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C/2019 Y4 (ATLAS)

Orbital period : 5870.00 years

NASA/JPL elements
IAU/MPC elements


On 2020 Mar 15 19h57 UT by Nicolas Biver


(Copyright Nicolas Biver)

Coma Total magnitude (m1)9.5
Aperture radius used for m15.0 '
Nuclear magnitude (m2)13.6
Aperture radius used for m26 "
Coma diameter9 '
Coma condensation degree (DC)5
r (dist/Sun) 1.772 AU
d (dist/Earth) 1.118 AU
Right ascension09 50 49.0 h m s
Declination+65 54 51 ° ' "
Instrumental configurationConfig1
InstrumentDobson T407mm 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 number4240x2832
Sensor temperature6 °C
Binning2x2
MountDobson sur Table equatoriale JMI
MotorizationYes
AutoguideNo
Exposure total time81 s
Exposure details4+19x3+10x2sec
Sky transparency (naked eye max mag)6
Seeing4
Moon phase85 °
Air mass1.2
LocationBoulonville (28)
Reference stars catalogAPASS
Used softwaresIRIS
Resulting picture sampling (scale)2 "/pix
Image processingflat, alignement, retrait gradient, somme
Observation submission date2020 Mar 17 19h21m24s

(Record n° 21743)

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