67P/Churyumov-Gerasimenko (Record n° 24276)
Orbital period : 6.42 years
NASA/JPL elements
IAU/MPC elements
On 2021 Nov 01 00h31 UT by Nicolas Biver
(Copyright Nicolas Biver)Coma Total magnitude (m1) 9.5 Aperture radius used for m1 2.5 ' Coma diameter 5 ' Coma condensation degree
(DC) 5 Tail length 0.25 ° Tail position angle
(PA) 280 ° r (dist/Sun) 1.211 AU d (dist/Earth) 0.422 AU Right ascension 07 17 19.7 h m s Declination +26 17 34 ° ' " Instrumental configuration Config1 Instrument Dobson 407mm F/D 4.3 Instrument type Newton Instrument aperture (0=naked eye) 407 mm Instrument focale length 1750 mm Instrument focale/diameter 4.29 Filter(s) None Camera SONY alpha7S Sensor DC Sensor size 36*24 mm2 Sensor pixels number 4240*2832 Sensor temperature 10 °C Binning 4x4 Mount dobson sur table equatoriale JMI Motorization Yes Autoguide No Exposure total time 27.4 s Exposure details 18*1.3s+2*2.0s Sky transparency (naked eye max mag) 6 Seeing 1 Moon phase 155 ° Moon elongation 90 ° Air mass 1.7 Location Boulonville Reference stars catalog APASS Used softwares IRIS Resulting picture sampling (scale) 4 "/pix Image processing binning, flat, alignement, somme, retrait gradient Remarks or comments vent tempêtueux, suivi pourri, vibration trop fortes (PSF ~ 14") Observation submission date 2021 Nov 01 20h13m35s Observation modification date 2021 Nov 01 20h19m17s