Images 17.09.2022 · Istanbul University Observatory Solar Observations

Solar Images Saturday, 17 September 2022

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 08:25 UT
Observer: Hikmet ÇAKMAK
g: 7
f: 50
R: 120
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 2

Group 2 · CAI – 10

Group 3 · AX_ – 1

Group 4 · AX_ – 3

Group 5 · BXO – 10

Group 6 · AX_ – 1

Group 7 · EAC – 23

RDS data file (.gzd)

[Gözlem]
Tarih=17.09.2022
Saat=08:25
Gözlemci=Hikmet ÇAKMAK
KontrolEden=Ergün EGE
Durumaçısı=24.4
Enlemaçısı=7.17
Boylamaçısı=317.96
Boylamfark=2
GKalite=3
GDurum=G.T , H.S
Kuzeyaçısı=-0.4
Sırano=19553
AyRasatNo=16
RasatÖnceki=16.09.2022
RasatSonraki=18.09.2022

[Leke Grupları]
Grupsayısı=7:1:6
LekeSayısı=50:2:48
RölatifSayı=120:12:108
01=AX_ 02 +12.350 +28.160 345.976 +0.000 0000 0 +12.444 +28.967 +11.626 +27.650 +12.350 +28.319 +12.350 +28.100
02=CAI 10 -23.571 +34.610 352.570 03.670 0000 0 -22.360 +39.224 -24.783 +29.996 -23.330 +38.900 -23.795 +30.808
03=AX_ 01 -10.948 +27.762 345.722 -1.000 0000 0 -10.948 +27.762 -10.948 +27.762
04=AX_ 03 -23.939 +24.752 342.712 +0.000 0000 0 -23.118 +25.755 -24.759 +23.749 +00.000 +00.000 +00.000 +00.000
05=BXO 10 -14.479 +11.785 329.745 15.910 0000 0 -13.610 +14.102 -15.897 +09.469 -14.943 +13.445 -13.950 +09.760
06=AX_ 01 -14.295 -03.428 314.532 -1.000 0000 0 -14.295 -03.428 -14.295 -03.428
07=EAC 23 -24.813 -21.195 296.765 14.310 0000 0 -22.990 -14.929 -27.527 -27.460 -26.318 -16.509 -23.952 -25.833

20220917.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 →

2022/20220917_hc · HC · 10 frames · 214.3 MB · 08:26:21–09:19:07 UT

08:28:10 UT · 30 ms