Images 21.02.2022 · Istanbul University Observatory Solar Observations

Solar Images Monday, 21 February 2022

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 08:11 UT
Observer: Ergün EGE
g: 5
f: 6
R: 56
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 2

Group 2 · AX_ – 1

Group 3 · ?__ – 1

Group 4 · AX_ – 1

Group 5 · AX_ – 1

RDS data file (.gzd)

[Gözlem]
Tarih=21.02.2022
Saat=08:11
Gözlemci=Ergün EGE
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=-19.37
Enlemaçısı=-7.05
Boylamaçısı=186.52
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.2
Sırano=19380
AyRasatNo=14
RasatÖnceki=20.02.2022
RasatSonraki=22.02.2022

[Leke Grupları]
Grupsayısı=5:3:2
LekeSayısı=6:4:2
RölatifSayı=56:34:22
01=BXO 02 +16.855 -19.669 166.851 +0.000 0000 0 +18.152 -16.709 +15.559 -22.629 +16.855 -16.909 +16.855 -22.429
02=AX_ 01 +17.122 -70.560 115.960 -1.000 0000 0 +17.122 -70.560 +17.122 -70.560
03=?__ 01 +13.954 -81.215 105.305 -1.000 0000 0 +13.954 -81.215 +13.954 -81.215
04=AX_ 01 -28.400 +28.738 215.258 -1.000 0000 0 -28.400 +28.738 -28.400 +28.738
05=AX_ 01 -23.952 -26.454 160.660 -1.000 0000 0 -23.952 -26.454 -23.952 -26.454

20220221.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 →

2022/20220221_ee · EE · 16 frames · 342.8 MB · 08:00:26–08:26:10 UT

08:22:14 UT · 40 ms