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21P/Giacobini-Zinner

Orbital period : 6.57 years

NASA/JPL elements
IAU/MPC elements


On 1985 Aug 21 00h25 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) 1.051 AU
d (dist/Earth) 0.500 AU
Right ascension03 59 01.00 h m s
Declination+50 25 39.0 ° ' "
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)6.2 "/pix
Observation submission date2010 Jun 18 10h12m09s
Observation modification date2011 Jun 29 11h38m23s

(Record n° 564)

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