Images 04.07.2023 · Istanbul University Observatory Solar Observations

Solar Images Tuesday, 4 July 2023

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3232 px)

Time: 08:10 UT
Observer: Korhan YELKENCİ
g: 9
f: 80
R: 170
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · EKC – 13

Group 2 · CAI – 10

Group 3 · CSI – 5

Group 4 · AX_ – 2

Group 5 · EAI – 17

Group 6 · DAI – 9

Group 7 · DSI – 22

Group 8 · AX_ – 1

Group 9 · HS_ – 1

RDS data file (.gzd)

[Gözlem]
Tarih=4.07.2023
Saat=08:10
Gözlemci=Korhan YELKENCİ
KontrolEden=Olcay PLEVNE
Durumaçısı=-1.32
Enlemaçısı=3.18
Boylamaçısı=92.07
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.4
Sırano=19753
AyRasatNo=4
RasatÖnceki=03.07.2023
RasatSonraki=05.07.2023

[Leke Grupları]
Grupsayısı=9:3:6
LekeSayısı=80:28:52
RölatifSayı=170:58:112
01=EKC 13 +17.446 +71.921 163.991 27.900 0000 0 +21.628 +80.270 +13.264 +63.571 +21.414 +79.614 +13.464 +63.771
02=CAI 10 +22.597 -29.746 062.324 47.124 0000 0 +25.117 -27.385 +20.770 -32.106 +24.917 -27.585 +20.277 -31.906
03=CSI 05 +22.225 -56.481 035.589 13.749 0000 0 +23.454 -52.590 +20.997 -60.904 +23.254 -52.259 +21.197 -60.704
04=AX_ 02 -17.507 +19.283 111.353 +0.000 0000 0 -16.538 +19.598 -18.475 +18.968 -17.507 +19.980 -17.507 +19.468
05=EAI 17 -06.210 +00.669 092.739 13.231 0000 0 -04.323 +07.299 -07.718 -05.960 -04.523 +07.990 -07.518 -05.760
06=DAI 09 -20.627 -23.311 068.759 14.819 0000 0 -19.295 -18.800 -21.958 -27.821 -19.495 -19.000 -21.758 -27.593
07=DSI 22 -13.571 -25.873 066.197 31.505 0000 0 -10.252 -20.479 -16.890 -31.267 -10.452 -20.679 -16.690 -30.953
08=AX_ 01 -08.580 -39.569 052.501 -1.000 0000 0 -08.580 -39.569 -08.580 -39.569
09=HS_ 01 -08.806 -84.202 007.868 +0.000 0000 0 -07.819 -82.377 -09.792 -86.260 -08.806 -82.761 -08.806 -85.644

20230704.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 →

2023/20230704_ky · KY · 14 frames · 299.9 MB · 08:28:45–08:35:15 UT

08:32:45 UT · 40 ms