46P/Wirtanen (Record n° 20247)
Orbital period : 5.44 years
NASA/JPL elements
IAU/MPC elements
On 2018 Dec 18 00h23 UT by Patrice Le Guen
(Copyright Patrice Le Guen)Coma diameter 12 ' Coma condensation degree
(DC) 0 Tail length 0 ° Tail position angle
(PA) 292 ° r (dist/Sun) 1.058 AU d (dist/Earth) 0.078 AU Right ascension 04 14 49.43 h m s Declination +27 37 36.2 ° ' " Instrument CANON 35-55mm Instrument type Camera lens Instrument aperture (0=naked eye) 8 mm Instrument focale length 48 mm Instrument focale/diameter 5.6 Filter(s) None Camera CANON 450D Sensor DC Sensor size 22.2x14.8 mm2 Sensor pixels number 4272x2848 Sensor temperature 10 °C Binning 1x1 Mount TAKAHASHI EM200 Motorization Yes Autoguide No Exposure total time 390 s Exposure details 13x30s Sky transparency (naked eye max mag) 5 Seeing 5 Moon phase 38 ° Moon elongation 44 ° Air mass 2.13 Location TOULON 83000 FRANCE Reference stars catalog UCAC-4 Used softwares PRISM Resulting picture sampling (scale) 41 "/pix Remarks or comments Crop de Wirtanen proche de l'amas ouvert M45 des Pléïades. Observation submission date 2018 Dec 26 21h18m10s Observation modification date 2018 Dec 26 21h24m24s