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12P/Pons-Brooks

Orbital period : 71.00 years

NASA/JPL elements
IAU/MPC elements


On 2024 Mar 24 19h32 UT by Nicolas Biver


(Copyright Nicolas Biver)

Coma Total magnitude (m1)5.2
Aperture radius used for m14 '
Nuclear magnitude (m2)8.6
Aperture radius used for m26 "
Coma diameter7.2 '
Coma condensation degree (DC)7
Tail length0.45 °
Tail position angle (PA)32 °
Afrho20900 cm
Afrho error200 cm
r (dist/Sun) 0.941 AU
d (dist/Earth) 1.618 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 temperature8 °C
Binning2x2
MountDobson
MotorizationNo
AutoguideNo
Exposure total time13.3 s
Exposure details33/8+39/10+21/4 s
Sky transparency (naked eye max mag)4
Seeing2
Moon phase0 °
Moon elongation150 °
Air mass3.3
LocationVersailles
Resulting picture sampling (scale)2 "/pix
Image processingbinnig, flat, alignement, somme, retrait gradient
Remarks or commentsimages RAW - Afrho sur couche rouge
Observation submission date2024 Mar 25 14h22m33s

(Record n° 28336)

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