117P/Helin-Roman-Alu (Record n° 23362)
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 deviation 0.1 Aperture radius used for m2 5.8 " Tail length 0.23 ° r (dist/Sun) 3.619 AU d (dist/Earth) 2.751 AU Right ascension 13 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
Instrument NEWTON Instrument type Newton Instrument aperture (0=naked eye) 400 mm Instrument focale length 1120 mm Instrument focale/diameter 2.8 Camera Atik 460ex Sensor CCD Sensor temperature -20 °C Binning 1x1 Mount Meade-MCMT-TDM Exposure details 18x1mn Observatory MPC code A77 Location Obs. Dauban A77 Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 0.83 "/pix Observation submission date 2021 May 12 13h01m41s Observation modification date 2021 May 12 14h52m21s