Images 13.09.2026 · Istanbul University Observatory Solar Observations

Solar Images Sunday, 13 September 2026

‹ 12.09.2026 2026 17.09.2026 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 10:05 UT
Observer: Korhan YELKENCİ
g: 4
f: 11
R: 51
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1

Group 2 · HS_ – 4

Group 3 · AX_ – 5

Group 4 · HS_ – 1

RDS data file (.gzd)

[Gözlem]
Tarih=13.09.2026
Saat=10:05
Gözlemci=Korhan YELKENCİ
KontrolEden=
Durumaçısı=23.73
Enlemaçısı=7.23
Boylamaçısı=166.43
Boylamfark=1
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.4
Sırano=20568
AyRasatNo=13
RasatÖnceki=12.09.2026
RasatSonraki=17.09.2026

[Leke Grupları]
Grupsayısı=4:3:1
LekeSayısı=11:10:1
RölatifSayı=51:40:11
01=AX_ 01 +12.694 +55.888 222.318 -1.000 0000 0 +12.694 +55.888 +12.694 +55.888
02=HS_ 04 +02.981 +36.112 202.542 -1.000 0000 0 +04.374 +37.593 +01.589 +34.631
03=AX_ 05 +11.190 +19.178 185.608 -1.000 0000 0 +12.396 +19.903 +09.984 +18.454
04=HS_ 01 -11.680 +20.191 186.621 -1.000 0000 0 -10.384 +21.558 -12.976 +18.825

20260913.gzd

Chromosphere (H-α) FITS frames

No chromosphere observation for this day.

Coronado H-α animations from frame sequences

No Coronado observation for this day.