Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 26 June 2023

‹ 25.06.2023 2023 27.06.2023 ›

Photosphere sunspot drawing and RDS evaluation

26.06.2023 photosphere drawing

High-resolution scan (3230 px)

Time
06:45 UT
Observer
Ergün EGE
g
8
f
33
R
113
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · DSI – 16Group 2 · DSI – 16 Group 3 · AX_ – 1Group 3 · AX_ – 1 Group 4 · BXO – 5Group 4 · BXO – 5 Group 5 · AX_ – 3Group 5 · AX_ – 3 Group 6 · AX_ – 1Group 6 · AX_ – 1 Group 7 · CAO – 5Group 7 · CAO – 5 Group 8 · AX_ – 1Group 8 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=26.06.2023
Saat=06:45
Gözlemci=Ergün EGE
KontrolEden=Korhan YELKENCİ
Durumaçısı=-4.96
Enlemaçısı=2.28
Boylamaçısı=198.58
Boylamfark=3
GKalite=3
GDurum=
Kuzeyaçısı=-0.5
Sırano=19746
AyRasatNo=24
RasatÖnceki=25.06.2023
RasatSonraki=27.06.2023

[Leke Grupları]
Grupsayısı=8:5:3
LekeSayısı=33:26:7
RölatifSayı=113:76:37
01=AX_ 01 +21.720 +63.695 262.275 +0.000 0000 0 +21.440 +64.882 +20.703 +62.509 +21.720 +64.382 +21.720 +63.800
02=DSI 16 +23.321 +33.364 231.944 +0.000 0000 0 +26.300 +38.530 +20.639 +28.199 +23.321 +38.330 +23.321 +28.399
03=AX_ 01 +09.230 +12.251 210.831 +0.000 0000 0 +09.499 +12.657 +08.961 +11.845 +09.230 +12.157 +09.230 +12.345
04=BXO 05 +22.476 -28.796 169.784 +0.000 0000 0 +23.721 -27.195 +21.230 -30.398 +22.476 -27.395 +22.476 -30.198
05=AX_ 03 +14.671 -35.320 163.260 +0.000 0000 0 +15.671 -33.845 +13.670 -36.796 +14.671 -34.450 +14.671 -36.596
06=AX_ 01 -18.689 +41.718 240.298 +0.000 0000 0 -18.207 +42.500 -19.171 +40.936 -18.689 +42.000 -18.689 +41.436
07=CAO 05 -13.790 +09.528 208.108 +0.000 0000 0 -11.406 +11.640 -16.173 +07.416 -13.790 +11.440 -13.790 +07.616
08=AX_ 01 -30.405 -21.526 177.540 +0.000 0000 0 -29.955 -21.102 -30.856 -21.949 -30.405 -21.602 -30.405 -21.449
20230626.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 →

2023/20230626_ee · EE · 15 frames · 321.4 MB · 06:29:38–07:09:42 UT

07:07:22 UT · 30 ms 06:34:27 UT · 30 ms 06:35:06 UT · 40 ms 06:35:42 UT · 50 ms 07:08:31 UT · 50 ms · over-exposed 07:07:57 UT · 40 ms 06:31:00 UT · 40 ms 06:31:41 UT · 50 ms · over-exposed 06:29:38 UT · 30 ms 06:32:24 UT · 60 ms · over-exposed 06:50:41 UT · 60 ms · over-exposed 07:09:07 UT · 60 ms · over-exposed 06:33:02 UT · 70 ms · over-exposed 06:51:41 UT · 70 ms · over-exposed 07:09:42 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.