2P/Encke (Record n° 17086)
Perihelion distance : 0.34 AU
Inclination to ecliptic : 11 °
Orbital period : 3.3 years
Eccentricity : 0.85
NASA/JPL elements
IAU/MPC elements
On 2017 Jan 28 19h39 UT by Nicolas Biver
(Copyright Nicolas Biver)Coma Total magnitude (m1) 12.0 Aperture radius for m1 1.5 ' Coma diameter 3 ' Coma condensation degree
(DC) 2 r (dist/Sun) 0.981 AU d (dist/Earth) 1.303 AU Right ascension 353.10583 ° Declination +6.07778 ° Instrumental configuration Config1 Instrument Dobson 407mm Instrument type Newton Instrument aperture (0=naked eye) 407 mm Instrument focale length 1750 mm Filter None Camera Sony A7s Sensor DC Sensor size 24x36 mm2 Sensor pixels number 2832x4240 Binning 2x2 Mount dobson! Motorization No Autoguide No Exposure total time 12.6 s Picture exposure details 17x1/4+25x1/3s Sky transparency (naked eye max mag) 5.5 Seeing 4 Moon phase 180 ° Air mass 2 Location Crespières (78121), France Reference stars catalog (ast) Tycho-2 Used softwares IRIS Resulting picture sampling (scale) 2 "/pix Image processing somme de 17 poses à 1/4s et 25 à 1/3s Remarks or comments Nord vers PA=315 Observation submission date 2017 Jan 31 09h43m08s