Home

12P/Pons-Brooks

Orbital period : 71.00 years

NASA/JPL elements
IAU/MPC elements


On 2023 Nov 01 18h30 UT by Nicolas Biver


(Copyright Nicolas Biver)

Coma Total magnitude (m1)11.1
Aperture radius used for m10.3 '
Nuclear magnitude (m2)11.3
Aperture radius used for m26 "
Coma diameter0.5 '
Coma condensation degree (DC)9
Afrho26500 cm
Afrho error3000 cm
r (dist/Sun) 2.751 AU
d (dist/Earth) 2.882 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 temperature13 °C
MountDobson
MotorizationNo
AutoguideNo
Exposure total time15.3 s
Exposure details46x1/3s
Sky transparency (naked eye max mag)3.5
Seeing3
Moon phase45 °
Moon elongation180 °
Air mass1.27
LocationVersailles
Reference stars catalogAPASS
Resulting picture sampling (scale)2 "/pix
Image processingbinnig, flat, alignement, somme, retrait gradient
Remarks or commentsMagnitude sur les 8.3s de pose en RAW, Afrho couche R - nouveau sursaut!
Observation submission date2023 Nov 02 00h44m05s

(Record n° 27786)

Home