Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 24 July 2024

‹ 23.07.2024 2024 25.07.2024 ›

Photosphere sunspot drawing and RDS evaluation

24.07.2024 photosphere drawing

High-resolution scan (3231 px)

Time
10:40 UT
Observer
Ergün EGE
g
12
f
49
R
169
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · HS_ – 1Group 3 · HS_ – 1 Group 4 · AX_ – 1Group 4 · AX_ – 1 Group 5 · CSO – 3Group 5 · CSO – 3 Group 6 · DAI – 10Group 6 · DAI – 10 Group 7 · AX_ – 1Group 7 · AX_ – 1 Group 8 · DAC – 18Group 8 · DAC – 18 Group 9 · CAI – 7Group 9 · CAI – 7 Group 10 · CRI – 4Group 10 · CRI – 4 Group 11 · HS_ – 1Group 11 · HS_ – 1 Group 12 · AX_ – 1Group 12 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=24.07.2024
Saat=10:40
Gözlemci=Ergün EGE
KontrolEden=Burçin TANIK
Durumaçısı=7.9
Enlemaçısı=5.2
Boylamaçısı=35.01
Boylamfark=0
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.6
Sırano=20041
AyRasatNo=22
RasatÖnceki=23.07.2024
RasatSonraki=25.07.2024

[Leke Grupları]
Grupsayısı=12:4:8
LekeSayısı=49:4:45
RölatifSayı=169:44:125
01=AX_ 01 +03.767 +39.403 074.413 +0.000 0000 0 +04.119 +39.788 +03.415 +39.180 +03.767 +39.207 +03.767 +39.599
02=AX_ 01 +18.113 +25.493 060.503 +0.000 0000 0 +18.552 +25.832 +17.674 +25.154 +18.113 +25.332 +18.113 +25.654
03=HS_ 01 +03.352 -51.679 343.331 +0.000 0000 0 +04.394 -50.610 +02.310 -52.748 +03.352 -51.110 +03.352 -52.248
04=AX_ 01 +02.675 -60.681 334.329 +0.000 0000 0 +03.211 -60.119 +02.140 -61.244 +02.675 -60.618 +02.675 -60.743
05=CSO 03 -07.513 +61.191 096.201 +0.000 0000 0 -06.392 +65.356 -08.634 +57.250 -07.513 +65.156 -07.513 +57.225
06=DAI 10 -09.808 +46.663 081.673 +0.000 0000 0 -07.607 +51.675 -12.900 +41.650 -09.808 +51.475 -09.808 +41.850
07=AX_ 01 -16.724 +30.311 065.321 +0.000 0000 0 -16.459 +30.588 -16.989 +30.340 -16.724 +29.935 -16.724 +30.687
08=DAC 18 -11.797 -15.600 020.400 +0.000 0000 0 -09.853 -09.942 -13.742 -20.690 -11.797 -10.142 -11.797 -19.869
09=CAI 07 -13.328 -24.211 010.799 +0.000 0000 0 -11.776 -22.587 -14.881 -25.836 -13.328 -22.787 -13.328 -25.636
10=CRI 04 -05.259 -62.356 332.654 +0.000 0000 0 -02.996 -57.382 -07.523 -67.329 -05.259 -57.582 -05.259 -67.129
11=HS_ 01 -11.502 -67.820 327.928 +0.000 0000 0 -10.275 -65.670 -12.729 -68.493 -11.502 -66.909 -11.502 -68.731
12=AX_ 01 -08.586 -75.791 319.219 +0.000 0000 0 -08.363 -75.910 -08.809 -76.490 -08.586 -76.100 -08.586 -75.581
20240724.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 →

2024/20240724_ee · EE · 8 frames · 171.4 MB · 10:49:46–10:57:03 UT

10:51:18 UT · 40 ms 10:49:46 UT · 30 ms 10:54:16 UT · 30 ms 10:55:22 UT · 40 ms 10:52:27 UT · 50 ms · over-exposed 10:56:03 UT · 50 ms · over-exposed 10:53:36 UT · 60 ms · over-exposed 10:57:03 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.