Images 07.09.2025 · Istanbul University Observatory Solar Observations

Solar Images Sunday, 7 September 2025

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 08:40 UT
Observer: Korhan YELKENCİ
g: 5
f: 30
R: 80
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 1

Group 2 · CAI – 14

Group 3 · DSI – 3

Group 4 · HS_ – 1

Group 5 · DAI – 11

RDS data file (.gzd)

[Gözlem]
Tarih=7.09.2025
Saat=08:40
Gözlemci=Korhan YELKENCİ
KontrolEden=Korhan YELKENCİ
Durumaçısı=22.58
Enlemaçısı=7.25
Boylamaçısı=24
Boylamfark=2
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.3
Sırano=20339
AyRasatNo=5
RasatÖnceki=05.09.2025
RasatSonraki=08.09.2025

[Leke Grupları]
Grupsayısı=5:3:2
LekeSayısı=30:18:12
RölatifSayı=80:48:32
01=HS_ 01 +08.779 +40.258 064.258 +0.000 0000 0 +09.578 +41.570 +07.981 +38.946 +08.779 +41.700 +08.779 +39.446
02=CAI 14 +28.202 +22.527 046.527 17.259 0000 0 +29.790 +27.357 +26.615 +17.696 +29.590 +26.870 +26.815 +17.896
03=DSI 03 +08.255 +02.353 026.353 19.896 0000 0 +09.534 +05.540 +06.976 -00.834 +09.334 +05.340 +07.176 -00.634
04=HS_ 01 -13.567 -13.434 010.566 +0.000 0000 0 -12.332 -12.128 -14.802 -14.739 -13.567 -12.628 -13.567 -14.240
05=DAI 11 -13.193 -24.535 359.465 16.430 0000 0 -11.992 -20.953 -14.394 -28.117 -12.204 -21.153 -14.194 -27.917

20250907.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.