C/2017 W2 (Leonard) (Record n° 18650)
Orbital period : 50.40 years
NASA/JPL elements
IAU/MPC elements
On 2017 Nov 30 03h53 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 19.8 m2 standard deviation 0.1 Aperture radius used for m2 6.6 " r (dist/Sun) 3.962 AU d (dist/Earth) 3.675 AU Right ascension 10 10 15.24 h m s Declination +18 24 33.4 ° ' " MPC report COD A77
CON JEAN-FRANCOIS SOULIER [jean-francois.soulier2@wanadoo.fr]
OBS J.-F. Soulier
MEA J.-F. Soulier
TEL 0.20-m f/4 Newtonian reflector + CCD
ACK MPCReport file updated 2017.11.30
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-4
CK17W020 KC2017 11 30.16173 10 10 15.24 +18 24 33.4 19.8 R A77
CK17W020 KC2017 11 30.17621 10 10 14.76 +18 24 28.8 19.7 R A77
CK17W020 KC2017 11 30.19069 10 10 14.40 +18 24 22.3 19.9 R A77
Instrument type Newton Instrument aperture (0=naked eye) 200 mm Instrument focale length 800 mm Instrument focale/diameter 4 Filter(s) None Camera ATIK 314L+ Sensor CCD Sensor temperature -10 °C Binning 1x1 Mount Astronomy Equipement AEb Autoguide No Exposure details 60 x 60s Observatory MPC code A77 Location Dauban (04) Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.65 "/pix Observation submission date 2017 Dec 19 19h31m21s Observation modification date 2018 Apr 02 06h07m56s