C/2016 R2 (PANSTARRS) (Record n° 18881)
Orbital period : 10687.00 years
NASA/JPL elements
IAU/MPC elements
On 2018 Feb 17 20h04 UT by Nicolas Biver
(Copyright Nicolas Biver)Coma Total magnitude (m1) 11.7 Aperture radius used for m1 1.5 ' Nuclear magnitude (m2) 14.5 Aperture radius used for m2 8 " Coma diameter 2 ' Coma condensation degree
(DC) 3 Tail length 0.2 ° Tail position angle
(PA) 95 ° r (dist/Sun) 2.742 AU d (dist/Earth) 2.472 AU Right ascension 03 58 49.4 h m s Declination +27 31 39.7 ° ' " Instrumental configuration Config1 Instrument Dobson T407mm 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 36*24 mm2 Sensor pixels number 4240*2832 Binning 2x2 Mount Dobson Motorization No Autoguide No Exposure total time 130.8 s Exposure details 55*1/3+169*1/2+26*1+2sec Sky transparency (naked eye max mag) 5.5 Seeing 3 Moon phase 25 ° Air mass 1.2 Location Boulonville (28) Reference stars catalog NOMAD Used softwares IRIS Resulting picture sampling (scale) 2.0 "/pix Image processing somme, alignement et retrait gradient Remarks or comments Magnitude en niveaux de gris = voie verte:
mG=11.7 mR=12.5, mB=11.2
Queue 2' en R et 11' en B! Observation submission date 2018 Feb 19 15h28m58s