Images 25.12.2023 · Istanbul University Observatory Solar Observations

Solar Images Monday, 25 December 2023

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 07:40 UT
Observer: Ergün EGE
g: 9
f: 22
R: 112
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HA_ – 1

Group 2 · HA_ – 2

Group 3 · AX_ – 1

Group 4 · AX_ – 1

Group 5 · BXO – 5

Group 6 · BXO – 5

Group 7 · HS_ – 2

Group 8 · HA_ – 2

Group 9 · CSO – 3

RDS data file (.gzd)

[Gözlem]
Tarih=25.12.2023
Saat=07:40
Gözlemci=Ergün EGE
KontrolEden=Korhan YELKENCİ
Durumaçısı=5.53
Enlemaçısı=-2.13
Boylamaçısı=315.43
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.4
Sırano=19890
AyRasatNo=13
RasatÖnceki=24.12.2023
RasatSonraki=26.12.2023

[Leke Grupları]
Grupsayısı=9:6:3
LekeSayısı=22:15:7
RölatifSayı=112:75:37
01=HA_ 01 +06.799 +75.387 030.817 +0.000 0000 0 +07.413 +76.799 +06.185 +73.974 +06.799 +76.299 +06.799 +74.475
02=HA_ 02 +08.959 +68.297 023.727 +0.000 0000 0 +10.341 +69.171 +07.578 +67.422 +08.959 +68.671 +08.959 +67.923
03=AX_ 01 +11.144 +52.270 007.700 +0.000 0000 0 +11.492 +52.893 +10.797 +51.648 +11.144 +52.393 +11.144 +52.147
04=AX_ 01 +13.202 +23.555 338.985 +0.000 0000 0 +13.731 +23.856 +12.674 +23.254 +13.202 +23.356 +13.202 +23.754
05=BXO 05 +07.409 +09.900 324.520 +0.000 0000 0 +08.754 +11.444 +06.640 +06.736 +07.409 +11.244 +07.409 +06.936
06=BXO 05 +14.580 -13.128 302.302 +0.000 0000 0 +15.387 -10.190 +13.772 -16.660 +14.580 -10.390 +14.580 -15.866
07=HS_ 02 -19.216 +33.795 349.225 +0.000 0000 0 -17.752 +35.692 -20.680 +31.898 -19.216 +35.192 -19.216 +32.398
08=HA_ 02 -21.253 +22.274 337.704 +0.000 0000 0 -19.690 +23.530 -22.816 +21.170 -21.253 +22.954 -21.253 +21.594
09=CSO 03 -19.940 -12.487 302.943 +0.000 0000 0 -18.636 -09.969 -21.244 -15.500 -19.940 -10.169 -19.940 -14.805

20231225.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 →

2023/20231225_ee · EE · 10 frames · 214.3 MB · 07:45:32–08:01:22 UT

07:46:46 UT · 40 ms