17P/Holmes (Record n° 24100)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2021 Oct 08 02h48 UT by Yoann Degot Longhi
(Copyright Yoann Degot Longhi)Nuclear magnitude (m2) 18.5 m2 standard deviation 0.3 Aperture radius used for m2 5.74 " r (dist/Sun) 2.679 AU d (dist/Earth) 2.253 AU Right ascension 05 55 59.06 h m s Declination +45 55 19.3 ° ' " MPC report COD G20
OBS Y.Degot Longhi
MEA Y.Degot Longhi
TEL 0.30-m f/3.8 Reflector + CCD
ACK MPCReport file updated 2021.10.08 10:20:48
AC2 dynt@free.fr
NET UCAC-4
0017P KC2021 10 08.11640 05 55 59.06 +45 55 19.3 18.8 V G20
0017P KC2021 10 08.12411 05 55 59.31 +45 55 22.0 18.6 V G20
0017P KC2021 10 08.13228 05 55 59.84 +45 55 18.1 18.1 V G20
Instrument Newton 300 F3.8 Instrument type Newton Instrument aperture (0=naked eye) 300 mm Instrument focale length 1140 mm Instrument focale/diameter 3.8 Filter(s) None Camera QHY 294M Pro Sensor CCD Mount Big Mount MCMT TDM Exposure details 21x60s Observatory MPC code G20 Location 83 BRIGNOLES Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 0.82 "/pix URL for more information or pictures http://www.astrosurf.com/blogs/entry/434-08-oct-21-15p-_17p-_106p-_c2021-q5-_29p/ Observation submission date 2021 Oct 08 10h42m30s Observation modification date 2021 Oct 08 14h16m52s