117P/Helin-Roman-Alu (Record n° 11706)
Orbital period : 8.25 years
NASA/JPL elements
IAU/MPC elements
On 2014 Apr 30 08h30 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 16.2 Aperture radius used for m2 5.5 " r (dist/Sun) 3.061 AU d (dist/Earth) 2.859 AU Right ascension 20 48 13.19 h m s Declination -25 13 16.3 ° ' " 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 2014.04.30
AC2 amaury@spaceobs.com
NET UCAC-4
0117P C2014 04 30.35382 20 48 13.19 -25 13 16.3 16.2 N W96
0117P C2014 04 30.36223 20 48 13.60 -25 13 16.0 16.1 N W96
0117P C2014 04 30.36987 20 48 14.03 -25 13 16.0 16.2 N W96
0117P C2014 04 30.38383 20 48 14.78 -25 13 16.1 16.2 N W96
0117P C2014 04 30.39147 20 48 15.20 -25 13 15.8 16.1 N W96
0117P C2014 04 30.39911 20 48 15.64 -25 13 16.1 16.2 N W96
0117P C2014 04 30.40684 20 48 15.99 -25 13 16.0 16.2 N W96
0117P C2014 04 30.41448 20 48 16.39 -25 13 16.2 16.2 N W96
Instrument type Ritchey-Chretien Instrument aperture (0=naked eye) 400 mm Instrument focale length 3200 mm Instrument focale/diameter 8 Camera QHY9 Sensor CCD Sensor temperature -35 °C Binning 2x2 Mount PARAMOUNT Autoguide Yes Exposure details 42 X 60s Moon elongation 105 ° Air mass 1.17 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 Apr 30 12h16m26s Observation modification date 2014 Apr 30 12h36m18s