Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Saturday, 27 July 2024

‹ 26.07.2024 2024 28.07.2024 ›

Photosphere sunspot drawing and RDS evaluation

27.07.2024 photosphere drawing

High-resolution scan (3229 px)

Time
10:30 UT
Observer
Burçin TANIK
g
12
f
91
R
211
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · HS_ – 1Group 2 · HS_ – 1 Group 3 · AX_ – 2Group 3 · AX_ – 2 Group 4 · HH_ – 1Group 4 · HH_ – 1 Group 5 · HR_ – 1Group 5 · HR_ – 1 Group 6 · EKC – 33Group 6 · EKC – 33 Group 7 · AX_ – 4Group 7 · AX_ – 4 Group 8 · CRO – 8Group 8 · CRO – 8 Group 9 · ?__ – 3Group 9 · ?__ – 3 Group 10 · DAC – 16Group 10 · DAC – 16 Group 11 · DHI – 7Group 11 · DHI – 7 Group 12 · EAC – 14Group 12 · EAC – 14
RDS data file (.gzd) 
[Gözlem]
Tarih=27.07.2024
Saat=10:30
Gözlemci=Burçin TANIK
KontrolEden=Burçin TANIK
Durumaçısı=9.13
Enlemaçısı=5.45
Boylamaçısı=355.65
Boylamfark=1
GKalite=3
GDurum=G.T
Kuzeyaçısı=0.0
Sırano=20044
AyRasatNo=25
RasatÖnceki=26.07.2024
RasatSonraki=28.07.2024

[Leke Grupları]
Grupsayısı=12:4:8
LekeSayısı=91:5:86
RölatifSayı=211:45:166
01=AX_ 01 +18.300 +64.116 059.766 -1.000 0000 0 +18.300 +64.116 +18.300 +64.116
02=HS_ 01 +03.686 -13.571 342.790 +0.000 0000 0 +04.862 -12.699 +02.510 -14.442 +03.686 -13.200 +03.686 -13.943
03=AX_ 02 +02.740 -21.562 334.880 -1.000 0000 0 +02.740 -21.562 +02.740 -21.562
04=HH_ 01 +20.946 -74.365 281.285 +0.000 0000 0 +22.560 -72.733 +19.836 -75.996 +20.946 -73.233 +20.946 -75.496
05=HR_ 01 -17.668 +67.748 063.398 +0.000 0000 0 -16.842 +68.455 -18.495 +67.410 -17.668 +67.771 -17.668 +67.726
06=EKC 33 -11.343 +23.860 019.510 14.938 0000 0 -08.803 +29.407 -13.882 +18.312 -10.419 +28.980 -12.840 +18.979
07=AX_ 04 -14.330 +13.831 009.481 +0.000 0000 0 -12.949 +14.909 -15.712 +12.753 +00.000 +00.000 +00.000 +00.000
08=CRO 08 -15.890 +04.872 000.522 16.233 0000 0 -14.875 +07.375 -16.905 +02.369 -16.561 +06.613 -15.475 +02.880
09=?__ 03 -03.392 -18.644 337.600 +0.000 0000 0 -00.964 -17.260 -05.820 -20.280 -03.392 -17.634 -03.392 -19.654
10=DAC 16 -07.128 -25.928 329.722 12.693 0000 0 -05.688 -21.131 -08.567 -30.725 -07.998 -22.650 -06.615 -28.801
11=DHI 07 -11.188 -29.855 325.795 28.922 0000 0 -08.728 -26.594 -13.649 -33.116 -11.968 -28.205 -09.645 -32.414
12=EAC 14 -09.600 -39.490 316.160 18.498 0000 0 -07.107 -34.163 -12.940 -44.817 -08.501 -36.656 -10.891 -43.824
20240727.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 →

2024/20240727_bto · BTO · 6 frames · 128.6 MB · 10:41:21–10:48:47 UT

10:44:52 UT · 30 ms 10:45:55 UT · 30 ms 10:41:21 UT · 30 ms 10:48:47 UT · 40 ms 10:47:20 UT · 50 ms · over-exposed 10:43:55 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.