12P/Pons-Brooks (Record n° 28504)
Orbital period : 71.00 years
NASA/JPL elements
IAU/MPC elements
On 2023 Nov 15 21h36 UT by Nicolas BiverComa Total magnitude (m1) 9.6 Coma diameter 0.5 ' Coma condensation degree
(DC) 7 ICQ full report 12 2023 11 15.90 B 9.6 TK 40.7L 4 135 0.5 7 ICQ XX BIV
Instrument type Newton Instrument aperture (0=naked eye) 407 mm Instrument focale length 1628 mm Instrument focale/diameter 4 Sensor Eye Power magnification 135 X Magnitude visual estimation method
(ICQ code) B Reference stars catalog TYCHO2 Observation submission date 2024 May 24 17h10m53s