Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 9 August 2024

‹ 08.08.2024 2024 10.08.2024 ›

Photosphere sunspot drawing and RDS evaluation

09.08.2024 photosphere drawing

High-resolution scan (3230 px)

Time
10:35 UT
Observer
Ergün EGE
g
13
f
137
R
267
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 5Group 1 · BXO – 5 Group 2 · CAO – 7Group 2 · CAO – 7 Group 3 · DSI – 7Group 3 · DSI – 7 Group 4 · CAO – 4Group 4 · CAO – 4 Group 5 · AX_ – 4Group 5 · AX_ – 4 Group 6 · HK_ – 2Group 6 · HK_ – 2 Group 7 · HS_ – 1Group 7 · HS_ – 1 Group 8 · EAC – 21Group 8 · EAC – 21 Group 9 · EAC – 28Group 9 · EAC – 28 Group 10 · BXO – 3Group 10 · BXO – 3 Group 11 · CAI – 10Group 11 · CAI – 10 Group 12 · EKI – 32Group 12 · EKI – 32 Group 13 · CAI – 13Group 13 · CAI – 13
RDS data file (.gzd) 
[Gözlem]
Tarih=9.08.2024
Saat=10:35
Gözlemci=Ergün EGE
KontrolEden=Ergün EGE
Durumaçısı=14.18
Enlemaçısı=6.35
Boylamaçısı=183.43
Boylamfark=1
GKalite=3
GDurum=B.A , K.T
Kuzeyaçısı=-0.5
Sırano=20057
AyRasatNo=9
RasatÖnceki=08.08.2024
RasatSonraki=10.08.2024

[Leke Grupları]
Grupsayısı=13:6:7
LekeSayısı=137:29:108
RölatifSayı=267:89:178
01=BXO 05 +18.240 +49.857 233.287 +0.000 0000 0 +19.114 +51.531 +16.934 +48.184 +18.240 +51.331 +18.240 +48.384
02=CAO 07 +10.227 -11.860 171.570 +0.000 0000 0 +12.158 -08.605 +08.297 -15.115 +10.227 -08.805 +10.227 -14.915
03=DSI 07 +15.258 -21.212 162.218 +0.000 0000 0 +17.107 -18.282 +13.410 -24.142 +15.258 -18.482 +15.258 -23.942
04=CAO 04 +03.540 -43.453 139.977 +0.000 0000 0 +03.885 -41.500 +02.224 -45.856 +03.540 -41.250 +03.540 -45.656
05=AX_ 04 +01.400 -54.593 128.837 +0.000 0000 0 +02.530 -53.280 +00.271 -55.907 +00.000 +00.000 +00.000 +00.000
06=HK_ 02 +14.898 -68.690 115.361 +0.000 0000 0 +17.146 -64.502 +12.650 -71.637 +14.898 -65.623 +14.898 -71.757
07=HS_ 01 -23.859 +67.191 250.621 +0.000 0000 0 -22.160 +68.557 -25.557 +65.825 -23.859 +68.570 -23.859 +66.325
08=EAC 21 -05.218 +41.498 224.927 +0.000 0000 0 -02.543 +47.160 -07.894 +35.979 -05.218 +46.816 -05.218 +36.179
09=EAC 28 -06.970 +24.438 207.867 +0.000 0000 0 -03.158 +32.179 -10.781 +16.696 -06.970 +31.979 -06.970 +16.896
10=BXO 03 -05.590 -01.458 181.972 +0.000 0000 0 -04.911 +00.268 -06.268 -03.184 -05.590 -00.232 -05.590 -02.684
11=CAI 10 -11.937 -05.118 178.312 +0.000 0000 0 -09.686 -01.845 -14.188 -08.391 -11.937 -02.450 -11.937 -08.191
12=EKI 32 -08.806 -12.821 170.609 +0.000 0000 0 -04.817 -06.195 -12.794 -19.447 -08.806 -06.395 -08.806 -19.247
13=CAI 13 -08.560 -23.802 159.628 +0.000 0000 0 -05.256 -21.339 -10.856 -26.265 -08.560 -21.539 -08.560 -26.650
20240809.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 →

2024/20240809_ee · EE · 6 frames · 128.6 MB · 10:38:12–11:03:34 UT

10:38:12 UT · 30 ms 11:01:44 UT · 30 ms 11:02:33 UT · 40 ms · over-exposed 10:43:24 UT · 40 ms · over-exposed 10:55:35 UT · 50 ms · over-exposed 11:03:34 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.