17P/Holmes (Record n° 12617)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2014 Sep 25 07h01 UT by Jean-Gabriel Bosch
(Copyright Jean-Gabriel Bosch)Nuclear magnitude (m2) 17.3 m2 standard deviation 0.2 Aperture radius used for m2 5.6 " r (dist/Sun) 2.472 AU d (dist/Earth) 2.077 AU Right ascension 05 05 49.86 h m s Declination +45 53 53.7 ° ' " MPC report COD W96
CON ALAIN MAURY [amaury@spaceobs.com]
OBS A. Maury, J.-G Bosch
MEA J.-G Bosch
TEL 0.4-m f/8 Ritchey-Chretien + CCD
ACK MPCReport file updated 2014.09.25 09:34:35
AC2 jean-gabriel.bosch@unige.ch
NET UCAC-4
0017P C2014 09 25.29246 05 05 49.86 +45 53 53.7 17.5 N W96
0017P C2014 09 25.33475 05 05 51.76 +45 54 14.7 17.1 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 QHY9 Sensor CCD Sensor temperature -35 °C Binning 2x2 Mount Paramount Autoguide Yes Exposure details 30x2mn Air mass 2.5 Observatory MPC code W96 Location San Pedro Atacama Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 0.69 "/pix URL for more information or pictures http://transitionsciel.blogspot.fr/ Observation submission date 2014 Sep 25 18h00m49s Observation modification date 2014 Sep 25 18h05m16s