117P/Helin-Roman-Alu (Record n° 3221)
Orbital period : 8.25 years
NASA/JPL elements
IAU/MPC elements
On 2008 Dec 18 18h11 UT by Francois KugelNuclear magnitude (m2) 17.9 m2 standard deviation 0.1 r (dist/Sun) 4.884 AU d (dist/Earth) 3.948 AU Right ascension 04 16 13.37 h m s Declination +23 29 22.6 ° ' " MPC report COD A77
CON FRANCOIS KUGEL [fkugel@wanadoo.fr]
OBS C. Rinner, F. Kugel
MEA F. Kugel
TEL 0.5-m f/3 reflector + CCD
AC2 fkugel@wanadoo.fr
NET USNO-B1.0
0117P C2008 12 18.75773 04 16 13.37 +23 29 22.6 18.0 N A77
0117P C2008 12 18.77010 04 16 12.92 +23 29 21.3 17.8 N A77
Instrument type Newton Instrument aperture (0=naked eye) 500 mm Instrument focale length 1500 mm Instrument focale/diameter 3 Sensor CCD Observatory MPC code A77 Reference stars catalog USNO-B1.0
Observation submission date 2011 May 06 22h02m43s