C/2016 R2 (PANSTARRS) (Record n° 18853)
Orbital period : 10687.00 years
NASA/JPL elements
IAU/MPC elements
On 2018 Feb 12 19h26 UT by Nicolas Biver
(Copyright Nicolas Biver)Coma Total magnitude (m1) 12.0 Aperture radius used for m1 1.5 ' Nuclear magnitude (m2) 14.2 Aperture radius used for m2 10 " Coma diameter 3 ' Coma condensation degree
(DC) 3 r (dist/Sun) 2.759 AU d (dist/Earth) 2.414 AU Right ascension 03 58 17.8 h m s Declination +26 14 20 ° ' " 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 alpha 7s Sensor DC Sensor size 36x24 mm2 Sensor pixels number 4240x2832 Binning 2x2 Mount Dobson Motorization No Autoguide No Exposure total time 52.3 s Exposure details 25/3+72/2+8s Sky transparency (naked eye max mag) 5 Seeing 4 Air mass 1.15 Location Crespières (78) Reference stars catalog Tycho-2 Used softwares IRIS Resulting picture sampling (scale) 2.0 "/pix Image processing somme et recallage + gradient retiré Remarks or comments magnitude donnée en Vert, après séparation RGB:
mR=12.4, mG=12.0, mB=11.2
image recadrée 20'*40' Observation submission date 2018 Feb 14 15h42m49s