Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 15 August 2024

‹ 14.08.2024 2024 16.08.2024 ›

Photosphere sunspot drawing and RDS evaluation

15.08.2024 photosphere drawing

High-resolution scan (3230 px)

Time
08:20 UT
Observer
Süleyman FİŞEK
g
10
f
106
R
206
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · HS_ – 1Group 2 · HS_ – 1 Group 3 · CSO – 4Group 3 · CSO – 4 Group 4 · FKC – 46Group 4 · FKC – 46 Group 5 · AX_ – 1Group 5 · AX_ – 1 Group 6 · FHI – 16Group 6 · FHI – 16 Group 7 · ESC – 19Group 7 · ESC – 19 Group 8 · BXI – 10Group 8 · BXI – 10 Group 9 · CSI – 7Group 9 · CSI – 7 Group 10 · AX_ – 1Group 10 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=15.08.2024
Saat=08:20
Gözlemci=Süleyman FİŞEK
KontrolEden=Süleyman FİŞEK
Durumaçısı=16.24
Enlemaçısı=6.67
Boylamaçısı=105.61
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.7
Sırano=20063
AyRasatNo=15
RasatÖnceki=14.08.2024
RasatSonraki=16.08.2024

[Leke Grupları]
Grupsayısı=10:5:5
LekeSayısı=106:53:53
RölatifSayı=206:103:103
01=AX_ 01 +12.237 +70.395 176.500 -1.000 0000 0 +12.237 +70.395 +12.237 +70.395
02=HS_ 01 +15.708 +58.464 164.740 +0.000 0000 0 +16.765 +59.638 +14.651 +57.290 +15.708 +59.138 +15.708 +57.790
03=CSO 04 +03.968 +28.583 134.193 12.460 0000 0 +05.968 +33.378 +01.969 +23.789 +03.704 +32.557 +05.503 +24.382
04=FKC 46 +15.700 +09.550 115.160 58.730 0000 0 +20.760 +17.920 +11.325 +02.800 +13.116 +10.219 +15.884 +08.536
05=AX_ 01 +28.899 -23.887 081.723 -1.000 0000 0 +28.899 -23.887 +28.899 -23.887
06=FHI 16 -08.520 +61.329 166.939 10.929 0000 0 -05.180 +70.164 -10.924 +52.494 -08.135 +68.280 -09.380 +63.598
07=ESC 19 -21.919 +43.896 149.506 +0.000 0000 0 -19.887 +49.371 -23.951 +38.422 -21.919 +49.171 -21.919 +38.622
08=BXI 10 -12.572 -03.347 102.263 +0.000 0000 0 -07.446 +02.472 -17.698 -09.165 -12.572 +02.272 -12.572 -08.965
09=CSI 07 -05.934 -23.495 082.115 09.626 0000 0 -02.431 -14.418 -09.437 -32.572 -06.645 -16.360 -09.100 -30.676
10=AX_ 01 -17.549 -68.218 037.392 -1.000 0000 0 -17.549 -68.218 -17.549 -68.218
20240815.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 →

2024/20240815_sf · SF · 6 frames · 128.6 MB · 08:27:38–08:35:55 UT

08:27:38 UT · 30 ms 08:32:11 UT · 30 ms 08:35:09 UT · 30 ms 08:30:49 UT · 50 ms · over-exposed 08:32:57 UT · 50 ms · over-exposed 08:35:55 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.