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46P/Wirtanen

Orbital period : 5.43 years

NASA/JPL elements
IAU/MPC elements


On 2018 Dec 12 00h20 UT by Nicolas Biver


(Copyright Nicolas Biver)

Coma Total magnitude (m1)4.8
Aperture radius used for m134 '
Nuclear magnitude (m2)9.2
Aperture radius used for m239 "
Coma diameter66 '
Coma condensation degree (DC)3
r (dist/Sun) 1.055 AU
d (dist/Earth) 0.082 AU
Right ascension03 24 54.0 h m s
Declination+05 49 00 ° ' "
Instrumental configurationConfig2
InstrumentSony alpha 7s + 135mm F/D 2.5 sur monture minitrack
Instrument typeCamera lens
Instrument aperture (0=naked eye)54 mm
Instrument focale length135 mm
Instrument focale/diameter2.5
Filter(s)None
Camerasony alpha 7s
SensorDC
Sensor size36x24 mm2
Sensor pixels number4240x2832
Binning2x2
MountMINITRACK LX2 OMEGON
TrackingYes
AutoguideNo
Exposure total time200 s
Exposure details10x20s
Sky transparency (naked eye max mag)6
Observatory MPC codeJ86
LocationiIRAM-30m Pico Veleta, Espagne
Reference stars catalogTycho-2
Photometry|Astrometry softwareIRIS
Resulting picture sampling (scale)25.9 "/pix
Image processingretrait dark (images raw), alignement sur la comète et somme + retrait gradient. visu DDP 5
Remarks or commentsCrop 8.6x8.6°
Observation submission date2018 Dec 28 14h55m53s

(Record n° 20269)

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