Images 12.02.2022 · Istanbul University Observatory Solar Observations

Solar Images Saturday, 12 February 2022

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3231 px)

Time: 08:45 UT
Observer: Ergün EGE
g: 3
f: 12
R: 42
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · FSI – 5

Group 2 · BXO – 5

Group 3 · HH_ – 2

RDS data file (.gzd)

[Gözlem]
Tarih=12.02.2022
Saat=08:45
Gözlemci=Ergün EGE
KontrolEden=Talar YONTAN
Durumaçısı=-16.45
Enlemaçısı=-6.7
Boylamaçısı=304.73
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.2
Sırano=19374
AyRasatNo=8
RasatÖnceki=11.02.2022
RasatSonraki=15.02.2022

[Leke Grupları]
Grupsayısı=3:1:2
LekeSayısı=12:5:7
RölatifSayı=42:15:27
01=FSI 05 +24.324 +30.545 335.275 +0.000 0000 0 +25.805 +39.321 +22.844 +21.769 +24.324 +39.121 +24.324 +21.969
02=BXO 05 -20.475 +37.431 342.161 +0.000 0000 0 -19.340 +39.496 -21.610 +35.367 -20.475 +39.296 -20.475 +35.567
03=HH_ 02 -07.997 -61.448 243.282 +0.000 0000 0 -07.300 -58.659 -08.991 -64.236 -07.997 -59.160 -07.997 -63.737

20220212.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 →

2022/20220212_ee · EE · 9 frames · 192.8 MB · 08:54:42–09:18:30 UT

08:57:09 UT · 30 ms