Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 14 June 2026

‹ 12.06.2026 2026 15.06.2026 ›

Photosphere sunspot drawing and RDS evaluation

14.06.2026 photosphere drawing

High-resolution scan (3229 px)

Time
08:40 UT
Observer
Ergün EGE
g
4
f
20
R
60
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 1Group 1 · HS_ – 1 Group 2 · CAI – 9Group 2 · CAI – 9 Group 3 · BXO – 5Group 3 · BXO – 5 Group 4 · CAO – 5Group 4 · CAO – 5
RDS data file (.gzd) 
[Gözlem]
Tarih=14.06.2026
Saat=08:40
Gözlemci=Ergün EGE
KontrolEden=İrem ÖZDEMİR
Durumaçısı=-10.07
Enlemaçısı=0.91
Boylamaçısı=290.46
Boylamfark=2
GKalite=3
GDurum=
Kuzeyaçısı=-0.3
Sırano=20485
AyRasatNo=9
RasatÖnceki=12.06.2026
RasatSonraki=15.06.2026

[Leke Grupları]
Grupsayısı=4:3:1
LekeSayısı=20:15:5
RölatifSayı=60:45:15
01=HS_ 01 +17.484 +44.103 334.563 +0.000 0000 0 +18.250 +45.870 +16.717 +43.119 +17.484 +44.979 +17.484 +43.228
02=CAI 09 +08.932 +02.950 292.555 +0.000 0000 0 +11.660 +06.946 +06.204 -02.757 +08.932 +06.746 +08.932 -02.557
03=BXO 05 +10.370 -47.252 243.208 +0.000 0000 0 +10.695 -45.606 +09.379 -48.899 +10.370 -46.105 +10.370 -48.398
04=CAO 05 -13.110 +45.791 336.251 +0.000 0000 0 -10.419 +50.670 -15.603 +40.913 -13.110 +50.470 -13.110 +41.113
20260614.gzd

Chromosphere (H-α) FITS frames

H-α

The images are made automatically with a fixed, gentle rule: uneven illumination and most of the limb darkening are removed, and the brightness is shown on a linear scale (no sharpening); prominences get their own scale outside the limb. Frames are ordered by sharpness (seeing); frames without the Sun (darks, bias) come last. Method →

2026/20260614 · · 7 frames · 150.0 MB · 08:46:17–08:57:34 UT

08:55:36 UT · 30 ms 08:46:17 UT · 30 ms 08:48:51 UT · 40 ms · over-exposed 08:56:18 UT · 40 ms · over-exposed 08:57:34 UT · 60 ms · over-exposed 08:56:54 UT · 50 ms · over-exposed 08:52:18 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.