12P/Pons-Brooks (Record n° 27337)
Orbital period : 71.00 years
NASA/JPL elements
IAU/MPC elements
On 2023 Aug 01 20h34 UT by Joel Nicolas
(Copyright Joel Nicolas)Coma Total magnitude (m1) 11.6 Aperture radius used for m1 1.28 ' Nuclear magnitude (m2) 16.1 m2 standard deviation 0.1 Aperture radius used for m2 7.0 " Coma diameter 2.56 ' Afrho 1006 cm Afrho error 11 cm r (dist/Sun) 3.766 AU d (dist/Earth) 3.478 AU Right ascension 17 58 53.83 h m s Declination +55 33 55.9 ° ' " MPC report COD A77
CON J. NICOLAS [nicolas.joel@wanadoo.fr]
OBS J. Nicolas
MEA J. Nicolas
TEL 0.41-m f/3.3 reflector + CCD
ACK MPCReport file updated 2023.08.02 09:12:59
AC2 nicolas.joel@wanadoo.fr
NET UCAC-4
0012P C2023 08 01.85681 17 58 53.83 +55 33 55.9 16.0 R A77
0012P C2023 08 01.86125 17 58 53.45 +55 33 55.7 16.1 R A77
0012P C2023 08 01.86679 17 58 52.93 +55 33 54.4 16.0 R A77
0012P C2023 08 01.87234 17 58 52.43 +55 33 52.8 16.1 R A77
0012P C2023 08 01.88507 17 58 51.24 +55 33 51.6 16.1 R A77
Instrumental configuration Config1 Instrument type Newton Instrument aperture (0=naked eye) 410 mm Instrument focale length 1353 mm Instrument focale/diameter 3.3 Filter(s) None Camera ST8XME Sensor CCD Sensor temperature -15 °C Binning 1x1 Exposure details 3*90s Air mass 1.02 Observatory MPC code A77 Location 04 Dauban Reference stars catalog UCAC-4
Used softwares Astrometrica Resulting picture sampling (scale) 1.4 "/pix Observation submission date 2023 Aug 02 07h14m43s Observation modification date 2023 Aug 04 14h54m38s