31P/Schwassmann-Wachmann (Record n° 18083)
Orbital period : 8.72 years
NASA/JPL elements
IAU/MPC elements
On 2017 Aug 19 08h15 UT by Jean-Gabriel Bosch
(Copyright Jean-Gabriel Bosch)Nuclear magnitude (m2) 20.6 m2 standard deviation 0.3 Aperture radius used for m2 6.4 " r (dist/Sun) 4.223 AU d (dist/Earth) 3.940 AU Right ascension 03 02 36.08 h m s Declination +12 12 19.4 ° ' " 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 2017.08.19 06:57:57
AC2 JGBosch@free.fr
NET UCAC-4
0031P KC2017 08 19.34381 03 02 36.08 +12 12 19.4 20.3 N W96
0031P KC2017 08 19.35556 03 02 36.22 +12 12 19.5 20.8 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 Binning 3x3 Mount VMA 200 Autoguide No Exposure details 86x60s 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 10h53m20s Observation modification date 2017 Aug 20 10h54m13s