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15P/Finlay

Orbital period : 6.58 years

NASA/JPL elements
IAU/MPC elements


On 2021 Sep 17 03h15 UT by Nicolas Biver


(Copyright Nicolas Biver)

Coma Total magnitude (m1)14.0
Aperture radius used for m11.3 '
Nuclear magnitude (m2)17.0
Aperture radius used for m26 "
Coma diameter1.5 '
Coma condensation degree (DC)3
Tail length0 °
Tail position angle (PA)0 °
r (dist/Sun) 1.351 AU
d (dist/Earth) 1.477 AU
Right ascension07 37 10.2 h m s
Declination+26 49 16 ° ' "
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
CameraSONY alpha7S
SensorDC
Sensor size36*24 mm2
Sensor pixels number4240*2832
Sensor temperature12 °C
Binning2x2
Mountdobson sur table equatoriale JMI
MotorizationYes
AutoguideNo
Exposure total time81.5 s
Exposure details15*2.5s+22*2.0s
Sky transparency (naked eye max mag)6
Seeing3
Moon phase49 °
Moon elongation166 °
Air mass1.77
LocationBoulonville
Reference stars catalogAPASS
Used softwaresIRIS
Resulting picture sampling (scale)2 "/pix
Image processingbinning, flat, alignement stellaire, somme, retrait gradient
Remarks or commentscouche verte: m1=13.4, Dia.=2'
Observation submission date2021 Sep 21 22h56m22s
Observation modification date2021 Sep 21 23h03m14s

(Record n° 23991)

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