21P/Giacobini-Zinner (Record n° 563)
Orbital period : 6.54 years
NASA/JPL elements
IAU/MPC elements
On 1985 Aug 20 23h10 UT by Jean-Yves Corsand
(Copyright Jean-Yves Corsand)Coma Total magnitude (m1) 8.4 Coma diameter 2.1 ' Coma condensation degree
(DC) 5 Tail length 0 ° r (dist/Sun) 1.054 AU d (dist/Earth) 0.504 AU Right ascension 03 58 42.50 h m s Declination +50 28 01.0 ° ' " Instrument TE 114 Instrument type Newton Instrument aperture (0=naked eye) 114 mm Instrument focale length 900 mm Instrument focale/diameter 7.89 Sensor Eye Power magnification 45 X Magnitude visual estimation method
(ICQ code) I Sky transparency (naked eye max mag) 5 Location Arles 13200 France Resulting picture sampling (scale) 8.8 "/pix Observation submission date 2010 Jun 18 10h05m30s