Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 23 January 2025

‹ 22.01.2025 2025 24.01.2025 ›

Photosphere sunspot drawing and RDS evaluation

23.01.2025 photosphere drawing

High-resolution scan (3231 px)

Time
11:10 UT
Observer
Süleyman FİŞEK
g
11
f
129
R
239
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DHI – 5Group 1 · DHI – 5 Group 2 · CSI – 6Group 2 · CSI – 6 Group 3 · DKI – 18Group 3 · DKI – 18 Group 4 · HA_ – 5Group 4 · HA_ – 5 Group 5 · AX_ – 2Group 5 · AX_ – 2 Group 6 · FKC – 37Group 6 · FKC – 37 Group 7 · CRI – 6Group 7 · CRI – 6 Group 8 · CSI – 8Group 8 · CSI – 8 Group 9 · CRI – 16Group 9 · CRI – 16 Group 10 · ESI – 25Group 10 · ESI – 25
RDS data file (.gzd) 
[Gözlem]
Tarih=23.01.2025
Saat=11:10
Gözlemci=Süleyman FİŞEK
KontrolEden=Korhan YELKENCİ
Durumaçısı=-8.62
Enlemaçısı=-5.35
Boylamaçısı=140.87
Boylamfark=0
GKalite=3
GDurum=B.A , K.T
Kuzeyaçısı=-0.7
Sırano=20179
AyRasatNo=15
RasatÖnceki=22.01.2025
RasatSonraki=24.01.2025

[Leke Grupları]
Grupsayısı=11:5:6
LekeSayısı=129:36:93
RölatifSayı=239:86:153
01=DHI 05 +18.381 +64.650 204.935 +0.000 0000 0 +20.722 +67.611 +16.410 +60.519 +18.381 +67.411 +18.381 +60.719
02=CSI 06 +17.626 +32.984 173.854 +0.000 0000 0 +18.645 +34.452 +16.607 +31.516 +17.626 +34.252 +17.626 +31.716
03=DKI 18 +13.726 +26.296 167.166 44.141 0000 0 +16.221 +29.152 +11.230 +23.441 +14.779 +27.380 +12.490 +24.564
04=HA_ 05 +13.572 +19.290 159.899 -1.000 0000 0 +15.174 +20.373 +11.969 +17.685
05=AX_ 02 +15.655 +05.718 146.588 +0.000 0000 0 +16.143 +05.993 +15.167 +05.444 +15.655 +05.492 +15.655 +05.944
06=FKC 37 -09.895 +38.557 179.427 +0.000 0000 0 -05.420 +47.711 -14.749 +29.402 -09.895 +47.511 -09.895 +29.602
07=CRI 06 -15.598 +10.785 151.655 +0.000 0000 0 -14.753 +14.725 -16.444 +06.845 -15.598 +14.525 -15.598 +07.450
08=CSI 08 -15.672 +02.287 143.157 +0.000 0000 0 -13.640 +00.690 -17.703 +03.884 -15.672 +03.684 -15.672 +00.890
09=CRI 16 -18.924 -03.429 137.441 +0.000 0000 0 -16.898 -01.480 -20.950 -05.810 -18.924 -01.248 -18.924 -05.610
10=ESI 25 -05.666 -12.130 128.740 +0.000 0000 0 -04.211 -06.779 -07.121 -17.481 -05.666 -06.979 -05.666 -17.281
11=AX_ 01 -16.298 -56.448 084.422 -1.000 0000 0 -16.298 -56.448 -16.298 -56.448
20250123.gzd

Chromosphere (H-α) FITS frames

No chromosphere observation for this day.

Coronado H-α animations from frame sequences

No Coronado observation for this day.