17P/Holmes (Record n° 9841)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2013 Aug 01 03h55 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 16.3 m2 standard deviation 0.1 Aperture radius used for m2 4.8 " r (dist/Sun) 2.706 AU d (dist/Earth) 1.991 AU Right ascension 16 51 37.46 h m s Declination -43 37 18.9 ° ' " MPC report COD W96
CON ALAIN MAURY [amaury@spaceobs.com]
OBS A. Maury
MEA J.F Soulier
TEL 0.4-m f/8 Ritchey-Chretien + CCD
ACK MPCReport file updated 2013.08.01
AC2 amaury@spaceobs.com
NET UCAC-4
0017P C2013 08 01.16348 16 51 37.46 -43 37 18.9 16.4 N W96
0017P C2013 08 01.18777 16 51 37.24 -43 37 04.6 16.2 N W96
0017P C2013 08 01.21733 16 51 37.10 -43 36 47.2 16.4 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 Autoguide Yes Exposure details 22 X 180s Observatory MPC code W96 Location Chili Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 0.69 "/pix Observation submission date 2013 Aug 01 16h30m13s Observation modification date 2013 Aug 01 16h55m12s