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117P/Helin-Roman-Alu

Orbital period : 8.25 years

NASA/JPL elements
IAU/MPC elements


On 2020 Feb 04 03h43 UT by Pierre Traverse


(Copyright Pierre Traverse)

Nuclear magnitude (m2)18.7
m2 standard deviation0.1
Aperture radius used for m27 "
r (dist/Sun) 4.583 AU
d (dist/Earth) 3.663 AU
Right ascension10 45 53.50 h m s
Declination+19 37 56.9 ° ' "
MPC report
COD X03
CON P. Traverse [pierre.traverse@orange.fr]
OBS J. L. Virlichie, P. Traverse
MEA P. Traverse
TEL 0.35-m f/5 Newtonian reflector + CCD
ACK MPCReport file updated 2020.02.04 20:49:28
AC2 pierre.traverse@orange.fr
NET UCAC-4
0117P        KC2020 02 04.15496 10 45 53.50 +19 37 56.9          18.5 V      X03
0117P        KC2020 02 04.17013 10 45 53.05 +19 38 00.7          18.7 V      X03
0117P        KC2020 02 04.18658 10 45 52.50 +19 38 04.9          18.7 V      X03
0117P        KC2020 02 04.20429 10 45 51.96 +19 38 09.1          18.7 V      X03
0117P        KC2020 02 04.22036 10 45 51.44 +19 38 13.2          18.8 V      X03
0117P        KC2020 02 04.23739 10 45 50.90 +19 38 17.4          18.7 V      X03
0117P        KC2020 02 04.25437 10 45 50.39 +19 38 21.6          18.9 V      X03
Instrumental configurationConfig1
InstrumentONTC 355mm
Instrument typeNewton
Instrument aperture (0=naked eye)350 mm
Instrument focale length1750 mm
Instrument focale/diameter5
Filter(s)L
CameraMoravian G3 16200
SensorCCD
Sensor size27x21.6 mm2
Sensor pixels number4700x3600
Sensor temperature-20 °C
Binning2x2
MountSW EQ8
MotorizationYes
AutoguideYes
Exposure details74x2mn
Observatory MPC codeX03
Reference stars catalogUCAC-4
Used softwaresASTROMETRICA
Resulting picture sampling (scale)1.4 "/pix
Remarks or commentsécart de position par rapport à la valeur du MPC de ce jour de 39 arcsec (O-C delta RA -36arcsec, DEC 15arcsec).
Observation submission date2020 Feb 04 22h53m10s
Observation modification date2020 Feb 04 22h58m55s

(Record n° 21564)

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