Images 04.10.2021 · Istanbul University Observatory Solar Observations

Solar Images Monday, 4 October 2021

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3231 px)

Time: 07:49 UT
Observer: Ergün EGE
g: 2
f: 6
R: 26
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · EAI – 5

Group 2 · HR_ – 1

RDS data file (.gzd)

[Gözlem]
Tarih=4.10.2021
Saat=07:49
Gözlemci=Ergün EGE
KontrolEden=Süleyman FİŞEK
Durumaçısı=26.14
Enlemaçısı=6.55
Boylamaçısı=231.48
Boylamfark=2
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.4
Sırano=19292
AyRasatNo=3
RasatÖnceki=03.10.2021
RasatSonraki=05.10.2021

[Leke Grupları]
Grupsayısı=2:2:0
LekeSayısı=6:6:0
RölatifSayı=26:26:0
01=EAI 05 +30.938 +10.356 241.836 +0.000 0000 0 +33.332 +15.673 +28.543 +05.390 +30.938 +15.473 +30.938 +05.239
02=HR_ 01 +15.798 -75.926 155.554 +0.000 0000 0 +16.795 -74.546 +14.801 -77.305 +15.798 -75.470 +15.798 -76.806

20211004.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 →

2021/20211004_ee · EE · 10 frames · 214.3 MB · 07:36:53–08:03:35 UT

08:02:31 UT · 40 ms