Where is it now
- Distance from Sun
- 1.396 AU
- True anomaly
- 354.71°
- Distance from Earth
- 0.695 AU
- As of
- 11 October 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 41m 04s
- Declination
- -15° 13′ 45″
- Constellation
- Capricornus
- Distance from Earth
- 0.7 AU
- Elongation from the Sun
- 109.53° — 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
- 3.522 AU
- Eccentricity
- 0.6043
- Inclination
- 1.55°
- Orbital period
- 6.61 years
- Perihelion
- 1.394 AU
- Aphelion
- 5.651 AU
- Longitude of ascending node
- 277.74°
- Argument of periapsis
- 78.06°
- Epoch · J2000
- 2456460.5
- Orbit class · JFc
- Jupiter-family comet (P < 20 y)
- Earth MOID · 152.1 LD
- 0.3908 AU
- Tisserand (Jupiter)
- 2.788
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 349
- Data arc
- 33.93 years
- First observed
- 30 November 1986
- Last observed
- 5 November 2020
- Residual RMS
- 0.68 ″
- Solution · Otto Matic
- 15 April 2021
Physical properties
- Mean radius
- 3.10 km
Visual & observation
- Absolute magnitude (H)
- 18.4
- Total magnitude M₁ · K₁ 5.5
- 18.4
Discovery & classification
Also known as 184P · 184P/1986 W1 · 184P/2007 A1 · 1986 XIII · 1986p
Close approaches 15 on record
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2040-12-27 13:56:00 | Juptr | 1.2898 AU | 501.9 LD | 8.6 km/s |
| 2076-07-24 16:03:00 | Jupiter | 0.0623 AU | 24.3 LD | 7.3 km/s |
| 2076-07-24 16:03:00 | Juptr | 0.0623 AU | 24.3 LD | 7.3 km/s |
| 2123-12-18 20:18:00 | Juptr | 1.6156 AU | 628.7 LD | 9.1 km/s |
| 2135-05-03 10:35:00 | Juptr | 0.5963 AU | 232.1 LD | 5.6 km/s |
| 2171-07-10 03:54:00 | Juptr | 0.9005 AU | 350.4 LD | 6.9 km/s |
| 2182-09-27 13:15:00 | Juptr | 1.5482 AU | 602.5 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)
- visual properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB