Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 11 August 2024

‹ 10.08.2024 2024 12.08.2024 ›

Photosphere sunspot drawing and RDS evaluation

11.08.2024 photosphere drawing

High-resolution scan (3229 px)

Time
10:20 UT
Observer
Ergün EGE
g
12
f
101
R
221
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 3Group 1 · BXO – 3 Group 2 · HS_ – 1Group 2 · HS_ – 1 Group 3 · AX_ – 4Group 3 · AX_ – 4 Group 4 · CSI – 13Group 4 · CSI – 13 Group 5 · HK_ – 7Group 5 · HK_ – 7 Group 6 · CSO – 2Group 6 · CSO – 2 Group 7 · FSC – 11Group 7 · FSC – 11 Group 8 · BXI – 8Group 8 · BXI – 8 Group 9 · DKI – 32Group 9 · DKI – 32 Group 10 · CAI – 12Group 10 · CAI – 12 Group 11 · CRO – 4Group 11 · CRO – 4 Group 12 · BXO – 4Group 12 · BXO – 4
RDS data file (.gzd) 
[Gözlem]
Tarih=11.08.2024
Saat=10:20
Gözlemci=Ergün EGE
KontrolEden=Korhan YELKENCİ
Durumaçısı=14.89
Enlemaçısı=6.46
Boylamaçısı=157.38
Boylamfark=1
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.3
Sırano=20059
AyRasatNo=11
RasatÖnceki=10.08.2024
RasatSonraki=12.08.2024

[Leke Grupları]
Grupsayısı=12:5:7
LekeSayısı=101:28:73
RölatifSayı=221:78:143
01=BXO 03 +09.874 +14.631 172.110 +0.000 0000 0 +11.519 +17.891 +08.228 +11.372 +09.874 +17.691 +09.874 +11.572
02=HS_ 01 +14.974 +06.483 163.863 +0.000 0000 0 +15.931 +07.711 +14.170 +05.254 +14.974 +07.211 +14.974 +05.754
03=AX_ 04 +17.938 -07.996 149.384 +0.000 0000 0 +18.664 -06.944 +17.213 -09.470 +17.938 -07.233 +17.938 -08.759
04=CSI 13 +01.840 -23.843 133.537 +0.000 0000 0 +04.194 -18.275 -00.515 -29.411 +01.840 -18.475 +01.840 -29.211
05=HK_ 07 +14.655 -42.554 114.826 +0.000 0000 0 +17.274 -40.279 +12.360 -44.829 +14.655 -40.779 +14.655 -44.329
06=CSO 02 -05.850 +68.230 225.403 +0.000 0000 0 -03.947 +72.226 -07.754 +63.820 -05.850 +72.260 -05.850 +64.200
07=FSC 11 -07.900 +51.100 208.381 +0.000 0000 0 -04.783 +59.200 -11.180 +43.000 -07.900 +58.802 -07.900 +43.200
08=BXI 08 -10.330 +22.924 180.304 +0.000 0000 0 -08.582 +24.551 -12.790 +21.297 -10.330 +24.351 -10.330 +21.497
09=DKI 32 -10.200 +12.414 169.794 +0.000 0000 0 -04.353 +17.410 -15.688 +07.417 -10.200 +17.210 -10.200 +07.617
10=CAI 12 -07.536 +02.107 159.487 +0.000 0000 0 -04.376 +05.758 -10.696 -01.543 -07.536 +05.558 -07.536 -01.343
11=CRO 04 -21.741 -08.596 148.784 +0.000 0000 0 -20.555 -06.211 -22.927 -10.981 -21.741 -06.411 -21.741 -10.781
12=BXO 04 -10.646 -55.400 102.376 +0.000 0000 0 -09.908 -51.121 -11.384 -58.887 -10.646 -52.170 -10.646 -58.783
20240811.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 →

2024/20240811_ee · EE · 6 frames · 128.6 MB · 10:21:14–10:41:29 UT

10:21:14 UT · 30 ms 10:39:56 UT · 30 ms 10:23:25 UT · 40 ms · over-exposed 10:40:40 UT · 40 ms 10:41:29 UT · 50 ms · over-exposed 10:30:20 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.