SOLAR OBSERVATIONS

High-resolution scan (3226 px)

Time

09:45 UT

Observer

Başar COŞKUNOĞLU

g

2

f

5

R

25

Seeing

3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1 Group 2 · BXO – 4

[Gözlem]
Tarih=16.04.2021
Saat=09:45
Gözlemci=Başar COŞKUNOĞLU
KontrolEden=Korhan YELKENCİ
Durumaçısı=-25.91
Enlemaçısı=-5.5
Boylamaçısı=331.25
Boylamfark=1
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.4
Sırano=19164
AyRasatNo=10
RasatÖnceki=15.04.2021
RasatSonraki=20.04.2021

[Leke Grupları]
Grupsayısı=2:0:2
LekeSayısı=5:0:5
RölatifSayı=25:0:25
01=AX_ 01 -18.946 -64.540 266.710 -1.000 0000 0 -18.946 -64.540 -18.946 -64.540
02=BXO 04 -22.141 -68.957 262.293 30.755 0000 0 -20.568 -66.645 -23.715 -71.268 -21.105 -67.420 -23.233 -70.999

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 →

2021/20210416_bc · BC · 6 frames · 128.6 MB · 10:01:31–10:05:36 UT