Images 27.12.2022 · Istanbul University Observatory Solar Observations

Solar Images Tuesday, 27 December 2022

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3235 px)

Time: 10:10 UT
Observer: Talar YONTAN
g: 5
f: 76
R: 126
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · FSC – 38

Group 2 · DAO – 7

Group 3 · CSI – 6

Group 4 · EAI – 15

Group 5 · DRO – 10

RDS data file (.gzd)

[Gözlem]
Tarih=27.12.2022
Saat=10:10
Gözlemci=Talar YONTAN
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=4.41
Enlemaçısı=-2.42
Boylamaçısı=65.27
Boylamfark=1
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=0.0
Sırano=19626
AyRasatNo=13
RasatÖnceki=26.12.2022
RasatSonraki=29.12.2022

[Leke Grupları]
Grupsayısı=5:4:1
LekeSayısı=76:66:10
RölatifSayı=126:106:20
01=FSC 38 +21.612 +49.301 114.571 18.670 0000 0 +25.671 +59.284 +17.553 +39.318 +18.675 +57.372 +24.317 +40.373
02=DAO 07 +22.978 +28.963 094.233 52.690 0000 0 +25.738 +31.256 +20.217 +26.671 +20.933 +30.337 +24.726 +27.441
03=CSI 06 +26.400 -22.595 042.675 21.250 0000 0 +28.494 -18.801 +24.305 -26.388 +25.990 -19.520 +27.631 -26.490
04=EAI 15 +20.453 -61.161 004.109 15.541 0000 0 +22.391 -55.656 +18.514 -66.666 +19.307 -57.523 +21.622 -65.881
05=DRO 10 -19.638 -39.570 025.700 +0.000 0000 0 -18.288 -36.502 -20.989 -42.638 -19.638 -36.702 -19.638 -42.438

20221227.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 →

2022/20221227_ty · TY · 9 frames · 192.8 MB · 10:15:39–10:26:59 UT

10:26:59 UT · 30 ms