117P/Helin-Roman-Alu (Record n° 11632)
Orbital period : 8.25 years
NASA/JPL elements
IAU/MPC elements
On 2014 Apr 18 08h10 UT by Thierry Noel
(Copyright Thierry Noel)Coma Total magnitude (m1) 15.5 Aperture radius used for m1 0.4 ' Nuclear magnitude (m2) 16.1 m2 standard deviation 0.1 Aperture radius used for m2 5.6 " r (dist/Sun) 3.058 AU d (dist/Earth) 3.016 AU Right ascension 20 36 09.85 h m s Declination -25 17 59.7 ° ' " MPC report COD W96
CON ALAIN MAURY [amaury@spaceobs.com]
OBS A. Maury, T. Noel
MEA T. Noel
TEL 0.4-m f/8 Ritchey-Chretien + CCD
ACK MPCReport file updated 2014.04.18 15:23:20
AC2 thierrynoel1@laposte.net
NET UCAC-4
0117P C2014 04 18.33995 20 36 09.85 -25 17 59.7 16.1 N W96
0117P C2014 04 18.35652 20 36 10.90 -25 17 58.9 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 -30 °C Binning 4x4 Mount Paramount Exposure details 25x1mn Observatory MPC code W96 Location San Pedro de Atacama, Chile Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.38 "/pix Observation submission date 2014 Apr 18 15h29m24s Observation modification date 2014 May 21 21h34m29s