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17P/Holmes

Orbital period : 6.93 years

NASA/JPL elements
IAU/MPC elements


On 2007 Oct 29 20h21 UT by Jean-Yves Corsand


(Copyright Jean-Yves Corsand)

Coma Total magnitude (m1)1.7
Coma diameter6.6 '
Coma condensation degree (DC)7
Tail length0 °
r (dist/Sun) 2.455 AU
d (dist/Earth) 1.627 AU
Right ascension03 47 47.50 h m s
Declination+50 26 15.6 ° ' "
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 time5 s
Exposure details1x5s
Sky transparency (naked eye max mag)5.5
LocationRaph?le Monet 13280 France
Resulting picture sampling (scale)29.4 "/pix
Image processingZone choisie centr?e / r?duction 85% / taux compression 20 (80%)
Remarks or commentsLumi?res indirectes du village
Observation submission date2010 Dec 21 21h33m05s

(Record n° 1317)

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