Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 22 September 2023

‹ 21.09.2023 2023 23.09.2023 ›

Photosphere sunspot drawing and RDS evaluation

22.09.2023 photosphere drawing

High-resolution scan (3224 px)

Time
09:30 UT
Observer
Başar COŞKUNOĞLU
g
13
f
119
R
249
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 2Group 1 · HS_ – 2 Group 2 · ESC – 30Group 2 · ESC – 30 Group 3 · BXI – 12Group 3 · BXI – 12 Group 4 · BXI – 23Group 4 · BXI – 23 Group 5 · HK_ – 16Group 5 · HK_ – 16 Group 6 · HS_ – 2Group 6 · HS_ – 2 Group 7 · AX_ – 1Group 7 · AX_ – 1 Group 8 · AX_ – 1Group 8 · AX_ – 1 Group 9 · HS_ – 1Group 9 · HS_ – 1 Group 10 · HS_ – 5Group 10 · HS_ – 5 Group 11 · CSO – 5Group 11 · CSO – 5 Group 12 · HS_ – 1Group 12 · HS_ – 1 Group 13 · DSI – 20Group 13 · DSI – 20
RDS data file (.gzd) 
[Gözlem]
Tarih=22.09.2023
Saat=09:30
Gözlemci=Başar COŞKUNOĞLU
KontrolEden=Burçin TANIK
Durumaçısı=25.08
Enlemaçısı=7.06
Boylamaçısı=113.81
Boylamfark=1
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.2
Sırano=19829
AyRasatNo=21
RasatÖnceki=21.09.2023
RasatSonraki=23.09.2023

[Leke Grupları]
Grupsayısı=13:8:5
LekeSayısı=119:87:32
RölatifSayı=249:167:82
01=HS_ 02 +29.394 +56.847 170.657 +0.000 0000 0 +30.528 +57.694 +28.260 +56.000 +29.394 +57.194 +29.394 +56.500
02=ESC 30 +29.894 +31.950 145.760 +0.000 0000 0 +31.410 +37.586 +28.379 +26.313 +29.894 +37.386 +29.894 +26.513
03=BXI 12 +09.536 +20.482 134.292 67.786 0000 0 +12.484 +23.378 +06.588 +17.587 +12.560 +20.319 +07.698 +18.536
04=BXI 23 +12.345 -04.107 109.703 34.919 0000 0 +14.549 -01.196 +10.141 -07.180 +14.286 -02.774 +11.734 -06.434
05=HK_ 16 +11.443 -13.584 100.226 +0.000 0000 0 +13.334 -11.406 +09.553 -15.761 +11.443 -11.906 +11.443 -15.261
06=HS_ 02 +19.179 -31.887 081.923 +0.000 0000 0 +20.710 -31.870 +18.286 -32.688 +19.179 -31.978 +19.179 -31.796
07=AX_ 01 +24.864 -38.689 075.121 -1.000 0000 0 +24.864 -38.689 +24.864 -38.689
08=AX_ 01 +22.585 -73.353 040.457 -1.000 0000 0 +22.585 -73.353 +22.585 -73.353
09=HS_ 01 -15.803 +64.759 178.569 +0.000 0000 0 -14.905 +65.677 -16.701 +63.841 -15.803 +65.177 -15.803 +64.341
10=HS_ 05 -19.342 +55.344 169.154 +0.000 0000 0 -18.479 +56.653 -20.206 +54.360 -19.342 +55.991 -19.342 +54.698
11=CSO 05 -22.267 -16.389 097.421 +0.000 0000 0 -21.552 -14.560 -22.983 -18.217 -22.267 -15.610 -22.267 -17.718
12=HS_ 01 -07.554 -35.863 077.947 +0.000 0000 0 -07.550 -35.280 -08.530 -36.446 -07.554 -35.780 -07.554 -35.946
13=DSI 20 -12.350 -43.810 070.729 +0.000 0000 0 -10.340 -39.887 -14.359 -46.276 -12.350 -40.870 -12.350 -46.760
20230922.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 →

2023/20230922_bc · BC · 6 frames · 128.6 MB · 09:44:10–09:47:38 UT

09:45:13 UT · 30 ms 09:45:49 UT · 30 ms 09:44:10 UT · 30 ms 09:46:27 UT · 60 ms · over-exposed 09:47:38 UT · 60 ms · over-exposed 09:47:03 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.