31P/Schwassmann-Wachmann (Record n° 2720)
Perihelion distance : 3.41 AU
Inclination to ecliptic : 5 °
Orbital period : 8.69 years
Eccentricity : 0.19
NASA/JPL elements
IAU/MPC elements
On 2011 May 03 21h18 UT by Francois KugelMagnitude (MPC m2) 18.7 Magnitude standard deviation 0.2 Aperture radius for m2 10 " r (dist/Sun) 3.533 AU d (dist/Earth) 3.056 AU Right ascension 155.92792 ° Declination +14.56911 ° MPC report COD A77
CON FRANCOIS KUGEL [fkugel@wanadoo.fr]
OBS C. Rinner, F. Kugel
MEA F. Kugel
TEL 0.5-m f/3 reflector + CCD
ACK MPCReport file updated 2011.05.04 01:16:42
AC2 fkugel@wanadoo.fr
NET USNO-SA2.0
0031P C2011 05 03.88730 10 23 42.70 +14 34 08.8 18.8 N A77
0031P C2011 05 03.89966 10 23 42.81 +14 34 08.1 18.5 N A77
Instrument type Newton Instrument aperture (0=naked eye) 500 mm Instrument focale length 1500 mm Instrument focale/diameter 3 Sensor CCD Binning 2x2 Observatory MPC code A77 Reference stars catalog (ast) USNO-SA2.0
Observation submission date 2011 May 04 01h19m11s