Images 26.12.2023 · Istanbul University Observatory Solar Observations

Solar Images Tuesday, 26 December 2023

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 07:40 UT
Observer: Korhan YELKENCİ
g: 9
f: 69
R: 159
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · FAO – 2

Group 2 · BXI – 10

Group 3 · CAI – 12

Group 4 · AX_ – 2

Group 5 · CAI – 11

Group 6 · AX_ – 1

Group 7 · EHI – 14

Group 8 · CHI – 14

Group 9 · BXI – 3

RDS data file (.gzd)

[Gözlem]
Tarih=26.12.2023
Saat=07:40
Gözlemci=Korhan YELKENCİ
KontrolEden=Süleyman FİŞEK
Durumaçısı=5.05
Enlemaçısı=-2.25
Boylamaçısı=302.25
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.5
Sırano=19891
AyRasatNo=14
RasatÖnceki=25.12.2023
RasatSonraki=27.12.2023

[Leke Grupları]
Grupsayısı=9:6:3
LekeSayısı=69:38:31
RölatifSayı=159:98:61
01=FAO 02 +10.422 +74.345 016.595 06.650 0000 0 +11.787 +84.758 +09.570 +63.932 +11.587 +84.558 +09.257 +64.132
02=BXI 10 +13.763 +37.403 339.653 21.349 0000 0 +14.579 +39.182 +12.946 +35.624 +14.379 +38.982 +13.146 +35.824
03=CAI 12 +07.203 +22.468 324.718 26.928 0000 0 +08.935 +25.694 +05.470 +19.243 +08.735 +25.494 +05.670 +19.443
04=AX_ 02 +07.784 +11.555 313.805 +0.000 0000 0 +08.970 +11.791 +07.471 +11.319 +07.784 +11.291 +07.784 +11.819
05=CAI 11 +14.613 -01.484 300.766 09.100 0000 0 +15.433 +02.647 +13.792 -05.615 +15.233 +02.447 +13.992 -05.415
06=AX_ 01 +19.480 -69.542 232.708 -1.000 0000 0 +19.480 -69.542 +19.480 -69.542
07=EHI 14 -20.355 +41.760 343.326 18.530 0000 0 -17.740 +48.775 -22.971 +33.377 -17.969 +48.370 -22.727 +33.577
08=CHI 14 -20.772 -00.974 301.276 29.297 0000 0 -18.345 +03.195 -23.199 -05.143 -18.568 +02.995 -22.999 -04.943
09=BXI 03 -05.498 -20.240 282.100 +0.000 0000 0 -04.886 -17.884 -06.110 -22.595 -05.498 -18.385 -05.498 -22.950

20231226.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 →

2023/20231226_ky · KY · 14 frames · 299.9 MB · 07:56:48–08:03:18 UT

08:00:18 UT · 30 ms