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117P/Helin-Roman-Alu

Orbital period : 8.38 years

NASA/JPL elements
IAU/MPC elements


On 2025 Dec 25 22h23 UT by Jonathan Vilhem


(Copyright Jonathan Vilhem)

Nuclear magnitude (m2)19.7
r (dist/Sun) 5.060 AU
d (dist/Earth) 4.095 AU
Right ascension05 21 30.71 h m s
Declination+27 43 26.1 ° ' "
Instrumental configurationConfig5
Instrument250/1000 QUATTRO
Instrument typeNewton
Instrument aperture (0=naked eye)250 mm
Instrument focale length1000 mm
Instrument focale/diameter4
Filter(s)None
CameraASI 533MM PRO
SensorCMOS
Sensor size11.31X11.31 mm2
Sensor pixels number3008X3008
Sensor temperature-10 °C
Binning4x4
MountEQ6R PRO
MotorizationYes
AutoguideNo
Exposure total time3500 s
Exposure details50X70SEC
Seeing3
Observatory MPC code247
LocationSaint Jean Rohrbach Moselle France
Reference stars catalogAPASS
Used softwaresTYCHO
Remarks or commentsLEGER VENT
Observation submission date2025 Dec 26 11h14m38s

(Record n° 30691)

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