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67P/Churyumov-Gerasimenko

Orbital period : 6.42 years

NASA/JPL elements
IAU/MPC elements


On 2022 Feb 09 02h16 UT by Nicolas Biver


(Copyright Nicolas Biver)

Coma Total magnitude (m1)10.7
Aperture radius used for m12.3 '
Nuclear magnitude (m2)14.0
Aperture radius used for m26 "
Coma diameter4.2 '
Coma condensation degree (DC)5
Tail length0.43 °
Tail position angle (PA)281 °
Afrho311 cm
Afrho error16 cm
Afrho URL for more infoconversion des magnitudes R
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
Instrument focale/diameter4.29
Filter(s)None
CameraSONY alpha7S
SensorDC
Sensor size36*24 mm2
Sensor pixels number4240*2832
Sensor temperature1 °C
Binning2x2
Mountdobson sur table equatoriale JMI
MotorizationYes
AutoguideNo
Exposure total time97.5 s
Exposure details39x2.5s
Sky transparency (naked eye max mag)6
Seeing2
Moon phase80 °
Moon elongation180 °
Air mass1.3
LocationBoulonville
Reference stars catalogAPASS
Used softwaresIRIS
Resulting picture sampling (scale)2 "/pix
Image processingbinning,flat,alignement,somme,retrait gradient - images en RAW
Remarks or commentsmagnitude mode N&B 16bits, Afrho couche R: mR = 10.8, Afrho(N&B) = 276+-11 cm
Observation submission date2022 Feb 11 11h57m43s

(Record n° 25044)

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