Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 18 August 2022

‹ 17.08.2022 2022 19.08.2022 ›

Photosphere sunspot drawing and RDS evaluation

18.08.2022 photosphere drawing

High-resolution scan (3231 px)

Time
09:00 UT
Observer
Ergün EGE
g
7
f
25
R
95
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CSO – 4Group 1 · CSO – 4 Group 2 · CSO – 3Group 2 · CSO – 3 Group 3 · AX_ – 1Group 3 · AX_ – 1 Group 4 · AX_ – 2Group 4 · AX_ – 2 Group 5 · DKI – 13Group 5 · DKI – 13 Group 6 · AX_ – 1Group 6 · AX_ – 1 Group 7 · AX_ – 1Group 7 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=18.08.2022
Saat=09:00
Gözlemci=Ergün EGE
KontrolEden=Olcay PLEVNE
Durumaçısı=17.08
Enlemaçısı=6.78
Boylamaçısı=353.63
Boylamfark=1
GKalite=3
GDurum=
Kuzeyaçısı=-0.5
Sırano=19525
AyRasatNo=18
RasatÖnceki=17.08.2022
RasatSonraki=19.08.2022

[Leke Grupları]
Grupsayısı=7:2:5
LekeSayısı=25:7:18
RölatifSayı=95:27:68
01=CSO 04 +10.627 +15.650 008.695 +0.000 0000 0 +11.807 +17.369 +09.447 +12.761 +10.627 +17.169 +10.627 +12.961
02=CSO 03 +27.203 -31.930 321.700 +0.000 0000 0 +29.138 -28.400 +25.267 -35.855 +27.203 -28.204 +27.203 -35.655
03=AX_ 01 -25.363 +51.433 045.630 +0.000 0000 0 -24.762 +52.230 -25.963 +50.844 -25.363 +51.626 -25.363 +51.240
04=AX_ 02 -24.614 +43.347 036.977 +0.000 0000 0 -23.994 +44.790 -25.234 +42.615 -24.614 +43.935 -24.614 +42.759
05=DKI 13 -23.440 +35.648 029.278 +0.000 0000 0 -20.530 +38.459 -26.351 +32.837 -23.440 +38.259 -23.440 +33.370
06=AX_ 01 -08.699 -28.942 324.689 +0.000 0000 0 -08.262 -28.281 -09.137 -29.602 -08.699 -28.781 -08.699 -29.102
07=AX_ 01 -18.756 -54.581 299.490 +0.000 0000 0 -18.263 -53.596 -19.248 -55.565 -18.756 -54.970 -18.756 -55.660
20220818.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 →

2022/20220818_ee · EE · 11 frames · 235.7 MB · 09:05:06–09:38:20 UT

09:10:57 UT · 40 ms 09:12:12 UT · 50 ms · over-exposed 09:38:20 UT · 30 ms 09:36:51 UT · 30 ms 09:23:23 UT · 30 ms 09:05:06 UT · 30 ms 09:37:40 UT · 60 ms · over-exposed 09:22:44 UT · 60 ms · over-exposed 09:20:26 UT · 60 ms · over-exposed 09:12:50 UT · 60 ms · over-exposed 09:15:11 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.