Images 09.04.2024 · Istanbul University Observatory Solar Observations

Solar Images Tuesday, 9 April 2024

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 07:45 UT
Observer: Ergün EGE
g: 3
f: 11
R: 41
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CHO – 5

Group 2 · AX_ – 1

Group 3 · CSO – 5

RDS data file (.gzd)

[Gözlem]
Tarih=9.04.2024
Saat=07:45
Gözlemci=Ergün EGE
KontrolEden=Korhan YELKENCİ
Durumaçısı=-26.23
Enlemaçısı=-6.02
Boylamaçısı=358.73
Boylamfark=2
GKalite=3
GDurum=
Kuzeyaçısı=-0.4
Sırano=19955
AyRasatNo=8
RasatÖnceki=08.04.2024
RasatSonraki=10.04.2024

[Leke Grupları]
Grupsayısı=3:2:1
LekeSayısı=11:6:5
RölatifSayı=41:26:15
01=CHO 05 +06.945 +01.385 000.115 +0.000 0000 0 +09.870 +03.617 +04.803 -00.847 +06.945 +03.417 +06.945 -00.647
02=AX_ 01 +25.976 -02.900 355.830 +0.000 0000 0 +26.526 -02.596 +25.426 -03.204 +25.976 -03.960 +25.976 -02.704
03=CSO 05 -09.520 -40.892 317.838 +0.000 0000 0 -07.860 -37.246 -10.243 -44.538 -09.520 -37.446 -09.520 -44.338

20240409.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 →

2024/20240409_ee · EE · 10 frames · 214.3 MB · 07:48:17–08:08:37 UT

08:05:44 UT · 30 ms