Images 25.09.2023 · Istanbul University Observatory Solar Observations

Solar Images Monday, 25 September 2023

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3239 px)

Time: 07:55 UT
Observer: Ergün EGE
g: 10
f: 66
R: 166
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 2

Group 2 · DAI – 6

Group 3 · AX_ – 1

Group 4 · AX_ – 4

Group 5 · CSI – 11

Group 6 · HS_ – 2

Group 7 · HR_ – 1

Group 8 · AX_ – 1

Group 9 · DSI – 34

Group 10 · BXO – 4

RDS data file (.gzd)

[Gözlem]
Tarih=25.09.2023
Saat=07:55
Gözlemci=Ergün EGE
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=25.42
Enlemaçısı=6.97
Boylamaçısı=75.08
Boylamfark=2
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.5
Sırano=19832
AyRasatNo=24
RasatÖnceki=24.09.2023
RasatSonraki=26.09.2023

[Leke Grupları]
Grupsayısı=10:7:3
LekeSayısı=66:27:39
RölatifSayı=166:97:69
01=AX_ 02 +06.500 +71.450 146.125 +0.000 0000 0 +06.562 +71.871 +05.538 +70.219 +06.500 +71.776 +06.500 +71.124
02=DAI 06 +29.726 +70.256 145.336 +0.000 0000 0 +31.929 +76.506 +27.524 +64.700 +29.726 +76.306 +29.726 +64.207
03=AX_ 01 +07.528 +58.519 133.599 +0.000 0000 0 +07.822 +59.130 +07.233 +58.240 +07.528 +58.464 +07.528 +58.574
04=AX_ 04 +12.936 +36.220 111.300 +0.000 0000 0 +13.508 +37.347 +12.364 +35.930 +12.936 +36.429 +12.936 +36.120
05=CSI 11 +10.395 +26.220 101.102 +0.000 0000 0 +12.475 +29.714 +08.316 +22.331 +10.395 +29.514 +10.395 +22.531
06=HS_ 02 +18.674 +07.846 082.926 +0.000 0000 0 +19.445 +08.327 +17.902 +07.364 +18.674 +07.828 +18.674 +07.865
07=HR_ 01 +12.242 -82.489 352.591 +0.000 0000 0 +12.841 -81.345 +11.644 -83.634 +12.242 -81.844 +12.242 -83.133
08=AX_ 01 -23.478 +23.663 098.743 +0.000 0000 0 -23.123 +23.924 -23.832 +23.403 -23.478 +23.424 -23.478 +23.903
09=DSI 34 -12.665 -00.715 074.365 +0.000 0000 0 -08.706 +04.488 -16.623 -05.918 -12.665 +04.288 -12.665 -05.718
10=BXO 04 -21.629 -18.135 056.945 +0.000 0000 0 -20.144 -16.135 -23.114 -20.135 -21.629 -16.335 -21.629 -19.935

20230925.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 →

2023/20230925_ee · EE · 10 frames · 214.3 MB · 07:45:12–08:01:52 UT

07:46:20 UT · 40 ms