C/2017 D2 (Barros) (Record n° 17992)
Orbital period : 5851.00 years
NASA/JPL elements
IAU/MPC elements
On 2017 Jul 28 06h51 UT by Thierry Noel
(Copyright Thierry Noel)Nuclear magnitude (m2) 16.7 m2 standard deviation 0.0 Aperture radius used for m2 6.4 " r (dist/Sun) 2.490 AU d (dist/Earth) 1.520 AU Right ascension 21 49 22.67 h m s Declination -31 50 49.6 ° ' " MPC report COD W96
CON Thierry Noel [thierrynoel38a@free.fr]
OBS A. Maury, J.-B. de Vanssay, T. Noel
MEA T. Noel
TEL 0.4-m f/5.4 Ritchey-Chretien + CCD
COM Aperture radius for m1 : 0.8'
COM Aperture radius for m2 : 6.4"
ACK MPCReport file updated 2017.07.28 12:40:34
AC2 thierrynoel38a@free.fr
NET Gaia DR1
CK17D020 C2017 07 28.28571 21 49 22.67 -31 50 49.6 16.7 N W96
CK17D020 C2017 07 28.30459 21 49 21.52 -31 50 36.1 16.7 N W96
CK17D020 C2017 07 28.32430 21 49 20.30 -31 50 21.9 16.7 N W96
Instrument Marcon RC 400 Instrument type Ritchey-Chretien Instrument aperture (0=naked eye) 400 mm Instrument focale length 2160 mm Instrument focale/diameter 5.4 Camera QHY9 Sensor CCD Sensor temperature -20 °C Binning 3x3 Mount VMA 200 Autoguide No Exposure details 50x1mn Observatory MPC code W96 Location San Pedro de Atacama, Chile Reference stars catalog Gaia DR1
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.59 "/pix Image processing Prism (-dark, /flat), Astrometrica (add), Iris (levels, ddp, crop) Observation submission date 2017 Jul 28 12h48m29s Observation modification date 2017 Jul 28 22h41m36s