Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 23 June 2023

‹ 22.06.2023 2023 24.06.2023 ›

Photosphere sunspot drawing and RDS evaluation

23.06.2023 photosphere drawing

High-resolution scan (3220 px)

Time
10:13 UT
Observer
Başar COŞKUNOĞLU
g
12
f
101
R
221
Seeing
4 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CSO – 4Group 1 · CSO – 4 Group 2 · DSI – 8Group 2 · DSI – 8 Group 3 · DSI – 22Group 3 · DSI – 22 Group 4 · CSI – 6Group 4 · CSI – 6 Group 5 · HS_ – 3Group 5 · HS_ – 3 Group 6 · AX_ – 3Group 6 · AX_ – 3 Group 7 · HS_ – 15Group 7 · HS_ – 15 Group 8 · BXI – 9Group 8 · BXI – 9 Group 9 · CSI – 17Group 9 · CSI – 17 Group 10 · HS_ – 10Group 10 · HS_ – 10 Group 11 · AX_ – 1Group 11 · AX_ – 1 Group 12 · BXO – 3Group 12 · BXO – 3
RDS data file (.gzd) 
[Gözlem]
Tarih=23.06.2023
Saat=10:13
Gözlemci=Başar COŞKUNOĞLU
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=-6.24
Enlemaçısı=1.95
Boylamaçısı=236.54
Boylamfark=1
GKalite=4
GDurum=
Kuzeyaçısı=-0.4
Sırano=19743
AyRasatNo=21
RasatÖnceki=22.06.2023
RasatSonraki=24.06.2023

[Leke Grupları]
Grupsayısı=12:6:6
LekeSayısı=101:46:55
RölatifSayı=221:106:115
01=CSO 04 +10.470 +31.225 267.765 16.596 0000 0 +12.178 +35.210 +08.762 +27.240 +09.246 +34.616 +11.424 +27.393
02=DSI 08 +19.929 +26.661 263.201 23.619 0000 0 +21.429 +30.430 +18.430 +23.279 +18.613 +29.342 +20.792 +24.352
03=DSI 22 +21.587 -05.123 231.417 17.586 0000 0 +25.245 -00.263 +17.928 -09.984 +21.587 -00.463 +24.870 -08.383
04=CSI 06 +09.488 -28.593 207.947 +0.000 0000 0 +10.170 -26.260 +08.806 -31.160 +09.488 -26.643 +09.488 -30.543
05=HS_ 03 +09.779 -48.709 187.831 +0.000 0000 0 +10.746 -46.985 +08.811 -50.433 +09.779 -47.485 +09.779 -49.933
06=AX_ 03 +22.195 -70.878 165.662 +0.000 0000 0 +22.750 -70.730 +21.640 -71.682 +22.195 -70.902 +22.195 -70.854
07=HS_ 15 -14.786 +48.583 285.123 +0.000 0000 0 -12.912 +52.460 -16.660 +45.120 -14.786 +51.753 -14.786 +45.413
08=BXI 09 -18.949 +15.610 251.601 27.849 0000 0 -17.323 +18.800 -20.574 +12.113 -20.119 +17.440 -17.529 +12.529
09=CSI 17 -19.392 +00.498 237.380 34.895 0000 0 -16.439 +04.955 -22.345 -03.959 -18.170 +02.870 -21.443 -02.836
10=HS_ 10 -15.721 -32.627 203.913 +0.000 0000 0 -13.418 -30.492 -18.240 -34.763 -15.721 -30.991 -15.721 -34.262
11=AX_ 01 -10.758 -49.102 187.438 -1.000 0000 0 -10.758 -49.102 -10.758 -49.102
12=BXO 03 -30.297 -58.356 178.184 +0.000 0000 0 -29.773 -54.903 -30.822 -61.809 -30.297 -55.403 -30.297 -61.309
20230623.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 →

2023/20230623_bc · BC · 6 frames · 128.6 MB · 10:22:00–10:25:46 UT

10:23:02 UT · 30 ms 10:23:41 UT · 30 ms 10:22:00 UT · 30 ms 10:25:09 UT · 60 ms · over-exposed 10:25:46 UT · 60 ms · over-exposed 10:24:23 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.