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29P/Schwassmann-Wachmann

Perihelion distance : 5.8 AU
Inclination to ecliptic : 9 °
Orbital period : 14.91 years
Eccentricity : 0.04

NASA/JPL elements
IAU/MPC elements


On 2022 Dec 27 01h14 UT by Nicolas Biver


(Copyright Nicolas Biver)

Coma Total magnitude (m1)11.4
Aperture radius for m11.3 '
Magnitude (MPC m2)14.3
Aperture radius for m27.5 "
Coma diameter2.6 '
Coma condensation degree (DC)2
r (dist/Sun) 6.056 AU
d (dist/Earth) 5.079 AU
Instrumental configurationConfig1
InstrumentDobson 407mm F/D 4.3
Instrument typeNewton
Instrument aperture (0=naked eye)407 mm
Instrument focale length1750 mm
FilterNone
CameraSONY alpha7S
SensorDC
Sensor size36*24 mm2
Sensor pixels number4240*2832
Sensor temperature3 °C
Binning2x2
Mountdobson sur table equatoriale JMI
MotorizationYes
AutoguideNo
Exposure total time77 s
Exposure details16x2s+7x3.2s+9x2.5s
Sky transparency (naked eye max mag)5.5
Seeing3
Moon phase150 °
Moon elongation180 °
Air mass1.08
LocationBoulonville
Reference stars catalog (ast)APASS
Used softwaresIRIS
Resulting picture sampling (scale)2 "/pix
Image processingbinning,flat,alignement,somme,retrait gradient
Remarks or commentspetit sursaut: noyau ponctuel m=14.3
Observation submission date2022 Dec 27 20h20m42s

(Record n° 26549)

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