Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Saturday, 24 June 2023

‹ 23.06.2023 2023 25.06.2023 ›

Photosphere sunspot drawing and RDS evaluation

24.06.2023 photosphere drawing

High-resolution scan (3214 px)

Time
10:12 UT
Observer
Başar COŞKUNOĞLU
g
14
f
98
R
238
Seeing
4 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 11Group 1 · BXI – 11 Group 2 · BXO – 8Group 2 · BXO – 8 Group 3 · BXI – 8Group 3 · BXI – 8 Group 4 · AX_ – 4Group 4 · AX_ – 4 Group 5 · CSI – 22Group 5 · CSI – 22 Group 6 · HS_ – 3Group 6 · HS_ – 3 Group 7 · BXO – 3Group 7 · BXO – 3 Group 8 · AX_ – 1Group 8 · AX_ – 1 Group 9 · CSI – 6Group 9 · CSI – 6 Group 10 · BXI – 6Group 10 · BXI – 6 Group 11 · CSI – 12Group 11 · CSI – 12 Group 12 · AX_ – 3Group 12 · AX_ – 3 Group 13 · DSO – 8Group 13 · DSO – 8 Group 14 · BXO – 3Group 14 · BXO – 3
RDS data file (.gzd) 
[Gözlem]
Tarih=24.06.2023
Saat=10:12
Gözlemci=Başar COŞKUNOĞLU
KontrolEden=Olcay PLEVNE
Durumaçısı=-5.79
Enlemaçısı=2.06
Boylamaçısı=223.31
Boylamfark=1
GKalite=4
GDurum=G.T
Kuzeyaçısı=-0.5
Sırano=19744
AyRasatNo=22
RasatÖnceki=23.06.2023
RasatSonraki=25.06.2023

[Leke Grupları]
Grupsayısı=14:8:6
LekeSayısı=98:60:38
RölatifSayı=238:140:98
01=BXI 11 +10.189 +45.698 269.800 15.602 0000 0 +12.212 +50.931 +08.167 +40.465 +09.134 +50.290 +11.520 +41.709
02=BXO 08 +21.580 +40.920 264.230 14.490 0000 0 +22.902 +44.689 +19.213 +37.150 +19.971 +44.227 +21.595 +37.721
03=BXI 08 +17.516 +11.383 234.693 +0.000 0000 0 +18.746 +13.924 +16.285 +08.841 +17.516 +13.724 +17.516 +09.410
04=AX_ 04 +10.251 +09.536 232.846 +0.000 0000 0 +10.906 +10.648 +09.596 +08.424 +10.251 +10.148 +10.251 +08.924
05=CSI 22 +23.308 +07.413 230.723 15.485 0000 0 +25.663 +12.550 +20.952 +02.275 +22.319 +11.996 +24.834 +02.870
06=HS_ 03 +09.104 -12.755 210.555 +0.000 0000 0 +09.578 -12.247 +08.629 -13.264 +09.104 -12.747 +09.104 -12.764
07=BXO 03 +09.242 -33.308 190.200 +0.000 0000 0 +09.644 -31.340 +08.840 -35.581 +09.242 -31.687 +09.242 -34.928
08=AX_ 01 +21.820 -54.518 168.792 -1.000 0000 0 +21.820 -54.518 +21.820 -54.518
09=CSI 06 -14.340 +62.492 285.802 +0.000 0000 0 -13.590 +65.735 -15.622 +59.249 -14.340 +65.535 -14.340 +59.449
10=BXI 06 -17.735 +28.604 251.914 +0.000 0000 0 -17.700 +30.157 -18.401 +27.510 -17.735 +29.427 -17.735 +27.781
11=CSI 12 -18.718 +13.481 236.791 28.205 0000 0 -17.481 +15.695 -19.954 +11.267 -18.000 +14.905 -19.640 +11.845
12=AX_ 03 -17.228 +03.721 227.310 +0.000 0000 0 -16.779 +04.402 -17.676 +03.400 -17.228 +03.722 -17.228 +03.720
13=DSO 08 -15.637 -18.730 204.580 46.718 0000 0 -13.349 -16.616 -17.926 -20.845 -14.213 -17.277 -17.157 -20.540
14=BXO 03 -30.180 -44.452 178.858 +0.000 0000 0 -29.691 -40.902 -30.670 -48.200 -30.180 -41.303 -30.180 -47.601
20230624.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 →

2023/20230624_bc · BC · 6 frames · 128.6 MB · 10:26:26–10:31:49 UT

10:29:29 UT · 30 ms 10:26:26 UT · 30 ms 10:28:20 UT · 30 ms 10:31:49 UT · 60 ms · over-exposed 10:31:04 UT · 60 ms · over-exposed 10:30:27 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.