17P/Holmes (Record n° 23780)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2021 Aug 14 00h05 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 16.2 m2 standard deviation 0.1 Aperture radius used for m2 6.5 " r (dist/Sun) 2.462 AU d (dist/Earth) 2.674 AU Right ascension 04 46 28.07 h m s Declination +39 55 19.1 ° ' " MPC report COD C10
CON J.-F. Soulier [jean-francois.soulier2@wanadoo.fr]
OBS J.-F. Soulier
MEA J.-F. Soulier
TEL 0.30-m f/3.8 Newtonian reflector + CCD
ACK C10 2021.08.14 07:44:42
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-4
0017P KC2021 08 14.00315 04 46 28.07 +39 55 19.1 16.1 R C10
0017P KC2021 08 14.01456 04 46 29.10 +39 55 24.7 16.3 R C10
Instrument type Newton Instrument aperture (0=naked eye) 300 mm Instrument focale length 1140 mm Instrument focale/diameter 3.8 Filter(s) None Camera ST8-XME Sensor CCD Sensor temperature -10 °C Binning 1x1 Mount F60a AXIS INSTRUMENTS Autoguide No Exposure details 15 x 60s Observatory MPC code C10 Location Seine et Marne (77) Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.62 "/pix Observation submission date 2021 Aug 14 07h46m46s Observation modification date 2021 Aug 14 14h19m21s