C/2017 D2 (Barros) (Record n° 18090)
Orbital period : 5851.00 years
NASA/JPL elements
IAU/MPC elements
On 2017 Aug 20 22h39 UT by Luc ArnoldNuclear magnitude (m2) 16.5 m2 standard deviation 0.0 Aperture radius used for m2 6.25 " Tail length 0.0194 ° Tail position angle
(PA) 233 ° r (dist/Sun) 2.517 AU d (dist/Earth) 1.529 AU Right ascension 21 24 53.10 h m s Declination -26 22 45.2 ° ' " 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 Astrodon Sloan r' Gen-1 for 29P, and CLR for C/2017 D2
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 2017.08.21 01:27:21
AC2 luc.arnold@osupytheas.fr
NET UCAC-4
CK17D020 KC2017 08 20.94346 21 24 53.10 -26 22 45.2 16.5 N K25
CK17D020 KC2017 08 20.95052 21 24 52.77 -26 22 38.8 16.5 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) Clear 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 21 11h13m26s Observation modification date 2017 Aug 21 13h57m28s