Vaisala
C/1942 EA (Vaisala)
Where is it now
- Distance from Sun
- 6.634 AU
- True anomaly
- 228.03°
- 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
- 01h 16m 27s
- Declination
- -09° 41′ 53″
- Constellation
- Cetus
- Distance from Earth
- 5.7 AU
- Elongation from the Sun
- 155.63° — well clear of the Sun
Visible from both hemispheres.
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
- 19.529 AU
- Eccentricity
- 0.9341
- Inclination
- 38°
- Orbital period
- 86.3 years
- Perihelion
- 1.287 AU
- Aphelion
- 37.77 AU
- Longitude of ascending node
- 172.29°
- Argument of periapsis
- 335.23°
- Epoch · J2000
- 2430441.5
- Orbit class · HTC
- Halley-type comet
- Earth MOID · 130.8 LD
- 0.3361 AU
- Tisserand (Jupiter)
- 1.357
Orbit quality
Orbit poorly determined (uncertainty code 7).
- Observations used
- 39
- Data arc
- 37 days
- First observed
- 11 March 1942
- Last observed
- 17 April 1942
- Residual RMS
- 0.62 ″
- Solution · Otto Matic
- 22 May 2026
Discovery & classification
Also known as 1942 EA
Sources
- orbital elements: JPL SBDB