73P/Schwassmann-Wachmann (Record n° 17898)
Orbital period : 5.44 years
NASA/JPL elements
IAU/MPC elements
On 2017 Jun 30 09h06 UT by Thierry Noel
(Copyright Thierry Noel)Nuclear magnitude (m2) 17.9 m2 standard deviation 0.1 Aperture radius used for m2 6.4 " r (dist/Sun) 1.686 AU d (dist/Earth) 1.872 AU Right ascension 02 23 55.52 h m s Declination +04 21 43.2 ° ' " MPC report COD W96
CON Thierry Noel [thierrynoel38a@free.fr]
OBS A. Maury, J.-B. de Vanssay, T. Noel
MEA T. Noel
TEL 0.4-m f/5.4 Ritchey-Chretien + CCD
COM Aperture radius for m2 : 6.4"
ACK MPCReport file updated 2017.06.30 22:59:04
AC2 thierrynoel38a@free.fr
NET Gaia DR1
0073P C2017 06 30.37921 02 23 55.52 +04 21 43.2 17.8 N W96
0073P C2017 06 30.38705 02 23 56.31 +04 21 46.5 17.9 N W96
0073P C2017 06 30.39488 02 23 56.96 +04 21 49.7 17.9 N W96
Instrument type Ritchey-Chretien Instrument aperture (0=naked eye) 400 mm Instrument focale length 2160 mm Instrument focale/diameter 5.4 Camera QHY9 Sensor CCD Sensor temperature -20 °C Binning 3x3 Mount VMA 200 Autoguide No Exposure details 21x1mn Observatory MPC code W96 Location San Pedro de Atacama, Chile Reference stars catalog Gaia DR1
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.59 "/pix Image processing Prism (-dark, /flat), Astrometrica (add), Iris (grad, levels, crop) Observation submission date 2017 Jun 30 23h11m22s Observation modification date 2017 Jun 30 23h35m10s