Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 23 May 2022

‹ 22.05.2022 2022 24.05.2022 ›

Photosphere sunspot drawing and RDS evaluation

23.05.2022 photosphere drawing

High-resolution scan (3230 px)

Time
07:30 UT
Observer
Ergün EGE
g
9
f
58
R
148
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 2Group 1 · BXI – 2 Group 2 · EKC – 19Group 2 · EKC – 19 Group 3 · EKC – 17Group 3 · EKC – 17 Group 4 · CRI – 5Group 4 · CRI – 5 Group 5 · BXI – 4Group 5 · BXI – 4 Group 6 · BXI – 4Group 6 · BXI – 4 Group 7 · CSI – 4Group 7 · CSI – 4 Group 8 · AX_ – 2Group 8 · AX_ – 2 Group 9 · HS_ – 1Group 9 · HS_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=23.05.2022
Saat=07:30
Gözlemci=Ergün EGE
KontrolEden=Korhan YELKENCİ
Durumaçısı=-18.48
Enlemaçısı=-1.74
Boylamaçısı=65.75
Boylamfark=2
GKalite=3
GDurum=H.S , K.T
Kuzeyaçısı=-0.4
Sırano=19440
AyRasatNo=20
RasatÖnceki=22.05.2022
RasatSonraki=24.05.2022

[Leke Grupları]
Grupsayısı=9:5:4
LekeSayısı=58:47:11
RölatifSayı=148:97:51
01=BXI 02 +18.819 +59.440 125.190 +0.000 0000 0 +19.694 +63.257 +17.944 +55.622 +18.819 +63.570 +18.819 +55.822
02=EKC 19 +21.931 +37.125 102.875 +0.000 0000 0 +24.473 +43.781 +19.389 +30.470 +21.931 +43.581 +21.931 +30.670
03=EKC 17 +12.900 +18.890 083.839 +0.000 0000 0 +14.640 +23.839 +09.379 +12.338 +12.900 +23.639 +12.900 +12.538
04=CRI 05 +13.110 -28.517 037.233 +0.000 0000 0 +14.650 -26.649 +12.155 -30.385 +13.110 -26.849 +13.110 -30.185
05=BXI 04 +12.501 -64.822 000.928 +0.000 0000 0 +13.770 -61.770 +11.232 -67.874 +12.501 -61.970 +12.501 -67.674
06=BXI 04 -17.144 +60.342 126.920 +0.000 0000 0 -16.429 +63.678 -17.859 +57.500 -17.144 +62.931 -17.144 +57.753
07=CSI 04 -18.992 +08.382 074.132 +0.000 0000 0 -17.733 +12.222 -20.251 +04.543 -18.992 +12.220 -18.992 +04.743
08=AX_ 02 -14.642 +05.867 071.617 +0.000 0000 0 -14.500 +06.477 -15.233 +05.257 -14.642 +05.977 -14.642 +05.757
09=HS_ 01 -21.196 -54.386 011.364 +0.000 0000 0 -20.571 -53.413 -21.822 -55.359 -21.196 -53.913 -21.196 -54.859
20220523.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 →

2022/20220523_ee · EE · 6 frames · 128.6 MB · 07:33:00–07:54:22 UT

07:53:04 UT · 50 ms 07:53:43 UT · 40 ms 07:54:22 UT · 30 ms 07:33:00 UT · 30 ms · over-exposed 07:36:24 UT · 50 ms · over-exposed 07:34:47 UT · 40 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.