Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 28 July 2024

‹ 27.07.2024 2024 29.07.2024 ›

Photosphere sunspot drawing and RDS evaluation

28.07.2024 photosphere drawing

High-resolution scan (3233 px)

Time
07:55 UT
Observer
Burçin TANIK
g
10
f
130
R
230
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 1Group 1 · HS_ – 1 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · CAO – 10Group 3 · CAO – 10 Group 4 · HS_ – 1Group 4 · HS_ – 1 Group 5 · EKC – 36Group 5 · EKC – 36 Group 6 · DSC – 15Group 6 · DSC – 15 Group 7 · HS_ – 1Group 7 · HS_ – 1 Group 8 · CAI – 27Group 8 · CAI – 27 Group 9 · DHC – 18Group 9 · DHC – 18 Group 10 · ESC – 20Group 10 · ESC – 20
RDS data file (.gzd) 
[Gözlem]
Tarih=28.07.2024
Saat=07:55
Gözlemci=Burçin TANIK
KontrolEden=Burçin TANIK
Durumaçısı=9.5
Enlemaçısı=5.52
Boylamaçısı=343.85
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.6
Sırano=20045
AyRasatNo=26
RasatÖnceki=27.07.2024
RasatSonraki=29.07.2024

[Leke Grupları]
Grupsayısı=10:4:6
LekeSayısı=130:13:117
RölatifSayı=230:53:177
01=HS_ 01 +04.500 -01.622 342.228 +0.000 0000 0 +05.132 -00.533 +02.878 -02.711 +04.500 -01.330 +04.500 -02.211
02=AX_ 01 +02.463 -09.578 334.272 -1.000 0000 0 +02.463 -09.578 +02.463 -09.578
03=CAO 10 +07.918 -20.658 323.192 34.625 0000 0 +09.360 -18.629 +06.476 -22.687 +06.913 -19.228 +08.726 -21.855
04=HS_ 01 +21.970 -59.619 284.231 +0.000 0000 0 +22.342 -58.517 +19.851 -60.721 +21.970 -59.170 +21.970 -60.221
05=EKC 36 -11.181 +36.244 020.940 77.900 0000 0 -08.986 +42.793 -13.377 +29.695 -12.570 +31.735 -10.107 +31.285
06=DSC 15 -15.733 +17.468 001.318 +0.000 0000 0 -14.155 +22.319 -17.311 +12.617 -15.733 +22.119 -15.733 +12.817
07=HS_ 01 -03.130 -06.854 336.996 +0.000 0000 0 -01.781 -05.913 -04.246 -07.794 -03.130 -06.413 -03.130 -07.295
08=CAI 27 -06.945 -13.108 330.742 02.577 0000 0 -04.922 -08.850 -08.968 -18.132 -06.710 -09.466 -06.337 -17.780
09=DHC 18 -10.933 -17.990 325.860 34.132 0000 0 -08.437 -21.842 -13.430 -14.137 -12.468 -15.837 -08.999 -20.967
10=ESC 20 -09.510 -27.654 316.196 19.528 0000 0 -07.361 -22.512 -11.658 -32.797 -08.453 -24.822 -11.300 -32.111
20240728.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 →

2024/20240728_bto · BTO · 4 frames · 85.7 MB · 08:01:40–08:05:08 UT

08:01:40 UT · 40 ms 08:04:22 UT · 30 ms 08:03:03 UT · 60 ms · over-exposed 08:05:08 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.