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C/2019 Y1 (ATLAS)

Orbital period : 792.80 years

NASA/JPL elements
IAU/MPC elements


On 2020 Apr 23 20h47 UT by Nicolas Biver


(Copyright Nicolas Biver)

Coma Total magnitude (m1)8.6
Aperture radius used for m12.3 '
Nuclear magnitude (m2)12.4
Aperture radius used for m26 "
Coma diameter4.5 '
Coma condensation degree (DC)5
Tail length0.07 °
Tail position angle (PA)10 °
r (dist/Sun) 1.093 AU
d (dist/Earth) 1.132 AU
Right ascension01 40 05.0 h m s
Declination+74 39 38 ° ' "
Instrumental configurationConfig2
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 alpha 7S
SensorDC
Sensor size36x24 mm2
Sensor pixels number4240x2438
Sensor temperature20 °C
Binning2x2
MountDobson seule
MotorizationNo
AutoguideNo
Exposure total time20.5 s
Exposure details17*1/2+15*0.8s
Sky transparency (naked eye max mag)4.5
Air mass2
LocationVersailles
Reference stars catalogAPASS
Used softwaresIRIS
Resulting picture sampling (scale)2 "/pix
Image processingDivision flat, alignement, somme, retrait gradient résiduel +-bon à cause des lumières parasites
Observation submission date2020 Apr 29 21h29m08s

(Record n° 21948)

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