | 0.1867 AU | 72.7 LD | 6.3 km/s |
| 2044-10-16 12:59:00 | Earth | 0.3328 AU | 129.5 LD | 8.4 km/s |
| 2045-02-27 22:27:00 | Earth | 0.3044 AU | 118.5 LD | 11 km/s |
| 2045-09-19 19:29:00 | Earth | 0.376 AU | 146.3 LD | 8.9 km/s |
| 2046-04-09 09:44:00 | Earth | 0.3009 AU | 117.1 LD | 11 km/s |
| 2046-08-23 14:54:00 | Earth | 0.3432 AU | 133.6 LD | 8.1 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