17P/Holmes (Record n° 13408)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2015 Feb 18 20h30 UT by Luc ArnoldNuclear magnitude (m2) 17.9 m2 standard deviation 0.1 Aperture radius used for m2 6.25 " r (dist/Sun) 3.088 AU d (dist/Earth) 2.752 AU Right ascension 04 19 23.70 h m s Declination +39 59 23.7 ° ' " 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: clear CLR Astrodon. Photometry aperture radius 6.25 arcsec
ACK MPCReport file updated 2015.02.18 23:31:53
AC2 luc.arnold@osupytheas.fr
NET UCAC-4
0017P KC2015 02 18.85421 04 19 23.70 +39 59 23.7 18.0 N K25
0017P KC2015 02 18.86341 04 19 24.17 +39 59 20.6 17.8 N K25
0017P KC2015 02 18.87262 04 19 24.62 +39 59 17.4 17.8 N K25
Instrument type Newton Instrument aperture (0=naked eye) 200 mm Instrument focale length 1100 mm Instrument focale/diameter 5.5 Filter(s) Clear 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 19 01h38m16s