117P/Helin-Roman-Alu (Record n° 12567)
Orbital period : 8.25 years
NASA/JPL elements
IAU/MPC elements
On 2014 Sep 20 01h33 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 15.8 Aperture radius used for m2 5.5 " Tail length 0.10 ° r (dist/Sun) 3.176 AU d (dist/Earth) 2.499 AU Right ascension 20 27 37.42 h m s Declination -30 17 29.4 ° ' " MPC report COD W96
CON ALAIN MAURY [amaury@spaceobs.com]
OBS A. Maury, J.-F. Soulier
MEA J.-F. Soulier
TEL 0.4-m f/8 Ritchey-Chretien + CCD
ACK MPCReport file updated 2014.09.20
AC2 amaury@spaceobs.com
NET UCAC-4
0117P C2014 09 20.06433 20 27 37.42 -30 17 29.4 15.8 N W96
0117P C2014 09 20.08986 20 27 37.46 -30 17 25.4 15.8 N W96
0117P C2014 09 20.11690 20 27 37.47 -30 17 20.4 15.8 N W96
Instrument type Ritchey-Chretien Instrument aperture (0=naked eye) 400 mm Instrument focale length 3200 mm Instrument focale/diameter 8 Camera QHY Sensor CCD Sensor temperature -40 °C Binning 2x2 Mount PARAMOUNT Autoguide Yes Exposure details 30 x 120s Moon elongation 162 ° Air mass 1.01 Observatory MPC code W96 Location Chili Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 0.69 "/pix Observation submission date 2014 Sep 20 09h26m59s Observation modification date 2014 Sep 20 09h29m39s