C/2017 D2 (Barros) (Record n° 18098)
Orbital period : 5851.00 years
NASA/JPL elements
IAU/MPC elements
On 2017 Aug 21 22h49 UT by Luc ArnoldNuclear magnitude (m2) 16.7 m2 standard deviation 0.1 Aperture radius used for m2 6.25 " Tail length 0.017 ° Tail position angle
(PA) 222 ° r (dist/Sun) 2.519 AU d (dist/Earth) 1.532 AU Right ascension 21 23 55.51 h m s Declination -26 07 06.3 ° ' " MPC report COD K25
CON L. Arnold, OHP 04870 Saint-Michel-l'Observatoire, France [luc.arnold@osupytheas.fr]
OBS L. Arnold
MEA L. Arnold
TEL 0.20-m f/5.5 Newtonian reflector + CCD
COM CCD SBIG ST10XME, filter Sloan r' Gen-1 Astrodon, except CLR clear for 237P
COM Photometry aperture radius 6.25 arcsec (5 pixels, 1.25 arcsec/pix)
COM Images at URL http://www.obs-hp.fr/~larnold/v2/LucArnold/Welcome.html
ACK MPCReport file updated 2017.08.22 08:42:57
AC2 luc.arnold@osupytheas.fr
NET UCAC-4
CK17D020 KC2017 08 21.95057 21 23 55.51 -26 07 06.3 16.7 N K25
CK17D020 KC2017 08 21.96235 21 23 54.83 -26 06 55.4 16.6 N K25
Instrument T205 f/D 5.5 Instrument type Newton Instrument aperture (0=naked eye) 200 mm Instrument focale length 1100 mm Instrument focale/diameter 5.5 Filter(s) r Camera SBIG ST10XME Sensor CCD Sensor temperature -15 °C Binning 1x1 Observatory MPC code K25 Reference stars catalog UCAC-4
Used softwares ASTROMETRICA URL for more information or pictures http://www.obs-hp.fr/~larnold/v2/LucArnold/C2017D2_Barros.html Observation submission date 2017 Aug 22 12h17m27s Observation modification date 2017 Aug 22 12h21m24s