17P/Holmes (Record n° 24051)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2021 Sep 30 03h17 UT by Jean-Gabriel Bosch
(Copyright Jean-Gabriel Bosch)Nuclear magnitude (m2) 17.8 m2 standard deviation 0.1 Aperture radius used for m2 5.8 " r (dist/Sun) 2.646 AU d (dist/Earth) 2.315 AU Right ascension 05 50 33.85 h m s Declination +45 06 50.8 ° ' " 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 2021.09.30 14:22:12
AC2 JGBosch@free.fr
NET UCAC-4
0017P C2021 09 30.13671 05 50 33.85 +45 06 50.8 17.8 R A77
0017P C2021 09 30.14401 05 50 34.23 +45 06 52.6 17.9 R A77
0017P C2021 09 30.14978 05 50 34.26 +45 06 55.9 17.6 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 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 Sep 30 14h25m35s Observation modification date 2021 Sep 30 15h42m58s