Solar Images Wednesday, 23 December 2020
‹ 22.12.2020 2020 24.12.2020 ›Photosphere sunspot drawing and RDS evaluation
No photosphere drawing for this day.
Chromosphere (H-α) FITS frames
The images are made automatically with a fixed, gentle rule: uneven illumination and most of the limb darkening are removed, and the brightness is shown on a linear scale (no sharpening); prominences get their own scale outside the limb. Frames are ordered by sharpness (seeing); frames without the Sun (darks, bias) come last. Method →
2020/20201223_hc · HC · 1 frames · 21.4 MB · 09:47:25 UT
Coronado H-α animations from frame sequences
No Coronado observation for this day.