29P/Schwassmann-Wachmann (Record n° 19814)
Perihelion distance : 5.8 AU
Inclination to ecliptic : 9 °
Orbital period : 14.91 years
Eccentricity : 0.04
NASA/JPL elements
IAU/MPC elements
On 2018 Sep 26 21h08 UT by Nicolas Biver
(Copyright Nicolas Biver)Coma Total magnitude (m1) 12.0 Aperture radius for m1 0.33 ' Magnitude (MPC m2) 13.1 Aperture radius for m2 6.0 " Coma diameter 0.63 ' Coma condensation degree
(DC) 7 r (dist/Sun) 5.772 AU d (dist/Earth) 4.814 AU Right ascension 343.51333 ° Declination -0.11111 ° Instrumental configuration Config1 Instrument Dobson 407 F/D 4.3 Instrument type Newton Instrument aperture (0=naked eye) 407 mm Instrument focale length 1750 mm Filter None Camera sony alpha 7s Sensor DC Sensor size 36x24 mm2 Sensor pixels number 4240x2832 Binning 2x2 Mount dobson Motorization No Autoguide No Exposure total time 11.1 s Exposure details 45x1/4s Sky transparency (naked eye max mag) 4.5 Seeing 3 Moon phase 20 ° Moon elongation 40 ° Air mass 1.8 Location Versailles Reference stars catalog (ast) Tycho-2 Used softwares IRIS Resulting picture sampling (scale) 2.0 "/pix Image processing alignement, somme, retrait gradient Remarks or comments magnitude visuelle au T407x72: m1=11.8 Observation submission date 2018 Sep 30 22h00m48s Observation modification date 2018 Oct 01 11h00m06s