17P/Holmes (Record n° 13367)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2015 Jan 31 20h51 UT by Luc ArnoldNuclear magnitude (m2) 16.6 m2 standard deviation 0.1 Aperture radius used for m2 6.25 " r (dist/Sun) 3.011 AU d (dist/Earth) 2.454 AU Right ascension 04 06 58.82 h m s Declination +42 02 06.4 ° ' " MPC report COD K25
CON L. Arnold, OHP 04870 Saint-Michel-l'Observatoire, France [luc.arnold@osupytheas.fr]
OBS L. Arnold
MEA L. Arnold
TEL 0.20-m f/5.5 Newtonian reflector + CCD
COM filter SDSS r', photometry aperture radius 6.25 arcsec
ACK MPCReport file updated 2015.01.31 23:09:51
AC2 luc.arnold@osupytheas.fr
NET UCAC-4
0017P KC2015 01 31.86846 04 06 58.82 +42 02 06.4 16.6 N K25
0017P KC2015 01 31.87831 04 06 59.15 +42 02 00.9 16.5 N K25
Instrument type Newton Instrument aperture (0=naked eye) 200 mm Instrument focale length 1100 mm Instrument focale/diameter 5.5 Filter(s) r' Camera SBIG ST10-XME Sensor CCD Observatory MPC code K25 Reference stars catalog UCAC-4
Used softwares ASTROMETRICA URL for more information or pictures http://www.obs-hp.fr/~larnold/v2/LucArnold/Welcome.html Observation submission date 2015 Feb 02 16h06m51s