Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 12 January 2024

‹ 08.01.2024 2024 13.01.2024 ›

Photosphere sunspot drawing and RDS evaluation

12.01.2024 photosphere drawing

High-resolution scan (3231 px)

Time
07:00 UT
Observer
Süleyman FİŞEK
g
10
f
90
R
190
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CHI – 14Group 1 · CHI – 14 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · CSI – 7Group 3 · CSI – 7 Group 4 · CAI – 4Group 4 · CAI – 4 Group 5 · BXI – 4Group 5 · BXI – 4 Group 6 · FSC – 30Group 6 · FSC – 30 Group 7 · BXI – 17Group 7 · BXI – 17 Group 8 · BXO – 4Group 8 · BXO – 4 Group 9 · CHO – 5Group 9 · CHO – 5 Group 10 · DHO – 4Group 10 · DHO – 4
RDS data file (.gzd) 
[Gözlem]
Tarih=12.01.2024
Saat=07:00
Gözlemci=Süleyman FİŞEK
KontrolEden=Burçin TANIK
Durumaçısı=-3.13
Enlemaçısı=-4.2
Boylamaçısı=78.73
Boylamfark=3
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.5
Sırano=19899
AyRasatNo=4
RasatÖnceki=08.01.2024
RasatSonraki=13.01.2024

[Leke Grupları]
Grupsayısı=10:5:5
LekeSayısı=90:30:60
RölatifSayı=190:80:110
01=CHI 14 +09.532 +58.802 137.532 30.430 0000 0 +12.216 +63.793 +06.848 +53.810 +07.469 +61.663 +10.816 +55.947
02=AX_ 01 +17.668 -01.470 077.683 -1.000 0000 0 +17.668 -01.470 +17.668 -01.470
03=CSI 07 +18.362 -16.698 062.320 +0.000 0000 0 +19.129 -12.714 +17.595 -20.682 +18.362 -13.214 +18.362 -20.182
04=CAI 04 +11.400 -52.140 026.716 29.759 0000 0 +13.290 -49.861 +09.771 -54.167 +12.187 -50.762 +10.543 -53.640
05=BXI 04 +24.877 -61.110 017.719 +0.000 0000 0 +26.770 -55.847 +22.983 -66.175 +24.877 -56.470 +24.877 -65.975
06=FSC 30 -18.467 +08.144 086.874 19.977 0000 0 -14.190 +17.244 -22.744 -00.956 -17.928 +11.703 -22.206 -00.170
07=BXI 17 -23.341 -20.101 058.629 +0.000 0000 0 -21.318 -16.311 -25.364 -23.891 -23.341 -16.511 -23.341 -23.691
08=BXO 04 -15.988 -31.589 047.141 +0.000 0000 0 -14.271 -27.583 -17.704 -35.594 -15.988 -27.783 -15.988 -35.394
09=CHO 05 -06.230 -40.758 037.972 27.726 0000 0 -03.555 -36.256 -08.906 -45.261 -05.760 -37.751 -08.389 -44.750
10=DHO 04 -19.629 -72.766 005.964 15.288 0000 0 -17.957 -68.245 -21.302 -77.287 -20.850 -70.296 -18.686 -75.422
20240112.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 →

2024/20240112_sf · SF · 3 frames · 64.3 MB · 07:07:04–07:11:00 UT

07:11:00 UT · 40 ms 07:10:02 UT · 70 ms · over-exposed 07:07:04 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.