Images 20.08.2022 · Istanbul University Observatory Solar Observations

Solar Images Saturday, 20 August 2022

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 09:00 UT
Observer: Ergün EGE
g: 6
f: 16
R: 76
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CAO – 5

Group 2 · BXO – 2

Group 3 · BXO – 4

Group 4 · BXO – 3

Group 5 · AX_ – 1

Group 6 · AX_ – 1

RDS data file (.gzd)

[Gözlem]
Tarih=20.08.2022
Saat=09:00
Gözlemci=Ergün EGE
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=17.72
Enlemaçısı=6.86
Boylamaçısı=327.14
Boylamfark=1
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.4
Sırano=19527
AyRasatNo=20
RasatÖnceki=19.08.2022
RasatSonraki=21.08.2022

[Leke Grupları]
Grupsayısı=6:2:4
LekeSayısı=16:7:9
RölatifSayı=76:27:49
01=CAO 05 +10.355 +43.530 010.193 +0.000 0000 0 +12.204 +45.259 +08.506 +40.848 +10.355 +45.590 +10.355 +41.480
02=BXO 02 +27.200 -06.311 320.829 +0.000 0000 0 +29.210 -02.370 +25.380 -10.585 +27.200 -02.237 +27.200 -10.385
03=BXO 04 -22.431 +60.400 027.540 +0.000 0000 0 -20.893 +62.638 -23.970 +58.162 -22.431 +62.438 -22.431 +58.362
04=BXO 03 -08.300 -00.644 326.496 +0.000 0000 0 -07.147 +01.532 -08.913 -02.820 -08.300 +01.332 -08.300 -02.620
05=AX_ 01 -18.265 -03.821 323.319 -1.000 0000 0 -18.265 -03.821 -18.265 -03.821
06=AX_ 01 -18.419 -28.227 298.913 -1.000 0000 0 -18.419 -28.227 -18.419 -28.227

20220820.gzd

Chromosphere (H-α) FITS frames

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 →

2022/20220820_ee · EE · 12 frames · 257.1 MB · 09:05:34–09:48:18 UT

09:05:34 UT · 30 ms