21P/Giacobini-Zinner (Record n° 570)
Orbital period : 6.54 years
NASA/JPL elements
IAU/MPC elements
On 1985 Aug 22 02h45 UT by Jean-Yves Corsand
(Copyright Jean-Yves Corsand)Coma Total magnitude (m1) 8.3 Coma diameter 1.2 ' Coma condensation degree
(DC) 2 Tail length 0 ° r (dist/Sun) 1.048 AU d (dist/Earth) 0.496 AU Right ascension 04 09 18.00 h m s Declination +49 21 24 ° ' " 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) 6.8 "/pix Remarks or comments 2 lampes ? sodium ? moins de 20 m masqu?es par une couverture Observation submission date 2010 Jun 21 10h20m49s