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17P/Holmes

Orbital period : 6.93 years

NASA/JPL elements
IAU/MPC elements


On 2007 Nov 08 18h50 UT by Jean-Yves Corsand


(Copyright Jean-Yves Corsand)

Coma Total magnitude (m1)4.3
Coma diameter24 '
Coma condensation degree (DC)7
Tail length0 °
r (dist/Sun) 2.494 AU
d (dist/Earth) 1.621 AU
Right ascension03 36 33.92 h m s
Declination+50 37 24.2 ° ' "
Instrument typeCamera lens
Instrument aperture (0=naked eye)2.8 mm
Instrument focale length23.7 mm
Instrument focale/diameter8.46
CameraSony Dsc W7
SensorDC
Sensor size45.7x25.4 mm2
Sensor pixels number1200x900
Mountfixe
MotorizationNo
Exposure total time15 s
Exposure details1x15s
Sky transparency (naked eye max mag)5.5
LocationRaph?le Monet 13280 France
Resulting picture sampling (scale)70.4 "/pix
Image processingNum?rique: Zone choisie centr?e / r?duction 85% / taux compression 20 (80%)
Remarks or commentsLumi?res indirectes du village
Observation submission date2011 Jan 04 20h49m29s
Observation modification date2011 Jan 04 20h55m20s

(Record n° 1611)

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