Images 26.05.2022 · Istanbul University Observatory Solar Observations

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 08:35 UT
Observer: Korhan YELKENCİ
g: 7
f: 23
R: 93
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HK_ – 4

Group 2 · HA_ – 2

Group 3 · HK_ – 10

Group 4 · AX_ – 3

Group 5 · AX_ – 1

Group 6 · DSO – 2

Group 7 · HS_ – 1

RDS data file (.gzd)

[Gözlem]
Tarih=26.05.2022
Saat=08:35
Gözlemci=Korhan YELKENCİ
KontrolEden=Olcay PLEVNE
Durumaçısı=-17.46
Enlemaçısı=-1.38
Boylamaçısı=25.57
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.6
Sırano=19443
AyRasatNo=23
RasatÖnceki=25.05.2022
RasatSonraki=27.05.2022

[Leke Grupları]
Grupsayısı=7:4:3
LekeSayısı=23:19:4
RölatifSayı=93:59:34
01=HK_ 04 +22.268 +76.738 102.308 +0.000 0000 0 +24.827 +82.310 +19.709 +71.446 +22.268 +81.670 +22.268 +71.806
02=HA_ 02 +10.383 +66.550 092.120 +0.000 0000 0 +11.225 +68.820 +09.542 +65.180 +10.383 +67.870 +10.383 +65.230
03=HK_ 10 +11.930 +60.163 085.733 +0.000 0000 0 +12.450 +63.350 +09.735 +57.290 +11.930 +62.693 +11.930 +57.633
04=AX_ 03 +11.906 -26.937 358.633 +0.000 0000 0 +12.287 -26.130 +11.525 -27.744 +11.906 -26.630 +11.906 -27.244
05=AX_ 01 -21.700 -15.582 009.988 -1.000 0000 0 -21.700 -15.582 -21.700 -15.582
06=DSO 02 -14.850 -61.140 324.430 35.823 0000 0 -12.530 -59.600 -15.640 -63.219 -12.730 -59.260 -15.440 -63.190
07=HS_ 01 -33.665 -65.328 320.242 +0.000 0000 0 -32.633 -63.665 -34.698 -66.991 -33.665 -64.165 -33.665 -66.491

20220526.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 →

2022/20220526_ky · KY · 24 frames · 514.2 MB · 08:56:40–09:08:24 UT