Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 24 October 2024

‹ 23.10.2024 2024 25.10.2024 ›

Photosphere sunspot drawing and RDS evaluation

24.10.2024 photosphere drawing

High-resolution scan (3231 px)

Time
06:55 UT
Observer
Süleyman FİŞEK
g
10
f
48
R
148
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · AX_ – 2Group 2 · AX_ – 2 Group 3 · AX_ – 4Group 3 · AX_ – 4 Group 4 · CAI – 6Group 4 · CAI – 6 Group 5 · CRO – 2Group 5 · CRO – 2 Group 6 · BXI – 17Group 6 · BXI – 17 Group 7 · HH_ – 2Group 7 · HH_ – 2 Group 8 · CHO – 2Group 8 · CHO – 2 Group 9 · DHC – 6Group 9 · DHC – 6 Group 10 · EHI – 6Group 10 · EHI – 6
RDS data file (.gzd) 
[Gözlem]
Tarih=24.10.2024
Saat=06:55
Gözlemci=Süleyman FİŞEK
KontrolEden=Ergün EGE
Durumaçısı=25.48
Enlemaçısı=5.1
Boylamaçısı=262.28
Boylamfark=3
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.5
Sırano=20127
AyRasatNo=20
RasatÖnceki=23.10.2024
RasatSonraki=25.10.2024

[Leke Grupları]
Grupsayısı=10:0:10
LekeSayısı=48:0:48
RölatifSayı=148:0:148
01=AX_ 01 -05.907 +75.316 337.596 -1.000 0000 0 -05.907 +75.316 -05.907 +75.316
02=AX_ 02 -08.208 +52.877 315.157 +0.000 0000 0 -07.859 +54.530 -08.556 +51.701 -08.208 +53.792 -08.208 +51.962
03=AX_ 04 -18.962 +22.273 284.553 +0.000 0000 0 -18.126 +22.977 -19.797 +21.569 -18.962 +22.477 -18.962 +22.690
04=CAI 06 -08.237 -02.900 259.380 +0.000 0000 0 -06.630 +00.926 -09.845 -06.726 -08.237 +00.726 -08.237 -06.526
05=CRO 02 -21.107 -19.325 242.955 +0.000 0000 0 -20.331 -17.782 -21.883 -20.867 -21.107 -18.283 -21.107 -20.368
06=BXI 17 -12.289 -28.138 234.142 +0.000 0000 0 -10.884 -31.888 -13.694 -24.389 -12.289 -24.589 -12.289 -31.688
07=HH_ 02 -10.114 -44.114 218.166 +0.000 0000 0 -08.647 -42.532 -11.581 -45.695 -10.114 -43.320 -10.114 -45.195
08=CHO 02 -14.265 -58.610 203.670 +0.000 0000 0 -12.315 -62.766 -16.215 -54.454 -14.265 -54.654 -14.265 -62.566
09=DHC 06 -16.686 -67.695 194.585 +0.000 0000 0 -14.267 -70.198 -19.105 -65.191 -16.686 -65.391 -16.686 -69.998
10=EHI 06 -16.832 -78.240 184.400 +0.000 0000 0 -14.347 -72.759 -19.317 -83.721 -16.832 -72.959 -16.832 -83.521
20241024.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 →

2024/20241024_sf · SF · 6 frames · 128.6 MB · 07:38:05–07:45:12 UT

07:38:05 UT · 40 ms 07:42:35 UT · 40 ms 07:44:28 UT · 40 ms 07:40:34 UT · 70 ms · over-exposed 07:43:42 UT · 70 ms · over-exposed 07:45:12 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.