71P/Clark (Record n° 2725)
Orbital period : 5.56 years
NASA/JPL elements
IAU/MPC elements
On 2011 May 04 20h45 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 18.1 m2 standard deviation 0.1 Aperture radius used for m2 8 " r (dist/Sun) 2.504 AU d (dist/Earth) 2.044 AU Right ascension 10 18 40.32 h m s Declination +22 01 25.0 ° ' " 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 2011.05.04
AC2 jean-francois.soulier2@wanadoo.fr
NET USNO-B1.0
0071P KC2011 05 04.86481 10 18 40.32 +22 01 25.0 18.0 N C10
0071P KC2011 05 04.87807 10 18 40.47 +22 01 20.0 18.0 N C10
0071P KC2011 05 04.89542 10 18 40.65 +22 01 13.2 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 -15 °C Binning 1x1 Mount PERL-VIXEN Autoguide Yes Exposure total time 2400 s Exposure details 20 x 120s Seeing 3 Moon elongation 87 ° Air mass 1.17 Observatory MPC code C10 Location 77 Reference stars catalog USNO-B1.0
Used softwares ASTROMETRICA Resulting picture sampling (scale) 2.04 "/pix Image processing PRISMV8 APE DDP Observation submission date 2011 May 05 06h12m22s Observation modification date 2011 May 05 07h07m18s