Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 20 May 2022

‹ 19.05.2022 2022 21.05.2022 ›

Photosphere sunspot drawing and RDS evaluation

20.05.2022 photosphere drawing

High-resolution scan (3231 px)

Time
07:00 UT
Observer
Süleyman FİŞEK
g
8
f
71
R
151
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · CSO – 5Group 2 · CSO – 5 Group 3 · HK_ – 24Group 3 · HK_ – 24 Group 4 · CRI – 11Group 4 · CRI – 11 Group 5 · BXO – 4Group 5 · BXO – 4 Group 6 · BXO – 3Group 6 · BXO – 3 Group 7 · BXI – 18Group 7 · BXI – 18 Group 8 · CSO – 5Group 8 · CSO – 5
RDS data file (.gzd) 
[Gözlem]
Tarih=20.05.2022
Saat=07:00
Gözlemci=Süleyman FİŞEK
KontrolEden=Ergün EGE
Durumaçısı=-19.44
Enlemaçısı=-2.09
Boylamaçısı=105.82
Boylamfark=3
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.6
Sırano=19437
AyRasatNo=17
RasatÖnceki=19.05.2022
RasatSonraki=21.05.2022

[Leke Grupları]
Grupsayısı=8:5:3
LekeSayısı=71:45:26
RölatifSayı=151:95:56
01=AX_ 01 +18.152 +19.320 125.140 -1.000 0000 0 +18.152 +19.320 +18.152 +19.320
02=CSO 05 +13.367 +02.936 108.756 05.511 0000 0 +14.290 +05.980 +12.444 +00.773 +13.163 +04.461 +13.468 +01.296
03=HK_ 24 +21.320 -01.915 103.905 +0.000 0000 0 +23.653 +03.938 +18.986 -07.769 +21.320 +03.438 +21.320 -07.268
04=CRI 11 +13.210 -21.916 083.904 +0.000 0000 0 +16.152 -16.539 +10.268 -27.294 +13.210 -16.739 +13.210 -27.940
05=BXO 04 +11.735 -64.646 041.174 +0.000 0000 0 +13.953 -62.191 +09.518 -67.102 +11.735 -62.391 +11.735 -66.902
06=BXO 03 -23.441 +78.645 184.465 +0.000 0000 0 -22.540 +81.185 -24.828 +76.106 -23.441 +80.985 -23.441 +76.306
07=BXI 18 -15.664 +18.420 124.240 +0.000 0000 0 -12.915 +25.142 -18.413 +11.698 -15.664 +24.942 -15.664 +11.898
08=CSO 05 -18.653 -32.346 073.474 +0.000 0000 0 -17.663 -27.387 -19.642 -37.305 -18.653 -27.587 -18.653 -37.105
20220520.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 →

2022/20220520_sf · SF · 8 frames · 171.4 MB · 07:26:11–07:46:59 UT

07:43:00 UT · 30 ms 07:38:40 UT · 30 ms 07:45:06 UT · 30 ms 07:26:11 UT · 30 ms 07:40:12 UT · 60 ms · over-exposed 07:27:36 UT · 60 ms · over-exposed 07:36:41 UT · 60 ms · over-exposed 07:46:59 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.