73P/Schwassmann-Wachmann (Record n° 17513)
Orbital period : 5.44 years
NASA/JPL elements
IAU/MPC elements
On 2017 Apr 14 09h41 UT by Thierry Noel
(Copyright Thierry Noel)Nuclear magnitude (m2) 14.7 m2 standard deviation 0.1 Aperture radius used for m2 6.7 " r (dist/Sun) 1.052 AU d (dist/Earth) 1.575 AU Right ascension 23 09 17.18 h m s Declination -12 07 22.5 ° ' " 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(s) 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 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