17P/Holmes (Record n° 12897)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2014 Nov 06 20h43 UT by Hubert Boussier
(Copyright Hubert Boussier)Nuclear magnitude (m2) 15.2 m2 standard deviation 0.1 Aperture radius used for m2 12 " r (dist/Sun) 2.642 AU d (dist/Earth) 1.845 AU Right ascension 05 04 20.46 h m s Declination +50 33 54.2 ° ' " MPC report COD K21
CON Hubert Boussier [astrild@orange.fr]
OBS H. Boussier
MEA H. Boussier
TEL 0.127-m f/10 Schimidt-Cassegrain f/7.3 focal reducer+CCD ST7XME
ACK MPCReport file updated 2014.11.06 22:09:54
AC2 astrild@orange.fr
NET UCAC-4
0017P KC2014 11 06.86323 05 04 20.46 +50 33 54.2 15.3 N K21
0017P KC2014 11 06.87268 05 04 19.95 +50 33 56.3 15.2 N K21
0017P KC2014 11 06.88178 05 04 19.43 +50 33 57.8 15.2 N K21
Instrument type Cassegrain Instrument aperture (0=naked eye) 127 mm Instrument focale length 1270 mm Instrument focale/diameter 10 Filter(s) L Camera SBIG ST7-XME Sensor CCD Sensor size 6.9x4.6 mm2 Sensor pixels number 765x510 Sensor temperature -15 °C Binning 1x1 Mount Sphinx Vixen Motorization Yes Autoguide Yes Exposure total time 2160 s Exposure details 12x180 Sky transparency (naked eye max mag) 3 Observatory MPC code K21 Location 84450 Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 2 "/pix Observation submission date 2014 Nov 06 23h18m51s Observation modification date 2014 Nov 06 23h31m27s