117P/Helin-Roman-Alu (Record n° 16308)
Orbital period : 8.25 years
NASA/JPL elements
IAU/MPC elements
On 2016 Oct 10 05h31 UT by Jean-Gabriel Bosch
(Copyright Jean-Gabriel Bosch)Nuclear magnitude (m2) 17.9 m2 standard deviation 0.0 Aperture radius used for m2 6.2 " r (dist/Sun) 4.656 AU d (dist/Earth) 3.929 AU Right ascension 04 12 20.14 h m s Declination +20 33 59.6 ° ' " MPC report COD W96
CON Jean Gabriel Bosch [jean-gabriel.Bosch@unige.ch]
OBS A. Maury, J.-B. de Vanssay, J.-G.Bosch
MEA J.-G.Bosch
TEL 0.4-m f/5.4 Ritchey-Chretien + CCD
ACK MPCReport file updated 2016.10.10 06:46:31
AC2 [jean-gabriel.Bosch@unige.ch]
NET UCAC-4
0117P C2016 10 10.22976 04 12 20.14 +20 33 59.6 17.9 N W96
0117P C2016 10 10.26385 04 12 19.56 +20 33 59.2 17.9 N W96
Instrument type Ritchey-Chretien Instrument aperture (0=naked eye) 400 mm Instrument focale length 2160 mm Instrument focale/diameter 5.4 Filter(s) None Camera QHY Sensor CCD Sensor temperature -25 °C Binning 3x3 Mount VMA 200 Autoguide Yes Exposure details 40x1mn Air mass 1.6 Observatory MPC code W96 Location San Pedro Atacama Chili Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.56 "/pix Observation submission date 2016 Oct 10 11h48m25s Observation modification date 2016 Oct 10 12h57m46s