17P/Holmes (Record n° 9849)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2013 Aug 02 03h47 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 16.5 m2 standard deviation 0.1 Aperture radius used for m2 4.8 " r (dist/Sun) 2.701 AU d (dist/Earth) 1.996 AU Right ascension 16 51 33.42 h m s Declination -43 27 45.5 ° ' " 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 2013.08.02
AC2 amaury@spaceobs.com
NET UCAC-4
0017P C2013 08 02.15748 16 51 33.42 -43 27 45.5 16.4 N W96
0017P C2013 08 02.17098 16 51 33.35 -43 27 37.7 16.5 N W96
0017P C2013 08 02.19578 16 51 33.26 -43 27 23.0 16.7 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 25 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 02 17h45m32s Observation modification date 2013 Aug 02 17h48m00s