73P/Schwassmann-Wachmann (Record n° 17513)
Perihelion distance : 0.9 AU
Inclination to ecliptic : 6 °
Orbital period : 5.33 years
Eccentricity : 0.71
NASA/JPL elements
IAU/MPC elements
On 2017 Apr 14 09h41 UT by Thierry Noel
(Copyright Thierry Noel)Magnitude (MPC m2) 14.7 Magnitude standard deviation 0.1 Aperture radius for m2 6.7 " r (dist/Sun) 1.052 AU d (dist/Earth) 1.575 AU Right ascension 347.32158 ° Declination -12.12292 ° MPC report COD W97
CON Thierry Noel [thierrynoel38a@free.fr]
OBS A. Maury, B. Sandness, T. Noel
MEA T. Noel
TEL 0.38-m f/4.6 Newton + CCD
COM Aperture radius for m1 : 25.2"
COM Aperture radius for m2 : 6.7"
ACK MPCReport file updated 2017.04.14 13:53:14
AC2 thierrynoel38a@free.fr
NET Gaia DR1
0073P C2017 04 14.40369 23 09 17.18 -12 07 22.5 14.6 N W97
0073P C2017 04 14.40848 23 09 18.23 -12 07 17.3 14.7 N W97
0073P C2017 04 14.41326 23 09 19.32 -12 07 13.4 14.7 N W97
Instrument type Newton Instrument aperture (0=naked eye) 380 mm Instrument focale length 1748 mm Instrument focale/diameter 4.6 Filter R (RGB) Camera QSI 532ws-M1 Sensor CCD Sensor temperature -20 °C Binning 1x1 Mount Nova Exposure details 10x1mn Observatory MPC code W97 Location San Pedro de Atacama, Chile Reference stars catalog (ast) Gaia DR1
Used softwares ASTROMETRICA Resulting picture sampling (scale) 0.84 "/pix Image processing Prism (-dark, /flat), Astrometrica (add), Iris (levels, crop) Observation submission date 2017 Apr 14 13h56m51s Observation modification date 2017 Apr 16 23h01m19s