Great comet is a comet in the Comet orbit class. Its orbit takes it from 0.24 AU to 7,086.55 AU from the Sun; one orbit takes 210,929.9 years. Orbit from the JPL solution of 9 September 2025.
Where is it now
- Distance from Sun
- 140.107 AU
- True anomaly
- 175.26°
- Distance from Earth
- 139.724 AU
- As of
- 25 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
- 06h 44m 33s
- Declination
- +36° 49′ 05″
- Constellation
- Auriga
- Distance from Earth
- 139.72 AU
- Elongation from the Sun
- 112.95° — well clear of the Sun
Favours the northern hemisphere; low or below the horizon from far south.
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.
Your location stays in your browser and is sent only for this calculation. Using a what3words address is optional; if you do, the three words go to what3words to be converted and we don't record them. Set a location first, then you can save an email alert for this object. See our privacy policy.
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
- 3,543.398 AU
- Eccentricity
- 0.9999
- Inclination
- 131.08°
- Orbital period
- 210,929.9 years
- Perihelion
- 0.245 AU
- Aphelion
- 7,086.551 AU
- Longitude of ascending node
- 111.04°
- Argument of periapsis
- 203.05°
- Epoch · J2000
- 2415522.5
- Orbit class · COM
- Comet
- Earth MOID · 176.0 LD
- 0.4523 AU
- Tisserand (Jupiter)
- -0.402
Orbit quality
- Observations used
- 54
- Data arc
- 42 days
- First observed
- 3 May 1901
- Last observed
- 14 June 1901
- Residual RMS
- 0.79 ″
- Solution · Otto Matic
- 9 September 2025
Discovery & classification
Also known as 1901 G1
Sources
- orbital elements: JPL SBDB