17P/Holmes (Record n° 9668)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2013 May 31 01h20 UT by Jean-Francois SoulierNuclear magnitude (m2) 17.1 m2 standard deviation 0.2 Aperture radius used for m2 4.5 " r (dist/Sun) 2.973 AU d (dist/Earth) 2.058 AU Right ascension 17 46 53.72 h m s Declination -49 07 57.0 ° ' " MPC report COD W96
CON ALAIN MAURY [amaury@spaceobs.com]
OBS A. Maury, J.F. Soulier
MEA J.F. Soulier
TEL 0.4-m f/8 Ritchey-Chretien + CCD
ACK MPCReport file updated 2013.05.30 and 31
AC2 amaury@spaceobs.com
NET UCAC-4
0017P KC2013 05 31.05565 17 46 53.72 -49 07 57.0 17.3 N W96
0017P KC2013 05 31.07003 17 46 52.71 -49 07 58.6 17.1 N W96
0017P KC2013 05 31.11321 17 46 49.98 -49 08 03.7 16.9 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 pixels number 3326 x 2504 Sensor temperature -35 °C Binning 2x2 Mount PARAMOUNT Observatory MPC code W96 Location Chili Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Observation submission date 2013 Jun 21 21h51m07s