Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 12 October 2023

‹ 11.10.2023 2023 13.10.2023 ›

Photosphere sunspot drawing and RDS evaluation

12.10.2023 photosphere drawing

High-resolution scan (3230 px)

Time
07:20 UT
Observer
Burçin TANIK
g
7
f
46
R
116
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 2Group 1 · BXO – 2 Group 2 · CSI – 4Group 2 · CSI – 4 Group 3 · CSI – 7Group 3 · CSI – 7 Group 4 · CSI – 12Group 4 · CSI – 12 Group 5 · HH_ – 3Group 5 · HH_ – 3 Group 6 · ESI – 8Group 6 · ESI – 8 Group 7 · DSI – 10Group 7 · DSI – 10
RDS data file (.gzd) 
[Gözlem]
Tarih=12.10.2023
Saat=07:20
Gözlemci=Burçin TANIK
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=26.25
Enlemaçısı=6.1
Boylamaçısı=211.09
Boylamfark=3
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.8
Sırano=19845
AyRasatNo=10
RasatÖnceki=11.10.2023
RasatSonraki=13.10.2023

[Leke Grupları]
Grupsayısı=7:5:2
LekeSayısı=46:28:18
RölatifSayı=116:78:38
01=BXO 02 +14.384 +04.877 215.967 +0.000 0000 0 +14.796 +06.695 +13.972 +03.580 +14.384 +05.934 +14.384 +03.819
02=CSI 04 +08.666 -01.914 209.176 +0.000 0000 0 +09.497 +00.855 +07.835 -04.684 +08.666 +00.655 +08.666 -04.484
03=CSI 07 +18.378 -22.680 189.220 21.430 0000 0 +19.764 -25.780 +16.991 -19.580 +17.479 -19.815 +19.133 -24.120
04=CSI 12 +04.920 -45.690 166.210 +0.000 0000 0 +05.825 -41.984 +02.359 -48.154 +04.920 -42.184 +04.920 -47.954
05=HH_ 03 +10.610 -64.953 146.137 +0.000 0000 0 +11.511 -63.348 +08.612 -66.557 +10.610 -63.849 +10.610 -66.580
06=ESI 08 -10.383 +21.170 232.107 +0.000 0000 0 -08.867 +15.629 -11.900 +26.406 -10.383 +26.206 -10.383 +15.829
07=DSI 10 -17.240 -31.583 179.507 11.399 0000 0 -15.688 -35.403 -18.359 -27.763 -17.899 -29.317 -16.855 -34.504
20231012.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 →

2023/20231012_bto · BTO · 6 frames · 128.6 MB · 07:53:46–08:00:32 UT

07:58:30 UT · 30 ms 07:56:18 UT · 30 ms 08:00:32 UT · 30 ms 07:59:25 UT · 60 ms · over-exposed 07:57:15 UT · 60 ms · over-exposed 07:53:46 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.