Images 15.04.2022 · Istanbul University Observatory Solar Observations

Solar Images Friday, 15 April 2022

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3224 px)

Time: 09:50 UT
Observer: Başar COŞKUNOĞLU
g: 4
f: 10
R: 50
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 3

Group 2 · AX_ – 2

Group 3 · AX_ – 2

Group 4 · HS_ – 3

RDS data file (.gzd)

[Gözlem]
Tarih=15.04.2022
Saat=09:50
Gözlemci=Başar COŞKUNOĞLU
KontrolEden=Süleyman FİŞEK
Durumaçısı=-25.99
Enlemaçısı=-5.6
Boylamaçısı=206.85
Boylamfark=1
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.5
Sırano=19410
AyRasatNo=11
RasatÖnceki=14.04.2022
RasatSonraki=16.04.2022

[Leke Grupları]
Grupsayısı=4:3:1
LekeSayısı=10:7:3
RölatifSayı=50:37:13
01=AX_ 03 +15.300 -25.374 181.476 +0.000 0000 0 +15.540 -24.515 +14.465 -26.232 +15.300 -25.160 +15.300 -25.733
02=AX_ 02 +14.615 -30.200 176.848 +0.000 0000 0 +15.390 -29.481 +13.840 -30.524 +14.615 -30.179 +14.615 -30.222
03=AX_ 02 +17.307 -38.126 168.724 -1.000 0000 0 +17.307 -38.126 +17.307 -38.126
04=HS_ 03 -24.415 -60.480 146.370 +0.000 0000 0 -23.664 -59.702 -25.165 -61.258 -24.415 -60.202 -24.415 -60.758

20220415.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 →

2022/20220415_bc · BC · 6 frames · 128.6 MB · 10:23:00–10:28:16 UT

10:24:06 UT · 40 ms

10:23:00 UT · 40 ms

10:24:59 UT · 40 ms

10:28:16 UT · 60 ms · over-exposed

10:27:33 UT · 60 ms · over-exposed

10:26:45 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.