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67P/Churyumov-Gerasimenko

Perihelion distance : 1.21 AU
Inclination to ecliptic : 4 °
Orbital period : 6.43 years
Eccentricity : 0.65

NASA/JPL elements
IAU/MPC elements


On 2022 Feb 09 03h14 UT by Nicolas Biver


(Copyright Nicolas Biver)

Coma Total magnitude (m1)10.7
Aperture radius for m13.0 '
Magnitude (MPC m2)14.0
Aperture radius for m26 "
Coma diameter4.5 '
Coma condensation degree (DC)5
Tail length0.47 °
Tail position angle (PA)281 °
Afrho311 cm
Afrho error12 cm
Afrho URL for more infohttps://lesia.obspm.fr/perso/nicolas-biver/COMETES/afrho-magnitudes.pdf
r (dist/Sun) 1.691 AU
d (dist/Earth) 0.730 AU
Instrumental configurationConfig1
InstrumentDobson 407mm F/D 4.3
Instrument typeNewton
Instrument aperture (0=naked eye)407 mm
Instrument focale length1750 mm
FilterNone
CameraSONY alpha7S
SensorDC
Sensor size36*24 mm2
Sensor pixels number4240*2832
Sensor temperature1 °C
Binning2x2
Mountdobson sur table equatoriale JMI
MotorizationYes
AutoguideNo
Exposure total time173.3 s
Picture exposure details19x3.2s+33x2.5s+15x2s
Sky transparency (naked eye max mag)6
Seeing2
Moon phase80 °
Moon elongation180 °
Air mass1.55
LocationBoulonville
Reference stars catalog (ast)APASS
Used softwaresIRIS
Resulting picture sampling (scale)2 "/pix
Image processingbinning,flat,alignement,somme,retrait gradient - images en jpg
Remarks or commentsmagnitude mode N&B 16bits, Afrho couche R: mR = 10.7, mV = 10.6 Afrho(N&B) = 269+-16 cm Afrho(V) = 295+-21 cm
Observation submission date2022 Feb 11 12h05m59s
Observation modification date2022 Feb 17 14h22m49s

(Record n° 25045)

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