Images 18.09.2022 · Istanbul University Observatory Solar Observations

Solar Images Sunday, 18 September 2022

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3229 px)

Time: 06:50 UT
Observer: Ergün EGE
g: 2
f: 18
R: 38
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · ESC – 3

Group 2 · ESI – 15

RDS data file (.gzd)

[Gözlem]
Tarih=18.09.2022
Saat=06:50
Gözlemci=Ergün EGE
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=24.55
Enlemaçısı=7.15
Boylamaçısı=305.48
Boylamfark=3
GKalite=3
GDurum=
Kuzeyaçısı=-0.4
Sırano=19554
AyRasatNo=17
RasatÖnceki=17.09.2022
RasatSonraki=19.09.2022

[Leke Grupları]
Grupsayısı=2:0:2
LekeSayısı=18:0:18
RölatifSayı=38:0:38
01=ESC 03 -23.844 +47.100 352.580 +0.000 0000 0 -22.684 +52.852 -25.400 +41.347 -23.844 +52.652 -23.844 +41.547
02=ESI 15 -24.506 -09.904 295.576 +0.000 0000 0 -21.368 -03.456 -27.644 -16.353 -24.506 -03.656 -24.506 -16.153

20220918.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 →

2022/20220918_ee · EE · 9 frames · 192.8 MB · 06:59:32–07:14:54 UT

07:14:54 UT · 30 ms