117P/Helin-Roman-Alu (Record n° 11754)
Orbital period : 8.25 years
NASA/JPL elements
IAU/MPC elements
On 2014 May 07 08h16 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 16 m2 standard deviation 0.1 Aperture radius used for m2 5.5 " Coma diameter 0.78 ' Tail length 0.10 ° r (dist/Sun) 3.063 AU d (dist/Earth) 2.768 AU Right ascension 20 54 12.32 h m s Declination -25 14 53.4 ° ' " MPC report COD W96
CON ALAIN MAURY [amaury@spaceobs.com]
CON JEAN-FRANCOIS SOULIER [jean-francois.soulier2@wanadoo.fr
OBS A. Maury, J.-F. Soulier
MEA J.-F. Soulier
TEL 0.4-m f/8 Ritchey-Chretien + CCD
ACK MPCReport file updated 2014.05.07
AC2 amaury@spaceobs.com
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-4
0117P C2014 05 07.34475 20 54 12.32 -25 14 53.4 16.0 N W96
0117P C2014 05 07.35934 20 54 13.06 -25 14 53.5 16.1 N W96
0117P C2014 05 07.37397 20 54 13.71 -25 14 54.4 16.0 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 20 X 120s Moon elongation 164 ° Air mass 1.15 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 May 07 13h49m41s Observation modification date 2014 May 08 19h37m39s