Images 12.09.2025 · Istanbul University Observatory Solar Observations

Solar Images Friday, 12 September 2025

‹ 11.09.2025 2025 14.09.2025 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3231 px)

Time: 07:40 UT
Observer: Süleyman FİŞEK
g: 4
f: 15
R: 55
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1

Group 2 · DSC – 5

Group 3 · HH_ – 1

Group 4 · ESO – 8

RDS data file (.gzd)

[Gözlem]
Tarih=12.09.2025
Saat=07:40
Gözlemci=Süleyman FİŞEK
KontrolEden=Korhan YELKENCİ
Durumaçısı=23.58
Enlemaçısı=7.23
Boylamaçısı=318.52
Boylamfark=2
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.6
Sırano=20344
AyRasatNo=10
RasatÖnceki=11.09.2025
RasatSonraki=14.09.2025

[Leke Grupları]
Grupsayısı=4:2:2
LekeSayısı=15:6:9
RölatifSayı=55:26:29
01=AX_ 01 +21.699 -17.718 300.802 -1.000 0000 0 +21.699 -17.718 +21.699 -17.718
02=DSC 05 +10.727 -72.190 246.330 +0.000 0000 0 +12.967 -68.943 +08.487 -75.436 +10.727 -69.143 +10.727 -75.236
03=HH_ 01 -13.645 +53.466 011.986 +0.000 0000 0 -12.400 +55.750 -14.889 +51.858 -13.645 +54.912 -13.645 +52.200
04=ESO 08 -13.876 +42.554 001.740 +0.000 0000 0 -12.489 +48.140 -15.264 +37.950 -13.876 +47.814 -13.876 +37.295

20250912.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.