Where is it now
- Distance from Sun
- 3.232 AU
- True anomaly
- 263.95°
- Distance from Earth
- 4.028 AU
- As of
- 22 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
- 16h 00m 12s
- Declination
- -06° 33′ 50″
- Constellation
- Libra
- Distance from Earth
- 4.03 AU
- Elongation from the Sun
- 31.99° — near the Sun — look low at dusk or dawn
Visible from both hemispheres.
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
- 5.367 AU
- Eccentricity
- 0.6631
- Inclination
- 18.76°
- Orbital period
- 12.43 years
- Perihelion
- 1.808 AU
- Aphelion
- 8.925 AU
- Longitude of ascending node
- 182.34°
- Argument of periapsis
- 163.06°
- Epoch · J2000
- 2452982.5
- Orbit class · JFc
- Jupiter-family comet (P < 20 y)
- Earth MOID · 315.2 LD
- 0.8099 AU
- Tisserand (Jupiter)
- 2.409
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 952
- Data arc
- 38.33 years
- First observed
- 13 September 1977
- Last observed
- 13 January 2016
- Residual RMS
- 0.68 ″
- Solution · Shantanu Naidu
- 22 June 2026
Physical properties
- Mean radius
- 1.19 km
Visual & observation
- Absolute magnitude (H)
- 11.6
- Total magnitude M₁ · K₁ 15
- 11.6
Discovery & classification
- Discovered by
- Sanguin, J. G.
- Discovery date
- 15 October 1977
- Discovery site
- El Leoncito, Chile
Also known as 92P · 1977 XII · 1977p · 1989z · 1990 IV · 92P/1977 T2 · 92P/1989 J1
Close approaches 9 on record
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2097-11-23 20:20:00 | Satrn | 1.8238 AU | 709.8 LD | 6.7 km/s |
| 2100-05-19 12:24:00 | Juptr | 1.6071 AU | 625.5 LD | 12.5 km/s |
| 2112-07-17 20:12:00 | Juptr | 0.8462 AU | 329.3 LD | 9.5 km/s |
| 2124-07-04 01:15:00 | Juptr | 1.2488 AU | 486.0 LD | 7.4 km/s |
| 2186-02-23 18:38:00 | Satrn | 1.3976 AU | 543.9 LD | 6.2 km/s |
| 2192-03-30 01:52:00 | Juptr | 1.5166 AU | 590.2 LD | 8.8 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)
- visual properties: JPL SBDB (lookup)
- visual properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB