31P/Schwassmann-Wachmann (Record n° 18084)
Orbital period : 8.72 years
NASA/JPL elements
IAU/MPC elements
On 2017 Aug 17 06h42 UT by Jean-Gabriel Bosch
(Copyright Jean-Gabriel Bosch)Nuclear magnitude (m2) 20.6 m2 standard deviation 0.2 Aperture radius used for m2 6.4 " r (dist/Sun) 4.226 AU d (dist/Earth) 3.973 AU Right ascension 03 01 54.02 h m s Declination +12 11 27.8 ° ' " MPC report COD W96
CON Jean-Gabriel Bosch [JGBosch@free.fr]
OBS A. Maury, J.-B. de Vanssay, J.-G. Bosch
MEA J.-G.Bosch
TEL 0.4-m f/5.4 Ritchey-Chretien + QHY9CCD
ACK MPCReport file updated 2017.08.17 07:29:35
AC2 JGBosch@free.fr
NET UCAC-4
0031P KC2017 08 17.27897 03 01 54.02 +12 11 27.8 20.8 N W96
0031P KC2017 08 17.31027 03 01 54.66 +12 11 30.1 20.4 N W96
Instrument type Ritchey-Chretien Instrument aperture (0=naked eye) 400 mm Instrument focale length 2160 mm Instrument focale/diameter 5.4 Filter(s) None Camera QHY Sensor CCD Sensor temperature -30 °C Binning 3x3 Mount VMA 200 Autoguide No Exposure details 89x60s Air mass 1.5 Observatory MPC code W96 Location San Pedro Atacama Chili Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.59 "/pix Observation submission date 2017 Aug 20 11h00m47s Observation modification date 2017 Aug 20 11h01m58s