17P/Holmes (Record n° 13355)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2015 Jan 31 01h13 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 16.6 m2 standard deviation 0.2 Aperture radius used for m2 6.9 " r (dist/Sun) 3.011 AU d (dist/Earth) 2.454 AU Right ascension 04 06 35.48 h m s Declination +42 08 30.6 ° ' " 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 2015.01.31
AC2 amaury@spaceobs.com
NET UCAC-4
0017P KC2015 01 31.05062 04 06 35.48 +42 08 30.6 16.8 N W96
0017P KC2015 01 31.06208 04 06 35.78 +42 08 24.7 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) None Camera QHY Sensor CCD Sensor temperature -25 °C Binning 2x2 Mount PARAMOUNT Autoguide Yes Exposure details 30 x 60s Moon elongation 31 ° Air mass 2.53 Observatory MPC code W96 Location San Pedro de Atacama, Chili Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 0.69 "/pix Observation submission date 2015 Jan 31 03h26m49s Observation modification date 2015 Feb 04 13h52m08s