Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 24 May 2024

‹ 23.05.2024 2024 25.05.2024 ›

Photosphere sunspot drawing and RDS evaluation

24.05.2024 photosphere drawing

High-resolution scan (3230 px)

Time
12:45 UT
Observer
Ergün EGE
g
7
f
23
R
93
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · HR_ – 1Group 3 · HR_ – 1 Group 4 · CSO – 2Group 4 · CSO – 2 Group 5 · ESI – 10Group 5 · ESI – 10 Group 6 · HK_ – 4Group 6 · HK_ – 4 Group 7 · BXO – 4Group 7 · BXO – 4
RDS data file (.gzd) 
[Gözlem]
Tarih=24.05.2024
Saat=12:45
Gözlemci=Ergün EGE
KontrolEden=Korhan YELKENCİ
Durumaçısı=-17.91
Enlemaçısı=-1.54
Boylamaçısı=121.31
Boylamfark=1
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.6
Sırano=19986
AyRasatNo=17
RasatÖnceki=23.05.2024
RasatSonraki=25.05.2024

[Leke Grupları]
Grupsayısı=7:2:5
LekeSayısı=23:2:21
RölatifSayı=93:22:71
01=AX_ 01 +15.946 -68.910 053.219 +0.000 0000 0 +16.387 -67.278 +15.506 -68.903 +15.946 -68.598 +15.946 -69.223
02=AX_ 01 +22.958 -77.575 043.735 +0.000 0000 0 +23.486 -77.299 +22.431 -77.851 +22.958 -77.799 +22.958 -77.351
03=HR_ 01 -07.746 +73.946 195.256 +0.000 0000 0 -06.832 +75.589 -08.660 +72.303 -07.746 +75.890 -07.746 +72.803
04=CSO 02 -05.568 +55.837 177.147 +0.000 0000 0 -04.845 +59.186 -06.290 +52.488 -05.568 +58.686 -05.568 +52.988
05=ESI 10 -12.492 +28.194 149.504 +0.000 0000 0 -08.608 +33.924 -16.377 +22.464 -12.492 +33.724 -12.492 +22.664
06=HK_ 04 -07.608 +20.113 141.423 +0.000 0000 0 -06.375 +21.394 -08.841 +18.832 -07.608 +20.894 -07.608 +19.332
07=BXO 04 -08.545 -24.135 097.175 +0.000 0000 0 -07.916 -20.262 -09.174 -28.700 -08.545 -20.416 -08.545 -27.854
20240524.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 →

2024/20240524_ee · EE · 5 frames · 107.1 MB · 13:28:11–13:31:08 UT

13:28:11 UT · 30 ms 13:30:00 UT · 50 ms 13:29:25 UT · 40 ms 13:30:34 UT · 60 ms · over-exposed 13:31:08 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.