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Solar
Comet Near-Earth

du Toit

66P/du Toit

Where is it now

Distance from Sun
10.642 AU
True anomaly
184.45°
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
07h 33m 10s
Declination
+39° 50′ 16″
Constellation
Lynx
Distance from Earth
10.97 AU
Elongation from the Sun
68.14° — well clear of the Sun

Favours the northern hemisphere; low or below the horizon from far south.

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
6.023 AU
Eccentricity
0.7866
Inclination
18.67°
Orbital period
14.78 years
Perihelion
1.285 AU
Aphelion
10.76 AU
Longitude of ascending node
22°
Argument of periapsis
257.34°
Epoch · J2000
2456961.5
Orbit class · JFc
Jupiter-family comet (P < 20 y)
Earth MOID · 170.6 LD
0.4383 AU
Tisserand (Jupiter)
2.123

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
547
Data arc
44.64 years
First observed
22 March 1974
Last observed
10 November 2018
Residual RMS
0.71 ″
Solution · Davide Farnocchia
3 June 2019

Visual & observation

Absolute magnitude (H)
15.7
Total magnitude M₁ · K₁ 7
15.7

Discovery & classification

Also known as 66P

Near-Earth Object Named

Close approaches 3 on record

When (UTC) Body Distance Lunar distances Relative speed
2136-06-12 16:14:00 Earth 0.4526 AU 176.1 LD 8.3 km/s
2151-06-13 23:27:00 Earth 0.4581 AU 178.3 LD 8.4 km/s

Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.

Sources