12P/Pons-Brooks (Record n° 27978)
Orbital period : 71.00 years
NASA/JPL elements
IAU/MPC elements
On 2023 Dec 16 18h24 UT by Patrick Ditz
(Copyright Patrick Ditz)Nuclear magnitude (m2) 13.8 m2 standard deviation 0.0 Aperture radius used for m2 5.6 " Coma diameter 12.5 ' Tail length 0.21 ° Tail position angle
(PA) 25 ° r (dist/Sun) 2.203 AU d (dist/Earth) 2.442 AU Right ascension 18 58 22.15 h m s Declination +37 54 04.7 ° ' " 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 2023.12.17 10:34:29
AC2 patrick.ditz@wanadoo.fr
NET PPMXL
0012P C2023 12 16.76643 18 58 22.15 +37 54 04.7 13.8 V K97
0012P C2023 12 16.77193 18 58 22.88 +37 54 04.3 13.8 V K97
0012P C2023 12 16.77584 18 58 23.44 +37 54 03.6 13.8 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 760 s Exposure details 38x20s Moon phase 148 ° Moon elongation 67 ° Air mass 2.0 Observatory MPC code K97 Location Freconrupt Reference stars catalog PPMXL
Used softwares Astrometrica Image resize factor 0.73 Resulting picture sampling (scale) 0.92 "/pix Image processing Prism11 & Gimp Remarks or comments Détail à proximité du noyau dans vignette en haut à droite
Queue cométaire visible de longueur > 13' Observation submission date 2023 Dec 18 09h03m34s Observation modification date 2023 Dec 18 09h12m42s