31P/Schwassmann-Wachmann (Record n° 241)
Orbital period : 8.72 years
NASA/JPL elements
IAU/MPC elements
On 2010 Mar 04 21h14 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 18.5 Aperture radius used for m2 6 " r (dist/Sun) 3.527 AU d (dist/Earth) 3.250 AU Right ascension 05 22 11.00 h m s Declination +21 43 50.9 ° ' " Instrument type Newton Instrument aperture (0=naked eye) 254 mm Instrument focale length 1200 mm Instrument focale/diameter 4.72 Sensor CCD Seeing 4 Moon elongation 139 ° Air mass 1.37 Observatory MPC code C10 Location 77 Reference stars catalog USNOB1.0 Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.54 "/pix Observation submission date 2010 May 09 15h07m01s Observation modification date 2010 May 10 17h26m51s