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171P/Spahr

Orbital period : 6.70 years

NASA/JPL elements
IAU/MPC elements


On 2011 Dec 26 19h05 UT by Jean-Francois Soulier


(Copyright Jean-Francois Soulier)

Nuclear magnitude (m2)20
m2 standard deviation0.2
Aperture radius used for m28 "
r (dist/Sun) 2.093 AU
d (dist/Earth) 1.872 AU
Right ascension00 47 06.85 h m s
Declination-20 09 20.4 ° ' "
MPC report
COD C10
CON JEAN-FRANCOIS SOULIER [jean-francois.soulier2@wanadoo.fr]
OBS J.F. Soulier
MEA J.F. Soulier
TEL 0.255-m f/3.6 Newtonian reflector + CCD
ACK MPCReport file updated 2011.12.26
AC2 jean-francois.soulier2@wanadoo.fr
NET USNO-B1.0
0171P        KC2011 12 26.79500 00 47 06.85 -20 09 20.4          20.2 N      C10
0171P        KC2011 12 26.80500 00 47 07.40 -20 09 09.6          19.9 N      C10
Instrument typeNewton
Instrument aperture (0=naked eye)254 mm
Instrument focale length900 mm
Instrument focale/diameter3.6
CameraST7-XMEd
SensorCCD
Sensor size6.9 x 4.6 mm2
Sensor pixels number765 x 510
Sensor temperature-25 °C
Binning1x1
MountPERL-VIXEN
AutoguideYes
Exposure total time2520 s
Exposure details21 x 120s
Seeing3
Moon elongation66 °
Air mass2.77
Observatory MPC codeC10
Location77
Reference stars catalogUSNO-B1.0
Used softwaresASTROMETRICA
Resulting picture sampling (scale)2.04 "/pix
Image processingPRISMV8 DDP FC GIMP
Observation submission date2011 Dec 27 15h49m13s
Observation modification date2011 Dec 28 21h23m18s

(Record n° 5428)

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