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117P/Helin-Roman-Alu

Orbital period : 8.25 years

NASA/JPL elements
IAU/MPC elements


On 2014 Apr 18 08h10 UT by Thierry Noel


(Copyright Thierry Noel)

Coma Total magnitude (m1)15.5
Aperture radius used for m10.4 '
Nuclear magnitude (m2)16.1
m2 standard deviation0.1
Aperture radius used for m25.6 "
r (dist/Sun) 3.058 AU
d (dist/Earth) 3.016 AU
Right ascension20 36 09.85 h m s
Declination-25 17 59.7 ° ' "
MPC report
COD W96
CON ALAIN MAURY [amaury@spaceobs.com]
OBS A. Maury, T. Noel
MEA T. Noel
TEL 0.4-m f/8 Ritchey-Chretien + CCD
ACK MPCReport file updated 2014.04.18 15:23:20
AC2 thierrynoel1@laposte.net
NET UCAC-4
0117P         C2014 04 18.33995 20 36 09.85 -25 17 59.7          16.1 N      W96
0117P         C2014 04 18.35652 20 36 10.90 -25 17 58.9          16.0 N      W96
Instrument typeRitchey-Chretien
Instrument aperture (0=naked eye)400 mm
Instrument focale length3200 mm
Instrument focale/diameter8
CameraQHY9
SensorCCD
Sensor temperature-30 °C
Binning4x4
MountParamount
Exposure details25x1mn
Observatory MPC codeW96
LocationSan Pedro de Atacama, Chile
Reference stars catalogUCAC-4
Used softwaresASTROMETRICA
Resulting picture sampling (scale)1.38 "/pix
Observation submission date2014 Apr 18 15h29m24s
Observation modification date2014 May 21 21h34m29s

(Record n° 11632)

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