17P/Holmes (Record n° 23767)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2021 Aug 11 00h43 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 16.3 m2 standard deviation 0.1 Aperture radius used for m2 6 " r (dist/Sun) 2.450 AU d (dist/Earth) 2.694 AU Right ascension 04 41 09.14 h m s Declination +39 32 37.9 ° ' " MPC report COD L27
CON J.-F. Soulier [jean-francois.soulier2@wanadoo.fr]
OBS J.-F. Soulier
MEA J.-F. Soulier
TEL 0.25-m f/3.5 Newtonian reflector + CCD
ACK L27 2021.08.11 07:56:06
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-4
0017P KC2021 08 11.02995 04 41 09.14 +39 32 37.9 16.4 R L27
0017P KC2021 08 11.03936 04 41 10.19 +39 32 42.1 16.3 R L27
0017P KC2021 08 11.04875 04 41 11.17 +39 32 46.6 16.3 R L27
Instrument type Newton Instrument aperture (0=naked eye) 250 mm Instrument focale length 875 mm Instrument focale/diameter 3.5 Filter(s) None Camera ATIK 414-EX- Sensor CCD Sensor temperature -10 °C Binning 1x1 Mount PARAMOUNT-ME- Autoguide No Exposure details 60 x 30s Observatory MPC code L27 Location Dauban (04) Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.49 "/pix Observation submission date 2021 Aug 11 07h58m46s Observation modification date 2021 Aug 11 08h07m59s