Images 15.10.2025 · Istanbul University Observatory Solar Observations

Solar Images Wednesday, 15 October 2025

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3222 px)

Time: 12:15 UT
Observer: Burçin TANIK
g: 4
f: 69
R: 109
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · EKC – 37

Group 2 · EHI – 26

Group 3 · HS_ – 1

Group 4 · CHO – 5

RDS data file (.gzd)

[Gözlem]
Tarih=15.10.2025
Saat=12:15
Gözlemci=Burçin TANIK
KontrolEden=Ergün EGE
Durumaçısı=26.15
Enlemaçısı=5.84
Boylamaçısı=240.5
Boylamfark=0
GKalite=3
GDurum=B.A , Y.B
Kuzeyaçısı=-0.4
Sırano=20366
AyRasatNo=9
RasatÖnceki=13.10.2025
RasatSonraki=17.10.2025

[Leke Grupları]
Grupsayısı=4:3:1
LekeSayısı=69:64:5
RölatifSayı=109:94:15
01=EKC 37 +24.745 +47.255 287.755 22.166 0000 0 +27.805 +54.339 +21.685 +40.171 +23.518 +49.828 +26.601 +42.230
02=EHI 26 +08.440 +18.665 259.165 +0.000 0000 0 +10.398 +25.488 +06.482 +11.842 +08.440 +25.288 +08.440 +12.420
03=HS_ 01 +10.757 -67.304 173.196 +0.000 0000 0 +11.393 -66.238 +10.121 -68.369 +10.757 -66.739 +10.757 -67.869
04=CHO 05 -12.723 -34.637 205.863 23.519 0000 0 -11.227 -32.230 -14.220 -37.250 -12.148 -33.173 -13.520 -36.328

20251015.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.