Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 19 July 2024

‹ 18.07.2024 2024 20.07.2024 ›

Photosphere sunspot drawing and RDS evaluation

19.07.2024 photosphere drawing

High-resolution scan (3231 px)

Time
07:00 UT
Observer
Süleyman FİŞEK
g
15
f
116
R
266
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DSI – 4Group 1 · DSI – 4 Group 2 · DSI – 5Group 2 · DSI – 5 Group 3 · AX_ – 5Group 3 · AX_ – 5 Group 4 · CRO – 3Group 4 · CRO – 3 Group 5 · HR_ – 1Group 5 · HR_ – 1 Group 6 · BXI – 7Group 6 · BXI – 7 Group 7 · CSI – 11Group 7 · CSI – 11 Group 8 · CSO – 2Group 8 · CSO – 2 Group 9 · CSI – 9Group 9 · CSI – 9 Group 10 · CSI – 11Group 10 · CSI – 11 Group 11 · DHC – 11Group 11 · DHC – 11 Group 12 · HR_ – 1Group 12 · HR_ – 1 Group 13 · EAC – 36Group 13 · EAC – 36 Group 14 · CAI – 8Group 14 · CAI – 8 Group 15 · CSO – 2Group 15 · CSO – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=19.07.2024
Saat=07:00
Gözlemci=Süleyman FİŞEK
KontrolEden=Ergün EGE
Durumaçısı=5.69
Enlemaçısı=4.75
Boylamaçısı=103.42
Boylamfark=3
GKalite=3
GDurum=G.T
Kuzeyaçısı=0.0
Sırano=20036
AyRasatNo=17
RasatÖnceki=18.07.2024
RasatSonraki=20.07.2024

[Leke Grupları]
Grupsayısı=15:8:7
LekeSayısı=116:38:78
RölatifSayı=266:118:148
01=DSI 04 +11.820 +64.950 168.370 +0.000 0000 0 +12.544 +65.854 +09.620 +64.460 +00.000 +00.000 +00.000 +00.000
02=DSI 05 +15.281 +45.580 148.478 +0.000 0000 0 +16.329 +47.314 +14.233 +42.802 +15.281 +47.114 +15.281 +43.200
03=AX_ 05 +14.632 +28.255 131.675 +0.000 0000 0 +15.346 +29.505 +13.917 +27.500 +14.632 +28.757 +14.632 +27.752
04=CRO 03 +19.578 +06.788 110.208 +0.000 0000 0 +20.333 +08.523 +18.822 +05.530 +19.578 +07.785 +19.578 +05.792
05=HR_ 01 +22.215 -12.235 091.185 -1.000 0000 0 +22.215 -12.235 +22.215 -12.235
06=BXI 07 +24.804 -29.226 074.194 +0.000 0000 0 +26.669 -26.467 +22.940 -31.984 +24.804 -26.667 +24.804 -31.784
07=CSI 11 +02.336 -32.591 070.829 +0.000 0000 0 +03.807 -29.935 +00.865 -35.246 +02.336 -30.135 +02.336 -35.460
08=CSO 02 +18.366 -45.244 058.176 +0.000 0000 0 +19.519 -42.641 +17.213 -47.847 +18.366 -42.841 +18.366 -47.647
09=CSI 09 -11.786 +58.468 161.888 38.591 0000 0 -06.386 +68.207 -17.186 +48.730 -16.611 +66.320 -07.780 +55.940
10=CSI 11 -23.528 +49.797 153.217 +0.000 0000 0 -19.827 +45.512 -27.230 +54.830 -23.528 +53.883 -23.528 +45.712
11=DHC 11 -06.131 +12.282 115.702 16.377 0000 0 -04.466 +15.575 -07.796 +08.988 -05.788 +14.255 -07.108 +09.759
12=HR_ 01 -19.448 +08.328 111.748 +0.000 0000 0 -19.223 +08.589 -19.673 +08.670 -19.448 +07.869 -19.448 +08.788
13=EAC 36 -07.839 -11.358 092.620 08.977 0000 0 -04.722 -05.872 -10.957 -16.844 -08.296 -07.219 -06.915 -15.999
14=CAI 08 -09.810 -24.299 079.121 +0.000 0000 0 -08.183 -26.183 -09.978 -22.416 -09.810 -22.616 -09.810 -25.983
15=CSO 02 -16.343 -37.557 065.863 +0.000 0000 0 -15.107 -38.672 -17.578 -36.443 +00.000 +00.000 +00.000 +00.000
20240719.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 →

2024/20240719_sf · SF · 4 frames · 85.7 MB · 07:37:56–07:42:12 UT

07:37:56 UT · 30 ms 07:41:25 UT · 30 ms 07:42:12 UT · 60 ms · over-exposed 07:39:37 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.