67P/Churyumov-Gerasimenko (Record n° 23838)
Perihelion distance : 1.21 AU
Inclination to ecliptic : 4 °
Orbital period : 6.43 years
Eccentricity : 0.65
NASA/JPL elements
IAU/MPC elements
On 2021 Aug 11 01h45 UT by Nicolas Biver
(Copyright Nicolas Biver)Coma Total magnitude (m1) 13.4 Aperture radius for m1 0.58 ' Magnitude (MPC m2) 14.7 Aperture radius for m2 5 " Coma diameter 1.1 ' Coma condensation degree
(DC) 6 Tail length 0.10 ° Tail position angle
(PA) 248 ° r (dist/Sun) 1.574 AU d (dist/Earth) 0.941 AU Right ascension 30.48292 ° Declination +7.66225 ° Instrumental configuration Config1 Instrument T 1000 mm F/D=3.0 Instrument type Newton Instrument aperture (0=naked eye) 1000 mm Instrument focale length 3450 mm Filter None Camera Sony alpha7s Sensor DC Sensor size 36x24 mm2 Sensor pixels number 4240x2832 Sensor temperature 10 °C Binning 2x2 Mount Telescope de D.Vernet suivi altaz Motorization Yes Autoguide No Exposure total time 126 s Picture exposure details 8x5s+2x10s+11x6s Sky transparency (naked eye max mag) 6 Seeing 3 Moon phase 160 ° Moon elongation 110 ° Air mass 2.0 Location Valdrome - Astrociel Reference stars catalog (ast) APASS Used softwares IRIS Resulting picture sampling (scale) 2 "/pix Image processing binning,alignement stellaire, alignement comète,somme,retrait gradient Remarks or comments focale donnée derrière un paracorr x1.15 Observation submission date 2021 Aug 19 19h38m44s Observation modification date 2021 Aug 19 19h41m27s