C/2009 R1 (McNaught) (Record n° 439)
NASA/JPL elements
IAU/MPC elements
On 2010 May 21 02h01 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 12.6 Aperture radius used for m2 6 " r (dist/Sun) 1.083 AU d (dist/Earth) 1.473 AU Right ascension 00 26 20.75 h m s Declination +22 58 45.5 ° ' " Instrument type Newton Instrument aperture (0=naked eye) 254 mm Instrument focale length 1200 mm Instrument focale/diameter 4.72 Camera ST7-XMEd Sensor CCD Sensor size 6.9X4.6 mm2 Sensor pixels number 765X510 Sensor temperature -25 °C Binning 1x1 Mount PERL-VIXEN Autoguide Yes Exposure total time 1560 s Exposure details 13X120s Seeing 3 Moon elongation 134 ° Air mass 3.85 Observatory MPC code C10 Location 77 Reference stars catalog USNOB1.0 Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.54 "/pix Image processing PRISMV6 APE Remarks or comments Obstruction optique : 25% Observation submission date 2010 May 27 10h17m39s