BATTERS
C/2001 W2 (BATTERS)
Where is it now
- Distance from Sun
- 32.052 AU
- True anomaly
- 174.07°
- 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
- 08h 34m 06s
- Declination
- -20° 23′ 03″
- Constellation
- Pyxis
- Distance from Earth
- 32.67 AU
- Elongation from the Sun
- 51.44° — near the Sun — look low at dusk or dawn
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
- 17.929 AU
- Eccentricity
- 0.9414
- Inclination
- 115.91°
- Orbital period
- 75.91 years
- Perihelion
- 1.051 AU
- Aphelion
- 34.806 AU
- Longitude of ascending node
- 113.36°
- Argument of periapsis
- 142.09°
- Epoch · J2000
- 2452248.5
- Orbit class · HTC
- Halley-type comet
- Earth MOID · 56.7 LD
- 0.1456 AU
- Tisserand (Jupiter)
- -0.257
Orbit quality
Orbit reasonably well determined (uncertainty code 4).
- Observations used
- 350
- Data arc
- 198 days
- First observed
- 21 November 2001
- Last observed
- 7 June 2002
- Residual RMS
- 0.58 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 12.1
- Total magnitude M₁ · K₁ 10.8
- 12.1
Discovery & classification
Also known as 2001 W2
Sources
- orbital elements: JPL SBDB