31P/Schwassmann-Wachmann (Record n° 3165)
Perihelion distance : 3.41 AU
Inclination to ecliptic : 5 °
Orbital period : 8.69 years
Eccentricity : 0.19
NASA/JPL elements
IAU/MPC elements
On 2009 Dec 07 05h34 UT by Francois KugelMagnitude (MPC m2) 18.6 Magnitude standard deviation 0.1 r (dist/Sun) 3.622 AU d (dist/Earth) 2.654 AU Right ascension 86.79146 ° Declination +20.25822 ° MPC report COD I10
CON FRANCOIS KUGEL [fkugel@wanadoo.fr]
OBS A.Maury ; F.Kugel ; F. Mallia
MEA F. Kugel
TEL 0.4-m f/8 Ritchey-Chretien + CCD
AC2 fkugel@wanadoo.fr
NET USNO-B1.0
0031P C2009 12 07.23222 05 47 09.95 +20 15 29.6 18.6 N I10
0031P C2009 12 07.23683 05 47 09.77 +20 15 29.4 18.7 N I10
0031P C2009 12 07.24144 05 47 09.53 +20 15 29.4 18.5 N I10
Instrument type Ritchey-Chretien Instrument aperture (0=naked eye) 400 mm Instrument focale length 3200 mm Instrument focale/diameter 8 Sensor CCD Observatory MPC code I10 Reference stars catalog (ast) USNO-B1.0
Observation submission date 2011 May 06 22h00m34s