Images 12.10.2025 · Istanbul University Observatory Solar Observations

Solar Images Sunday, 12 October 2025

‹ 10.10.2025 2025 13.10.2025 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 08:30 UT
Observer: Korhan YELKENCİ
g: 4
f: 48
R: 88
Seeing: 2 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DAI – 19

Group 2 · EAI – 23

Group 3 · AX_ – 4

Group 4 · AX_ – 2

RDS data file (.gzd)

[Gözlem]
Tarih=12.10.2025
Saat=08:30
Gözlemci=Korhan YELKENCİ
KontrolEden=Süleyman FİŞEK
Durumaçısı=26.24
Enlemaçısı=6.06
Boylamaçısı=282.14
Boylamfark=2
GKalite=2
GDurum=B.A
Kuzeyaçısı=-0.5
Sırano=20364
AyRasatNo=7
RasatÖnceki=10.10.2025
RasatSonraki=13.10.2025

[Leke Grupları]
Grupsayısı=4:2:2
LekeSayısı=48:42:6
RölatifSayı=88:62:26
01=DAI 19 +24.576 +03.686 285.826 42.314 0000 0 +27.676 +07.990 +21.475 +00.273 +27.476 +06.899 +21.675 +00.492
02=EAI 23 +07.869 -27.501 254.639 13.234 0000 0 +09.649 -20.756 +06.890 -34.246 +09.422 -21.133 +06.413 -34.460
03=AX_ 04 -09.830 +38.345 320.485 +0.000 0000 0 -09.344 +39.590 -10.317 +37.631 -09.830 +38.825 -09.830 +37.866
04=AX_ 02 -16.286 +00.719 282.859 +0.000 0000 0 -15.874 +01.770 -16.698 +00.360 -16.286 +00.924 -16.286 +00.514

20251012.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.