12P/Pons-Brooks (Record n° 27629)
Orbital period : 71.00 years
NASA/JPL elements
IAU/MPC elements
On 2023 Sep 23 19h24 UT by Patrick Ditz
(Copyright Patrick Ditz)Nuclear magnitude (m2) 16.2 m2 standard deviation 0.1 Aperture radius used for m2 5.6 " Coma diameter 6.4 ' r (dist/Sun) 3.189 AU d (dist/Earth) 3.146 AU Right ascension 17 18 40.58 h m s Declination +48 10 05.6 ° ' " MPC report COD K97
CON P.Ditz [patrick.ditz@wanadoo.fr]
OBS P.Ditz
MEA P.Ditz
TEL 0.54-m f/3.75 reflector + CCD
ACK MPCReport file updated 2023.09.24 15:01:46
AC2 patrick.ditz@wanadoo.fr
NET PPMXL
0012P C2023 09 23.80817 17 18 40.58 +48 10 05.6 16.1 V K97
0012P C2023 09 23.81356 17 18 40.60 +48 10 02.1 16.2 V K97
0012P C2023 09 23.82293 17 18 40.64 +48 09 55.9 16.2 V K97
0012P C2023 09 23.83214 17 18 40.68 +48 09 49.7 16.1 V K97
Instrumental configuration Config1 Instrument T540 Instrument type Newton Instrument aperture (0=naked eye) 540 mm Instrument focale length 2025 mm Instrument focale/diameter 3.75 Filter(s) L Camera Atik 460EX Sensor CCD Sensor size 10x12.5 mm2 Sensor pixels number 2749x2199 Sensor temperature -10 °C Binning 2x2 Mount VMA300 Exposure total time 1560 s Exposure details 26x1mn Moon phase 110 ° Moon elongation 79 ° Air mass 1.1 Observatory MPC code K97 Location Freconrupt Reference stars catalog PPMXL
Used softwares Astrometrica Resulting picture sampling (scale) 0.92 "/pix Image processing Prism11 & Gimp Remarks or comments Deux comas sont présentes: La plus étendue de diamètre 6'4 et la plus concise de diamètre 1'1 Observation submission date 2023 Sep 25 10h47m03s Observation modification date 2023 Sep 25 10h51m49s