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13P/Olbers

Orbital period : 68.50 years

NASA/JPL elements
IAU/MPC elements


On 2024 Mar 14 20h14 UT by Nicolas Biver


(Copyright Nicolas Biver)

Coma Total magnitude (m1)11.5
Aperture radius used for m12.6 '
Nuclear magnitude (m2)13.9
Aperture radius used for m26 "
Coma diameter2.5 '
Coma condensation degree (DC)7
Tail length0.02 °
Tail position angle (PA)90 °
r (dist/Sun) 1.950 AU
d (dist/Earth) 2.319 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 temperature9 °C
Binning2x2
Mountdobson sur table equatoriale JMI
MotorizationYes
AutoguideNo
Exposure total time104.6 s
Exposure details29x1+16x2+31x1.6s
Sky transparency (naked eye max mag)5.5
Seeing2
Moon phase150 °
Moon elongation12 °
Air mass3
LocationBoulonville
Reference stars catalogAPASS
Used softwaresIRIS
Resulting picture sampling (scale)2 "/pix
Image processingbinning, flat, alignement, alignement comète, somme, retrait gradient IRIS
Remarks or commentsPhotométrie sur 55s RAW à 20h13.4 UT
Observation submission date2024 Mar 17 15h07m45s

(Record n° 28315)

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