21P/Giacobini-Zinner (Record n° 19472)
Orbital period : 6.54 years
NASA/JPL elements
IAU/MPC elements
On 2018 Aug 11 22h39 UT by Lionel Rousselot
(Copyright Lionel Rousselot)Nuclear magnitude (m2) 11.6 Aperture radius used for m2 8.7 " r (dist/Sun) 1.101 AU d (dist/Earth) 0.520 AU Right ascension 01 53 45 10 h m s Declination +66 03 07.3 ° ' " Instrument Skywatcher 254/1200 Instrument type Newton Instrument aperture (0=naked eye) 254 mm Instrument focale length 1080 mm Instrument focale/diameter 4.25 Filter(s) None Camera ZWO 1600 monochrome Sensor CCD Sensor temperature -20 °C Binning 2x2 Mount AZ eq6 Motorization Yes Autoguide Yes Exposure total time 400 s Exposure details 20*20s Seeing 4 Moon phase 180 ° Location vierzon france Reference stars catalog UCAC-4 Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.45 "/pix Observation submission date 2018 Aug 12 22h49m05s