17P/Holmes (Record n° 23600)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2021 Jul 14 02h30 UT by Jean-Gabriel Bosch
(Copyright Jean-Gabriel Bosch)Nuclear magnitude (m2) 16.7 m2 standard deviation 0.2 Aperture radius used for m2 5.8 " r (dist/Sun) 2.351 AU d (dist/Earth) 2.859 AU Right ascension 03 47 19.57 h m s Declination +35 26 48.8 ° ' " 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 2021.07.14 13:42:41
AC2 JGBosch@free.fr
NET UCAC-4
0017P KC2021 07 14.10400 03 47 19.57 +35 26 48.8 16.8 R A77
0017P KC2021 07 14.11048 03 47 20.33 +35 26 52.4 16.5 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 Camera Atik 460ex Sensor CCD Sensor temperature -20 °C Binning 1x1 Mount Meade-MCMT-TDM Exposure details 15x60s Observatory MPC code A77 Location Obs. Dauban A77 Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 0.83 "/pix Observation submission date 2021 Jul 14 13h46m09s Observation modification date 2021 Jul 14 13h48m06s