Images 23.10.2026 · Istanbul University Observatory Solar Observations

Solar Images Friday, 23 October 2026

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 07:30 UT
Observer: Emre YILMAN
g: 2
f: 13
R: 33
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HH_ – 1

Group 2 · EAO – 12

Group 3

Group 4

RDS data file (.gzd)

[Gözlem]
Tarih=23.10.2026
Saat=07:30
Gözlemci=Emre YILMAN
KontrolEden=Sezer ÖZEL
Durumaçısı=25.63
Enlemaçısı=5.23
Boylamaçısı=0.04
Boylamfark=2
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.3
Sırano=20594
AyRasatNo=17
RasatÖnceki=22.10.2026
RasatSonraki=24.10.2026

[Leke Grupları]
Grupsayısı=2:2:0
LekeSayısı=13:13:0
RölatifSayı=33:33:0
01=HH_ 01 +07.851 +75.385 075.425 +0.000 0000 0 +09.369 +76.673 +06.333 +74.980 +07.851 +75.731 +07.851 +75.390
02=EAO 12 +14.202 +45.162 045.202 +0.000 0000 0 +16.899 +52.470 +11.505 +38.277 +14.202 +51.847 +14.202 +38.477

20261023.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.