Great January comet is a comet in the Comet orbit class. Its orbit takes it from 0.13 AU to 1,172.77 AU from the Sun; one orbit takes 14,202.2 years. Orbit from the JPL solution of 15 April 2024.
Where is it now
- Distance from Sun
- 131.062 AU
- True anomaly
- 176.61°
- Distance from Earth
- 131.031 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
- 20h 01m 27s
- Declination
- +06° 31′ 33″
- Constellation
- Aquila
- Distance from Earth
- 131.04 AU
- Elongation from the Sun
- 91.38° — well clear of the Sun
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
- 586.45 AU
- Eccentricity
- 0.9998
- Inclination
- 138.78°
- Orbital period
- 14,202.2 years
- Perihelion
- 0.129 AU
- Aphelion
- 1,172.77 AU
- Longitude of ascending node
- 90.03°
- Argument of periapsis
- 320.89°
- Epoch · J2000
- 2418705.5
- Orbit class · COM
- Comet
- Earth MOID · 11.5 LD
- 0.0295 AU
- Tisserand (Jupiter)
- -0.326
Orbit quality
- Observations used
- 25
- Data arc
- 82 days
- First observed
- 19 January 1910
- Last observed
- 11 April 1910
- Residual RMS
- 1.03 ″
- Solution · Otto Matic
- 15 April 2024
Discovery & classification
Also known as 1910 A1
Sources
- orbital elements: JPL SBDB