Still learning here but more consistent now with reprocessed data. Using AAVSO chart X27541GQ, comparison star 127, V mag. 12.701.

250mm f4.8 Newtonian
QHY168C @-15°C // Green channel only

29-12-2021 21:55 UT // TG mag. 12.48 // 540s
31-12-2021 23:31 UT // TG mag. 12.90 // 90s
01-01-2022 21:58 UT // TG mag. 13.29 // 90s
03-01-2022 21:58 UT // TG mag. 13.68 // 150s
04-01-2022 20:42 UT // TG mag. 13.88 // 150s

AAVSO X27541GQ data