Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 22 June 2023

‹ 21.06.2023 2023 23.06.2023 ›

Photosphere sunspot drawing and RDS evaluation

22.06.2023 photosphere drawing

High-resolution scan (3229 px)

Time
08:30 UT
Observer
Hikmet ÇAKMAK
g
15
f
74
R
224
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CAI – 4Group 1 · CAI – 4 Group 2 · AX_ – 2Group 2 · AX_ – 2 Group 3 · CRI – 8Group 3 · CRI – 8 Group 4 · CAO – 3Group 4 · CAO – 3 Group 5 · AX_ – 1Group 5 · AX_ – 1 Group 6 · CAI – 10Group 6 · CAI – 10 Group 7 · BXI – 4Group 7 · BXI – 4 Group 8 · BXO – 6Group 8 · BXO – 6 Group 9 · ?__ – 1Group 9 · ?__ – 1 Group 10 · CRO – 3Group 10 · CRO – 3 Group 11 · CKI – 12Group 11 · CKI – 12 Group 12 · AX_ – 3Group 12 · AX_ – 3 Group 13 · CAI – 11Group 13 · CAI – 11 Group 14 · HS_ – 5Group 14 · HS_ – 5 Group 15 · AX_ – 1Group 15 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=22.06.2023
Saat=08:30
Gözlemci=Hikmet ÇAKMAK
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=-6.72
Enlemaçısı=1.82
Boylamaçısı=250.72
Boylamfark=2
GKalite=3
GDurum=G.T , H.S
Kuzeyaçısı=-0.4
Sırano=19742
AyRasatNo=20
RasatÖnceki=21.06.2023
RasatSonraki=23.06.2023

[Leke Grupları]
Grupsayısı=15:9:6
LekeSayısı=74:39:35
RölatifSayı=224:129:95
01=CAI 04 +23.611 +63.325 314.450 22.881 0000 0 +25.434 +67.778 +21.788 +58.872 +22.119 +66.223 +24.908 +59.594
02=AX_ 02 +17.305 +27.929 278.649 +0.000 0000 0 +18.203 +29.190 +16.406 +26.667 +00.000 +00.000 +00.000 +00.000
03=CRI 08 +19.994 +13.536 264.256 19.220 0000 0 +21.524 +15.683 +18.464 +11.389 +19.580 +15.200 +20.210 +11.711
04=CAO 03 +11.978 +11.177 261.897 13.210 0000 0 +13.470 +14.748 +10.908 +07.607 +11.249 +14.106 +12.678 +08.600
05=AX_ 01 +15.257 -13.534 237.186 -1.000 0000 0 +15.257 -13.534 +15.257 -13.534
06=CAI 10 +21.821 -17.417 233.303 19.533 0000 0 +25.296 -12.933 +18.345 -21.900 +21.419 -13.724 +24.127 -21.388
07=BXI 04 +08.342 -18.254 232.466 35.110 0000 0 +09.905 -16.476 +06.778 -20.320 +09.133 -17.391 +07.535 -19.664
08=BXO 06 +09.265 -41.890 208.830 +0.000 0000 0 +09.985 -38.260 +08.544 -45.520 +09.265 -38.760 +09.265 -45.200
09=?__ 01 +21.438 -81.988 168.732 +0.000 0000 0 +21.824 -80.898 +21.520 -83.780 +21.438 -81.470 +21.438 -82.929
10=CRO 03 -10.102 +62.267 312.987 25.209 0000 0 -08.668 +65.340 -11.536 +59.194 -09.186 +64.110 -11.210 +59.705
11=CKI 12 -14.149 +34.433 285.153 09.779 0000 0 -12.354 +39.470 -15.945 +29.819 -14.637 +37.543 -13.409 +30.398
12=AX_ 03 -17.982 +02.762 253.482 +0.000 0000 0 -17.451 +04.130 -18.512 +01.511 -17.982 +03.572 -17.982 +01.953
13=CAI 11 -20.440 -14.747 235.973 23.911 0000 0 -17.697 -11.526 -22.392 -17.967 -18.861 -12.407 -21.146 -17.571
14=HS_ 05 -15.795 -45.560 205.664 +0.000 0000 0 -13.539 -42.993 -18.520 -47.118 -15.795 -43.998 -15.795 -47.123
15=AX_ 01 -11.317 -62.279 188.441 -1.000 0000 0 -11.317 -62.279 -11.317 -62.279
20230622.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 →

2023/20230622_hc · HC · 8 frames · 171.4 MB · 08:35:21–09:18:19 UT

08:37:01 UT · 30 ms 08:35:21 UT · 30 ms 09:00:35 UT · 30 ms 09:17:21 UT · 30 ms 09:14:17 UT · 30 ms 08:41:02 UT · 60 ms · over-exposed 08:59:34 UT · 60 ms · over-exposed 09:18:19 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.