Images 15.07.2023 · Istanbul University Observatory Solar Observations

Solar Images Saturday, 15 July 2023

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3231 px)

Time: 08:25 UT
Observer: Hikmet ÇAKMAK
g: 7
f: 58
R: 128
Seeing: 4 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DAI – 5

Group 2 · FKI – 20

Group 3 · DAI – 9

Group 4 · HK_ – 18

Group 5 · CRO – 2

Group 6 · AX_ – 2

Group 7 · AX_ – 2

RDS data file (.gzd)

[Gözlem]
Tarih=15.07.2023
Saat=08:25
Gözlemci=Hikmet ÇAKMAK
KontrolEden=Burçin TANIK
Durumaçısı=3.63
Enlemaçısı=4.31
Boylamaçısı=306.35
Boylamfark=2
GKalite=4
GDurum=G.T , H.S
Kuzeyaçısı=-0.5
Sırano=19763
AyRasatNo=14
RasatÖnceki=14.07.2023
RasatSonraki=16.07.2023

[Leke Grupları]
Grupsayısı=7:3:4
LekeSayısı=58:34:24
RölatifSayı=128:64:64
01=DAI 05 +10.745 +73.261 019.611 20.380 0000 0 +12.912 +79.195 +08.578 +67.327 +09.300 +76.300 +12.960 +67.712
02=FKI 20 +23.840 -37.642 268.708 09.473 0000 0 +26.115 -29.199 +20.540 -46.850 +21.982 -30.702 +24.268 -44.543
03=DAI 09 +08.528 -63.546 242.804 17.967 0000 0 +11.388 -58.774 +05.669 -68.319 +07.537 -60.199 +09.803 -67.208
04=HK_ 18 -21.661 +35.427 341.777 +0.000 0000 0 -18.289 +40.270 -25.340 +30.828 -21.661 +39.648 -21.661 +31.206
05=CRO 02 -14.659 -17.865 288.485 +0.000 0000 0 -13.952 -16.301 -15.366 -19.430 -14.659 -16.800 -14.659 -18.930
06=AX_ 02 -21.562 -25.815 280.535 +0.000 0000 0 -20.759 -25.164 -22.365 -26.467 -21.562 -25.663 -21.562 -25.967
07=AX_ 02 -07.316 -63.545 242.805 +0.000 0000 0 -06.661 -62.841 -07.971 -64.249 -07.316 -63.341 -07.316 -63.749

20230715.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 →

2023/20230715_hc · HC · 9 frames · 192.8 MB · 08:28:49–09:31:56 UT

08:28:49 UT · 30 ms