Sunspots 22 December 2025

The sun is still very active.

Date:  22 December 2025

FOV:  approximately 54' × 36'; the angular size of the sun is about 30'

Telescope:  Orion 127mm Maksutov-Cassegrain Telescope (1540mm, f/12.1)

Guiding:  tracking only

Computer:  ASIair pro Raspberry Pi

Mount:  ZWO AM5 mount

Camera:  ZWO ASI071MC Pro cooled (-10°C) Color CMOS with gain 90

Filter:  Thousand Oaks full aperture Solarlite safe solar filter

Stacking:  ten 5ms frames using PIPP

Total Time:  0.050 seconds

Processing:  Pixinsight — Debayer, BlurXT, GHS, DynCrop/Scale.

Location:  My driveway in DeWitt, NY