117P/Helin-Roman-Alu (Record n° 23331)
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 deviation 0.1 Aperture radius used for m2 5.8 " Tail length 0.14 ° r (dist/Sun) 3.637 AU d (dist/Earth) 2.711 AU Right ascension 13 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 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 10x120s Observatory MPC code A77 Location Dauban Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 0.83 "/pix Observation submission date 2021 May 05 11h29m19s Observation modification date 2021 May 05 12h59m21s