117P/Helin-Roman-Alu (Record n° 2870)
Orbital period : 8.25 years
NASA/JPL elements
IAU/MPC elements
On 2008 Jan 28 19h15 UT by Francois KugelNuclear magnitude (m2) 17.5 m2 standard deviation 0.4 r (dist/Sun) 4.369 AU d (dist/Earth) 4.406 AU Right ascension 01 50 53.77 h m s Declination +08 39 26.5 ° ' " 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 01 28.80212 01 50 53.77 +08 39 26.5 17.8 N A77
0117P C2008 01 28.80749 01 50 53.94 +08 39 28.1 17.8 N A77
0117P C2008 01 28.81338 01 50 54.10 +08 39 29.4 17.0 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 21h48m50s