Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 15 July 2024

‹ 14.07.2024 2024 16.07.2024 ›

Photosphere sunspot drawing and RDS evaluation

15.07.2024 photosphere drawing

High-resolution scan (3229 px)

Time
08:40 UT
Observer
Ergün EGE
g
12
f
79
R
199
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · DAO – 4Group 2 · DAO – 4 Group 3 · CSO – 5Group 3 · CSO – 5 Group 4 · AX_ – 3Group 4 · AX_ – 3 Group 5 · AX_ – 1Group 5 · AX_ – 1 Group 6 · ESO – 2Group 6 · ESO – 2 Group 7 · FKI – 19Group 7 · FKI – 19 Group 8 · DRI – 24Group 8 · DRI – 24 Group 9 · DSC – 6Group 9 · DSC – 6 Group 10 · CRO – 2Group 10 · CRO – 2 Group 11 · CSI – 5Group 11 · CSI – 5 Group 12 · ESC – 7Group 12 · ESC – 7
RDS data file (.gzd) 
[Gözlem]
Tarih=15.07.2024
Saat=08:40
Gözlemci=Ergün EGE
KontrolEden=Ergün EGE
Durumaçısı=3.98
Enlemaçısı=4.38
Boylamaçısı=155.2
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.5
Sırano=20032
AyRasatNo=13
RasatÖnceki=14.07.2024
RasatSonraki=16.07.2024

[Leke Grupları]
Grupsayısı=12:6:6
LekeSayısı=79:16:63
RölatifSayı=199:76:123
01=AX_ 01 +15.479 +38.428 193.628 +0.000 0000 0 +15.736 +38.892 +15.222 +37.964 +15.479 +38.392 +15.479 +38.464
02=DAO 04 +11.900 +12.952 168.152 +0.000 0000 0 +12.716 +14.774 +09.464 +11.129 +11.900 +14.574 +11.900 +11.329
03=CSO 05 +15.385 -08.633 146.567 +0.000 0000 0 +16.959 -06.890 +13.811 -10.375 +15.385 -07.900 +15.385 -10.175
04=AX_ 03 +13.885 -24.470 130.730 +0.000 0000 0 +14.631 -23.714 +13.138 -25.226 +13.885 -24.214 +13.885 -24.726
05=AX_ 01 +21.600 -63.930 092.107 +0.000 0000 0 +21.868 -62.442 +21.332 -63.745 +21.600 -63.778 +21.600 -64.810
06=ESO 02 +24.124 -82.274 072.926 +0.000 0000 0 +24.847 -76.908 +23.400 -87.641 +24.124 -77.408 +24.124 -87.141
07=FKI 19 -09.580 +60.170 215.217 +0.000 0000 0 -04.753 +69.294 -13.363 +50.739 -09.580 +69.940 -09.580 +50.939
08=DRI 24 -08.619 +06.997 162.197 +0.000 0000 0 -05.442 +11.892 -11.797 +02.102 -08.619 +11.692 -08.619 +02.302
09=DSC 06 -21.360 -01.254 153.946 +0.000 0000 0 -16.890 +02.940 -25.829 -05.447 -21.360 +02.740 -21.360 -05.247
10=CRO 02 -31.643 -46.139 109.610 +0.000 0000 0 -29.725 -39.242 -33.561 -53.350 -31.643 -39.442 -31.643 -52.835
11=CSI 05 -19.796 -48.304 106.896 +0.000 0000 0 -18.742 -43.600 -20.851 -53.547 -19.796 -43.260 -19.796 -53.347
12=ESC 07 -08.313 -64.210 091.179 +0.000 0000 0 -06.646 -57.163 -09.980 -70.879 -08.313 -57.363 -08.313 -70.679
20240715.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 →

2024/20240715_ee · EE · 7 frames · 150.0 MB · 08:40:07–08:55:51 UT

08:54:40 UT · 30 ms 08:40:07 UT · 30 ms 08:55:17 UT · 40 ms 08:41:50 UT · 40 ms 08:43:01 UT · 50 ms · over-exposed 08:55:51 UT · 50 ms · over-exposed 08:44:48 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.