17P/Holmes (Record n° 9893)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2013 Aug 12 00h51 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) 2.659 AU d (dist/Earth) 2.056 AU Right ascension 16 52 47.51 h m s Declination -41 53 25.5 ° ' " 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 2013.08.12
AC2 amaury@spaceobs.com
NET UCAC-4
0017P KC2013 08 12.03545 16 52 47.51 -41 53 25.5 16.4 N W96
0017P KC2013 08 12.06311 16 52 47.89 -41 53 09.7 16.7 N W96
0017P KC2013 08 12.09628 16 52 48.33 -41 52 50.1 16.4 N W96
Instrument type Ritchey-Chretien Instrument aperture (0=naked eye) 400 mm Instrument focale length 3200 mm Instrument focale/diameter 8 Filter(s) R (RGB) Camera QHY9 Sensor CCD Sensor pixels number 3326 x 2504 Sensor temperature -35 °C Binning 2x2 Mount PARAMOUNT Autoguide Yes Exposure details 42 X 120s Moon elongation 59 ° Air mass 1.07 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 12 21h59m44s Observation modification date 2013 Aug 12 22h04m04s