13P/Olbers (Record n° 28059)
Orbital period : 68.50 years
NASA/JPL elements
IAU/MPC elements
On 2024 Jan 11 20h06 UT by Nicolas Biver
(Copyright Nicolas Biver)Coma Total magnitude (m1) 15.1 Aperture radius used for m1 0.5 ' Nuclear magnitude (m2) 16.6 Aperture radius used for m2 6 " Coma diameter 0.6 ' Coma condensation degree
(DC) 6 r (dist/Sun) 2.608 AU d (dist/Earth) 2.178 AU Instrumental configuration Config1 Instrument Dobson 407mm F/D 4.3 Instrument type Newton Instrument aperture (0=naked eye) 407 mm Instrument focale length 1750 mm Instrument focale/diameter 4.29 Filter(s) None Camera SONY alpha7S Sensor DC Sensor size 36*24 mm2 Sensor pixels number 4240*2832 Sensor temperature -3 °C Binning 2x2 Mount dobson sur table equatoriale JMI Motorization Yes Autoguide No Exposure total time 122 s Exposure details 45x1.6+25x2.0s Sky transparency (naked eye max mag) 5.5 Seeing 2 Moon phase 180 ° Moon elongation 180 ° Air mass 2.1 Location Boulonville Reference stars catalog APASS Used softwares IRIS Resulting picture sampling (scale) 2 "/pix Image processing binning,flat,alignement,somme,retrait gradient Observation submission date 2024 Jan 15 13h58m44s Observation modification date 2024 Feb 06 18h45m52s