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Comet 31P/Schwassmann-Wachmann 2


Named after Arnold Schwassmann and Arno Arthur Wachmann who discovered the comet on 17 January 1929 at the Hamburg Observatory in Bergedorf, Germany.

This file is not available for download, but provided by the Alcyone Ephemeris Small Body Data File DVD.

Alternate designation1929 I; 1935 III; 1942 I; 1948 VII; 1955 I; 1961 VII; 1968 II; 1974 XIII; 1981 VI; 1987 XIX; 1994 II
ClassificationJupiter-family Comet

Osculating Orbital Elements
Epoch2452800,5
Semi major axis4,2287 AU
Period [Julian yrs]8,696 Julian years
Inclination4,550 °
Eccentricity0,1939
Lon. of ascending node114,196 °
Argument of perihelion18,342 °
Passage of perihelion2002-Jan-18.033426
Aphelion distance5,0485 AU
Mean anomaly57,574 °

Physical Data
Radius3,10 km
Total magnitude (M1)2,5
Total magnitude slope (k1)24

Discovery Circumstances
DiscovererArnold Schwassmann and Arno Arthur Wachmann
Discovered1929-01-17

Data File
Data File Name31P_Schwassmann_Wachmann_2.aed
Data File Date2006-12-22
Data File Size2714 kB
Covered Period1800,00 - 2100,00