31P/Schwassmann-Wachmann (Record n° 2040)
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 Feb 23 21h08 UT by Francois KugelMagnitude (MPC m2) 17.8 Magnitude standard deviation 0.1 r (dist/Sun) 3.476 AU d (dist/Earth) 2.490 AU Right ascension 160.97129 ° Declination +12.69381 ° 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 2011.02.24 00:09:45
AC2 fkugel@wanadoo.fr
NET USNO-SA2.0
0031P C2011 02 23.88070 10 43 53.11 +12 41 37.7 17.8 N A77
0031P C2011 02 23.88842 10 43 52.82 +12 41 40.1 17.9 N A77
0031P C2011 02 23.89460 10 43 52.55 +12 41 42.2 17.8 N A77
Instrument type Newton Instrument aperture (0=naked eye) 500 mm Instrument focale length 1500 mm Instrument focale/diameter 3 Sensor CCD Observatory MPC code A77 Reference stars catalog (ast) USNO-SA2.0
Observation submission date 2011 Feb 24 07h01m38s