71P/Clark (Record n° 2402)
Orbital period : 5.56 years
NASA/JPL elements
IAU/MPC elements
On 2011 Apr 06 21h39 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 18 m2 standard deviation 0.1 Aperture radius used for m2 8 " r (dist/Sun) 2.658 AU d (dist/Earth) 1.883 AU Right ascension 10 23 51.59 h m s Declination +23 52 31.0 ° ' " MPC report COD C10
CON JEAN-FRANCOIS SOULIER [jean-francois.soulier2@wanadoo.fr]
OBS J.F. Soulier
MEA J.F. Soulier
TEL 0.255-m f/3.6 Newtonian reflector + CCD
ACK MPCReport file updated 2011.04.06
AC2 jean-francois.soulier2@wanadoo.fr
NET USNO-B1.0
0071P C2011 04 06.90215 10 23 51.59 +23 52 31.0 18.0 N C10
0071P C2011 04 06.91865 10 23 50.97 +23 52 29.1 17.9 N C10
0071P C2011 04 06.93391 10 23 50.49 +23 52 28.2 18.2 N C10
Instrument type Newton Instrument aperture (0=naked eye) 254 mm Instrument focale length 900 mm Instrument focale/diameter 3.6 Camera ST7-XMEd Sensor CCD Sensor size 6.9 x 4.6 mm2 Sensor pixels number 765 x 510 Sensor temperature -20 °C Binning 1x1 Mount PERL-VIXEN Autoguide Yes Exposure total time 1800 s Exposure details 15 X 120s Seeing 3 Moon elongation 95 ° Air mass 1.10 Observatory MPC code C10 Location 77 Reference stars catalog USNO-B1.0
Used softwares ASTROMETRICA Resulting picture sampling (scale) 2.06 "/pix Image processing PRISMV8 APE DDP Observation submission date 2011 Apr 07 06h47m31s Observation modification date 2011 Apr 07 15h49m12s