17P/Holmes (Record n° 24406)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2021 Nov 18 19h39 UT by Jean-Gabriel BoschNuclear magnitude (m2) 18.3 m2 standard deviation 0.1 Aperture radius used for m2 5.8 " r (dist/Sun) 2.851 AU d (dist/Earth) 2.025 AU Right ascension 05 46 17.86 h m s Declination +49 12 04.0 ° ' " MPC report COD A77
CON J.-G. Bosch [JGBosch@free.fr]
OBS J.-G.Bosch
MEA J.-G. Bosch
TEL 0.4-m f/2.8 reflector + CCD
ACK MPCReport file updated 2021.11.19 09:34:12
AC2 JGBosch@free.fr
NET UCAC-4
0017P KC2021 11 18.81867 05 46 17.86 +49 12 04.0 18.4 R A77
0017P KC2021 11 18.82839 05 46 17.46 +49 12 05.3 18.2 R A77
Instrument NEWTON 400 Instrument type Newton Instrument aperture (0=naked eye) 400 mm Instrument focale length 1120 mm Instrument focale/diameter 2.8 Filter(s) None Camera Atik 460ex Sensor CCD Sensor temperature -10 °C Binning 1x1 Mount Meade-MCMT-TDM Observatory MPC code A77 Location Dauban A77 Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Observation submission date 2021 Nov 19 09h37m40s