Boattini
387P/Boattini
Where is it now
- Distance from Sun
- 7.656 AU
- True anomaly
- 194.45°
- As of
- 17 September 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 30m 36s
- Declination
- -22° 16′ 06″
- Constellation
- Ophiuchus
- Distance from Earth
- 7.87 AU
- Elongation from the Sun
- 73.82° — well clear of the Sun
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
- 4.799 AU
- Eccentricity
- 0.736
- Inclination
- 8.9°
- Orbital period
- 10.51 years
- Perihelion
- 1.267 AU
- Aphelion
- 8.331 AU
- Longitude of ascending node
- 259.36°
- Argument of periapsis
- 162.78°
- Epoch · J2000
- 2457120.5
- Orbit class · JFc
- Jupiter-family comet (P < 20 y)
- Earth MOID · 111.1 LD
- 0.2855 AU
- Tisserand (Jupiter)
- 2.369
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 347
- Data arc
- 11.1 years
- First observed
- 22 December 2008
- Last observed
- 29 January 2020
- Residual RMS
- 0.74 ″
- Solution · Otto Matic
- 2 May 2021
Visual & observation
- Absolute magnitude (H)
- 14.2
- Total magnitude M₁ · K₁ 20
- 14.2
Discovery & classification
Also known as 387P
Close approaches 2 on record
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2162-05-08 02:54:00 | Jupiter | 0.4902 AU | 190.8 LD | 10.5 km/s |
| 2163-11-27 11:17:00 | Earth | 0.1739 AU | 67.7 LD | 8.1 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- orbital elements: JPL SBDB