21P/Giacobini-Zinner (Record n° 5461)
Orbital period : 6.54 years
NASA/JPL elements
IAU/MPC elements
On 2012 Jan 17 17h51 UT by Francois Kugel
(Copyright Francois Kugel)Nuclear magnitude (m2) 11.5 Aperture radius used for m2 35 " Tail length 0.06 ° Tail position angle
(PA) 34 ° r (dist/Sun) 1.093 AU d (dist/Earth) 1.892 AU Instrument type Camera lens Instrument aperture (0=naked eye) 60 mm Filter(s) None Camera ST8300 Sensor CCD Sensor temperature -20 °C Binning 1x1 Mount HEQ5pro Autoguide No Exposure total time 540 s Reference stars catalog GSC Used softwares PRISM Image resize factor 1 Resulting picture sampling (scale) 5.4 "/pix Observation submission date 2012 Jan 18 07h51m12s Observation modification date 2012 Feb 19 08h08m56s