117P/Helin-Roman-Alu (Record n° 5989)
Orbital period : 8.25 years
NASA/JPL elements
IAU/MPC elements
On 2012 Mar 15 23h23 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 17.2 Aperture radius used for m2 7.5 " r (dist/Sun) 4.320 AU d (dist/Earth) 3.356 AU Right ascension 11 12 15.69 h m s Declination +16 48 48.3 ° ' " MPC report COD C10
CON JEAN-FRANCOIS SOULIER [jean-francois.soulier2@wanadoo.fr]
OBS J.F. Soulier
MEA J.F. Soulier
TEL 0.300-m f/4 Newtonian reflector + CCD
ACK MPCReport file updated 2012.03.15
AC2 jean-francois.soulier2@wanadoo.fr
NET USNO-B1.0
0117P C2012 03 15.97425 11 12 15.69 +16 48 48.3 17.2 N C10
0117P C2012 03 15.98596 11 12 15.25 +16 48 50.5 17.2 N C10
0117P C2012 03 15.99861 11 12 14.74 +16 48 52.6 17.2 N C10
Instrument type Newton Instrument aperture (0=naked eye) 300 mm Instrument focale length 1200 mm Instrument focale/diameter 4 Camera ST7-XMEd Sensor CCD Sensor size 6.9 x 4.6 mm2 Sensor pixels number 765 x 510 Sensor temperature -20 °C Binning 1x1 Mount F60a Autoguide No Exposure total time 1800 s Exposure details 15 X 120s Seeing 2 Moon elongation 114 ° Air mass 1.17 Observatory MPC code C10 Location 77 Reference stars catalog USNO-B1.0
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.5 "/pix Image processing PRISMV8,LOG,FC,GIMP Observation submission date 2012 Mar 16 05h57m29s Observation modification date 2012 Mar 18 17h21m09s