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C/2017 K2 (PANSTARRS)


NASA/JPL elements
IAU/MPC elements


On 2022 Aug 27 20h41 UT by Nicolas Biver


(Copyright Nicolas Biver)

Coma Total magnitude (m1)9.3
Aperture radius used for m12.2 '
Nuclear magnitude (m2)12.5
Aperture radius used for m26 "
Coma diameter4 '
Coma condensation degree (DC)4
Tail length0.2 °
Tail position angle (PA)28 °
Afrho5800 cm
Afrho error140 cm
r (dist/Sun) 2.301 AU
d (dist/Earth) 2.089 AU
Right ascension16 00 00 h m s
Declination-21 00 00 ° ' "
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 temperature18 °C
Binning2x2
Mountdobson sur table equatoriale JMI
MotorizationYes
AutoguideNo
Exposure total time141 s
Exposure details24X1.6+17X2.5+30X2s
Sky transparency (naked eye max mag)5.5
Seeing2
Moon phase170 °
Moon elongation180 °
Air mass7
LocationBoulonville
Reference stars catalogAPASS
Used softwaresIRIS
Resulting picture sampling (scale)2 "/pix
Image processingbinning, flat, alignement, somme, retrait gradient
Remarks or commentsAfrho(couche R image RAW) Afrho(R+V+B RAW ou JPG) = 5800+-200 cm
Observation submission date2022 Aug 30 17h14m37s

(Record n° 25916)

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