SOLAR OBSERVATIONS

High-resolution scan (3224 px)

Time

10:15 UT

Observer

Başar COŞKUNOĞLU

g

2

f

17

R

37

Seeing

3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 4 Group 2 · DSI – 13

[Gözlem]
Tarih=25.08.2021
Saat=10:15
Gözlemci=Başar COŞKUNOĞLU
KontrolEden=Talar YONTAN
Durumaçısı=19.31
Enlemaçısı=7.04
Boylamaçısı=38.27
Boylamfark=1
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.9
Sırano=19257
AyRasatNo=25
RasatÖnceki=24.08.2021
RasatSonraki=26.08.2021

[Leke Grupları]
Grupsayısı=2:1:1
LekeSayısı=17:4:13
RölatifSayı=37:14:23
01=HS_ 04 +19.703 -28.286 009.984 -1.000 0000 0 +20.992 -26.759 +18.414 -29.813
02=DSI 13 -27.482 -36.616 001.654 38.900 0000 0 -25.234 -33.665 -29.729 -39.568 -26.158 -34.458 -29.410 -38.360

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 →

2021/20210825_bc · BC · 6 frames · 128.6 MB · 10:33:48–10:37:38 UT