17P/Holmes (Record n° 24339)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2021 Nov 08 22h20 UT by Jean-Gabriel Bosch
(Copyright Jean-Gabriel Bosch)Nuclear magnitude (m2) 18 m2 standard deviation 0.3 Aperture radius used for m2 5.8 " r (dist/Sun) 2.809 AU d (dist/Earth) 2.058 AU Right ascension 05 54 32.69 h m s Declination +48 43 12.1 ° ' " 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 2021.11.09 13:08:30
AC2 JGBosch@free.fr
NET UCAC-4
0017P C2021 11 08.93021 05 54 32.69 +48 43 12.1 18.1 R A77
0017P C2021 11 08.93604 05 54 32.42 +48 43 12.3 17.7 R A77
0017P C2021 11 08.94185 05 54 32.25 +48 43 14.3 18.3 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 Exposure details 15x60s Observatory MPC code A77 Location Dauban A77 Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 0.83 "/pix Observation submission date 2021 Nov 09 13h47m27s Observation modification date 2021 Nov 09 13h53m03s