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21P/Giacobini-Zinner

Orbital period : 6.57 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 diameter1.2 '
Coma condensation degree (DC)2
Tail length0 °
r (dist/Sun) 1.048 AU
d (dist/Earth) 0.496 AU
Right ascension04 09 18.00 h m s
Declination+49 21 24 ° ' "
InstrumentTE 114
Instrument typeNewton
Instrument aperture (0=naked eye)114 mm
Instrument focale length900 mm
Instrument focale/diameter7.89
SensorEye
Power magnification45 X
Magnitude visual estimation method (ICQ code)I
Sky transparency (naked eye max mag)5
LocationArles 13200 France
Resulting picture sampling (scale)6.8 "/pix
Remarks or comments2 lampes sodium moins de 20 m masques par une couverture
Observation submission date2010 Jun 21 10h20m49s

(Record n° 570)

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