17P/Holmes (Record n° 12480)
Orbital period : 6.93 years
NASA/JPL elements
IAU/MPC elements
On 2014 Sep 05 01h02 UT by Jean-Francois Soulier
(Copyright Jean-Francois Soulier)Nuclear magnitude (m2) 16.8 m2 standard deviation 0.1 Aperture radius used for m2 8.1 " Tail length 0.2 ° r (dist/Sun) 2.397 AU d (dist/Earth) 2.226 AU Right ascension 04 44 00.71 h m s Declination +42 55 06.5 ° ' " MPC report COD C10
CON JEAN-FRANCOIS SOULIER [jean-francois.soulier2@wanadoo.fr]
OBS J.-F. Soulier
MEA J.-F. Soulier
TEL 0.30-m f/3.8 Newtonian reflector + CCD
ACK MPCReport file updated 2014.09.05
AC2 jean-francois.soulier2@wanadoo.fr
NET UCAC-4
0017P C2014 09 05.04294 04 44 00.71 +42 55 06.5 16.9 N C10
0017P C2014 09 05.05788 04 44 01.90 +42 55 15.0 16.6 N C10
0017P C2014 09 05.07437 04 44 03.19 +42 55 24.2 16.8 N C10
Instrument type Newton Instrument aperture (0=naked eye) 300 mm Instrument focale length 1140 mm Instrument focale/diameter 3.8 Camera ST8 XME Sensor CCD Sensor size 13.8 x 9.2 mm2 Sensor pixels number 1530 x 1020 Sensor temperature -17 °C Binning 1x1 Mount F60a Autoguide Yes Exposure details 12 x 120s Seeing 4 Moon elongation 141 ° Air mass 1.45 Observatory MPC code C10 Location Seine et Marne Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.62 "/pix Observation submission date 2014 Sep 05 04h26m16s Observation modification date 2014 Sep 05 04h27m55s