Images 18.09.2023 · Istanbul University Observatory Solar Observations

Solar Images Monday, 18 September 2023

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 06:40 UT
Observer: Ergün EGE
g: 7
f: 25
R: 95
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CAO – 2

Group 2 · AX_ – 3

Group 3 · BXO – 7

Group 4 · CSO – 3

Group 5 · DSO – 6

Group 6 · AX_ – 2

Group 7 · AX_ – 2

RDS data file (.gzd)

[Gözlem]
Tarih=18.09.2023
Saat=06:40
Gözlemci=Ergün EGE
KontrolEden=Korhan YELKENCİ
Durumaçısı=24.5
Enlemaçısı=7.16
Boylamaçısı=168.17
Boylamfark=3
GKalite=3
GDurum=G.T , B.A , K.T
Kuzeyaçısı=0.0
Sırano=19825
AyRasatNo=17
RasatÖnceki=17.09.2023
RasatSonraki=19.09.2023

[Leke Grupları]
Grupsayısı=7:5:2
LekeSayısı=25:21:4
RölatifSayı=95:71:24
01=CAO 02 +23.666 +69.930 237.263 +0.000 0000 0 +24.209 +72.485 +23.123 +65.700 +23.666 +72.823 +23.666 +67.370
02=AX_ 03 +11.825 +41.415 209.585 +0.000 0000 0 +12.686 +42.414 +10.965 +40.416 +00.000 +00.000 +00.000 +00.000
03=BXO 07 +19.805 +24.767 192.937 +0.000 0000 0 +20.791 +27.534 +18.818 +22.000 +19.805 +27.334 +19.805 +22.200
04=CSO 03 +28.925 +02.773 170.943 +0.000 0000 0 +29.884 +05.230 +27.966 +00.523 +28.925 +04.823 +28.925 +00.723
05=DSO 06 +09.552 -63.867 104.303 +0.000 0000 0 +11.600 -58.629 +07.505 -69.105 +09.552 -58.829 +09.552 -68.905
06=AX_ 02 -16.296 +04.354 172.524 +0.000 0000 0 -15.879 +05.640 -16.713 +03.644 -16.296 +04.852 -16.296 +03.856
07=AX_ 02 -23.642 -68.735 099.435 +0.000 0000 0 -22.565 -67.535 -24.720 -69.935 +00.000 +00.000 +00.000 +00.000

20230918.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 →

2023/20230918_ee · EE · 10 frames · 214.3 MB · 06:45:53–07:03:19 UT

07:01:02 UT · 30 ms