Home

117P/Helin-Roman-Alu

Orbital period : 8.38 years

NASA/JPL elements
IAU/MPC elements


On 2021 May 03 21h52 UT by Jean-Gabriel Bosch


(Copyright Jean-Gabriel Bosch)

Nuclear magnitude (m2)15.8
m2 standard deviation0.1
Aperture radius used for m25.8 "
Tail length0.14 °
r (dist/Sun) 3.637 AU
d (dist/Earth) 2.711 AU
Right ascension13 09 19.76 h m s
Declination+00 00 04.4 ° ' "
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 2021.05.05 11:24:12
AC2 JGBosch@free.fr
NET UCAC-4
0117P         C2021 05 03.91077 13 09 19.76 +00 00 04.4          15.7 R      A77
0117P         C2021 05 03.91684 13 09 19.55 +00 00 05.1          15.8 R      A77
0117P         C2021 05 03.92437 13 09 19.29 +00 00 05.4          15.9 R      A77
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 details10x120s
Observatory MPC codeA77
LocationDauban
Reference stars catalogUCAC-4
Used softwaresASTROMETRICA
Resulting picture sampling (scale)0.83 "/pix
Observation submission date2021 May 05 11h29m19s
Observation modification date2021 May 05 12h59m21s

(Record n° 23331)

Home