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117P/Helin-Roman-Alu

Orbital period : 8.25 years

NASA/JPL elements
IAU/MPC elements


On 2021 Apr 23 20h19 UT by Jean-Gabriel Bosch


(Copyright Jean-Gabriel Bosch)

Nuclear magnitude (m2)14.4
m2 standard deviation0.1
Aperture radius used for m25.8 "
r (dist/Sun) 3.659 AU
d (dist/Earth) 2.685 AU
Right ascension13 15 26.74 h m s
Declination-00 14 24.4 ° ' "
MPC report
COD A77
CON J.-G. Bosch [JGBosch@free.fr]
OBS J.-G.Bosch
MEA J.-G. Bosch
TEL 0.4-m f/2.8 reflector + CCD
ACK MPCReport file updated 2021.04.24 17:46:49
AC2 JGBosch@free.fr
NET UCAC-4
0117P         C2021 04 23.84654 13 15 26.74 -00 14 24.4          14.6 R      A77
0117P         C2021 04 23.85149 13 15 26.56 -00 14 24.0          14.4 R      A77
0117P         C2021 04 23.85647 13 15 26.29 -00 14 22.6          14.3 R      A77
InstrumentNEWTON 400
Instrument typeNewton
Instrument aperture (0=naked eye)400 mm
Instrument focale length1120 mm
Instrument focale/diameter2.8
CameraAtik 460ex
SensorCCD
Sensor temperature-20 °C
Binning1x1
MountMeade-MCMT-TDM
Exposure details15x60s
Observatory MPC codeA77
LocationObs. Dauban A77
Reference stars catalogUCAC-4
Used softwaresASTROMETRICA
Resulting picture sampling (scale)0.83 "/pix
Observation submission date2021 Apr 24 17h50m33s
Observation modification date2021 Apr 24 18h34m27s

(Record n° 23285)

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