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21P/Giacobini-Zinner

Orbital period : 6.57 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 diameter2.1 '
Coma condensation degree (DC)5
Tail length0 °
r (dist/Sun) 1.054 AU
d (dist/Earth) 0.504 AU
Right ascension03 58 42.50 h m s
Declination+50 28 01.0 ° ' "
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)8.8 "/pix
Observation submission date2010 Jun 18 10h05m30s

(Record n° 563)

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