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117P/Helin-Roman-Alu

Orbital period : 8.25 years

NASA/JPL elements
IAU/MPC elements


On 2021 May 11 21h30 UT by Jean-Gabriel Bosch


(Copyright Jean-Gabriel Bosch)

Nuclear magnitude (m2)14.8
m2 standard deviation0.1
Aperture radius used for m25.8 "
Tail length0.23 °
r (dist/Sun) 3.619 AU
d (dist/Earth) 2.751 AU
Right ascension13 05 14.04 h m s
Declination+00 04 25.0 ° ' "
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 2021.05.12 12:58:20
AC2 JGBosch@free.fr
NET UCAC-4
0117P         C2021 05 11.89601 13 05 14.04 +00 04 25.0          14.9 R      A77
0117P         C2021 05 11.90330 13 05 13.82 +00 04 25.3          14.7 R      A77
0117P         C2021 05 11.91060 13 05 13.61 +00 04 25.7          14.8 R      A77
InstrumentNEWTON
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 details18x1mn
Observatory MPC codeA77
LocationObs. Dauban A77
Reference stars catalogUCAC-4
Used softwaresASTROMETRICA
Resulting picture sampling (scale)0.83 "/pix
Observation submission date2021 May 12 13h01m41s
Observation modification date2021 May 12 14h52m21s

(Record n° 23362)

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