Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 8 August 2024

‹ 07.08.2024 2024 09.08.2024 ›

Photosphere sunspot drawing and RDS evaluation

08.08.2024 photosphere drawing

High-resolution scan (3231 px)

Time
10:35 UT
Observer
Ergün EGE
g
13
f
153
R
283
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 2Group 1 · BXO – 2 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · DSI – 10Group 3 · DSI – 10 Group 4 · DSI – 6Group 4 · DSI – 6 Group 5 · HA_ – 6Group 5 · HA_ – 6 Group 6 · HA_ – 2Group 6 · HA_ – 2 Group 7 · HS_ – 2Group 7 · HS_ – 2 Group 8 · ESC – 41Group 8 · ESC – 41 Group 9 · EAC – 28Group 9 · EAC – 28 Group 10 · AX_ – 3Group 10 · AX_ – 3 Group 11 · CRI – 11Group 11 · CRI – 11 Group 12 · DKI – 27Group 12 · DKI – 27 Group 13 · CRI – 14Group 13 · CRI – 14
RDS data file (.gzd) 
[Gözlem]
Tarih=8.08.2024
Saat=10:35
Gözlemci=Ergün EGE
KontrolEden=Ergün EGE
Durumaçısı=13.81
Enlemaçısı=6.29
Boylamaçısı=196.91
Boylamfark=1
GKalite=3
GDurum=B.A
Kuzeyaçısı=0.2
Sırano=20056
AyRasatNo=8
RasatÖnceki=07.08.2024
RasatSonraki=09.08.2024

[Leke Grupları]
Grupsayısı=13:6:7
LekeSayısı=153:27:126
RölatifSayı=283:87:196
01=BXO 02 +17.422 +37.769 234.679 +0.000 0000 0 +18.378 +40.188 +16.467 +35.350 +17.422 +39.988 +17.422 +35.550
02=AX_ 01 +20.365 +30.710 226.981 +0.000 0000 0 +20.748 +30.570 +19.983 +29.572 +20.365 +30.709 +20.365 +30.711
03=DSI 10 +10.800 -25.607 171.303 +0.000 0000 0 +11.497 -22.869 +08.663 -28.344 +10.800 -23.690 +10.800 -28.144
04=DSI 06 +14.915 -34.844 162.660 +0.000 0000 0 +16.680 -32.255 +13.150 -37.433 +14.915 -32.455 +14.915 -37.233
05=HA_ 06 +03.263 -57.675 139.235 +0.000 0000 0 +04.308 -55.577 +02.219 -59.772 +03.263 -56.770 +03.263 -59.272
06=HA_ 02 +01.214 -69.433 127.477 +0.000 0000 0 +02.310 -68.292 +00.119 -70.574 +01.214 -68.792 +01.214 -70.740
07=HS_ 02 -24.100 +54.713 251.623 +0.000 0000 0 -22.414 +57.800 -25.588 +52.345 -24.100 +56.941 -24.100 +52.486
08=ESC 41 -06.767 +28.790 224.989 +0.000 0000 0 -02.962 +34.136 -10.572 +22.230 -06.767 +33.936 -06.767 +22.223
09=EAC 28 -07.521 +09.908 206.818 +0.000 0000 0 -03.563 +16.440 -11.479 +03.375 -07.521 +16.240 -07.521 +03.575
10=AX_ 03 -05.676 -14.910 182.819 +0.000 0000 0 -04.972 -13.950 -06.381 -15.870 -05.676 -14.450 -05.676 -15.370
11=CRI 11 -10.240 -18.331 178.579 +0.000 0000 0 -07.697 -16.460 -12.350 -20.202 -10.240 -16.660 -10.240 -20.200
12=DKI 27 -11.645 -25.796 171.114 +0.000 0000 0 -05.661 -20.906 -17.630 -30.686 -11.645 -21.106 -11.645 -30.486
13=CRI 14 -07.960 -35.796 161.114 +0.000 0000 0 -04.347 -32.461 -11.573 -39.131 -07.960 -32.660 -07.960 -38.931
20240808.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 →

2024/20240808_ee · EE · 3 frames · 64.3 MB · 10:49:13–10:51:46 UT

10:51:46 UT · 30 ms 10:50:41 UT · 40 ms · over-exposed 10:49:13 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.