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12P/Pons-Brooks

Orbital period : 71.00 years

NASA/JPL elements
IAU/MPC elements


On 2024 Jan 20 18h20 UT by Nicolas Biver


(Copyright Nicolas Biver)

Coma Total magnitude (m1)8.7
Aperture radius used for m12.5 '
Nuclear magnitude (m2)12.5
Aperture radius used for m26 "
Coma diameter4.8 '
Coma condensation degree (DC)5
r (dist/Sun) 1.752 AU
d (dist/Earth) 2.044 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 temperature-1 °C
Binning2x2
MountDobson
MotorizationNo
AutoguideNo
Exposure total time51.9 s
Exposure details86x1/3+93x1/4s
Sky transparency (naked eye max mag)4
Seeing3
Moon phase65 °
Moon elongation100 °
Air mass2.0
LocationVersailles
Reference stars catalogAPASS
Used softwaresIRIS
Resulting picture sampling (scale)2 "/pix
Image processingbinning, flat, alignement, alignement comète, somme, retrait gradient
Observation submission date2024 Jan 21 01h56m52s

(Record n° 28088)

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