Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Tuesday, 31 May 2022

‹ 30.05.2022 2022 01.06.2022 ›

Photosphere sunspot drawing and RDS evaluation

31.05.2022 photosphere drawing

High-resolution scan (3233 px)

Time
08:39 UT
Observer
Talar YONTAN
g
6
f
24
R
84
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CAI – 10Group 1 · CAI – 10 Group 2 · AX_ – 5Group 2 · AX_ – 5 Group 3 · HS_ – 2Group 3 · HS_ – 2 Group 4 · HS_ – 2Group 4 · HS_ – 2 Group 5 · BXO – 3Group 5 · BXO – 3 Group 6 · AX_ – 2Group 6 · AX_ – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=31.05.2022
Saat=08:39
Gözlemci=Talar YONTAN
KontrolEden=Oğuzhan ÇAKIR
Durumaçısı=-15.68
Enlemaçısı=-0.78
Boylamaçısı=319.37
Boylamfark=2
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=0.0
Sırano=19448
AyRasatNo=28
RasatÖnceki=30.05.2022
RasatSonraki=01.06.2022

[Leke Grupları]
Grupsayısı=6:2:4
LekeSayısı=24:15:9
RölatifSayı=84:35:49
01=CAI 10 +27.738 +67.102 026.472 +0.000 0000 0 +29.369 +72.270 +26.106 +61.934 +27.738 +72.700 +27.738 +62.134
02=AX_ 05 +16.109 +13.205 332.575 +0.000 0000 0 +16.908 +14.548 +15.310 +11.863 +16.109 +14.470 +16.109 +12.363
03=HS_ 02 -12.811 +03.847 323.217 +0.000 0000 0 -11.829 +05.207 -13.793 +02.487 -12.811 +04.707 -12.811 +02.987
04=HS_ 02 -32.454 -04.458 314.912 +0.000 0000 0 -31.466 -03.399 -33.443 -05.518 -32.454 -03.899 -32.454 -05.170
05=BXO 03 -12.750 -17.433 301.937 06.424 0000 0 -11.880 -15.786 -13.620 -19.800 -12.444 -16.159 -12.750 -18.880
06=AX_ 02 -16.359 -25.777 293.593 +0.000 0000 0 -16.570 -25.271 -16.661 -26.284 -16.359 -25.771 -16.359 -25.784
20220531.gzd

Chromosphere (H-α) FITS frames

H-α

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 →

2022/20220531_ty · TY · 7 frames · 150.0 MB · 08:46:30–08:55:56 UT

08:46:30 UT · 30 ms 08:48:34 UT · 30 ms 08:54:48 UT · 30 ms 08:53:56 UT · 30 ms 08:47:32 UT · 60 ms · over-exposed 08:49:57 UT · 60 ms · over-exposed 08:55:56 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.