Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 19 August 2024

‹ 18.08.2024 2024 20.08.2024 ›

Photosphere sunspot drawing and RDS evaluation

19.08.2024 photosphere drawing

High-resolution scan (3235 px)

Time
06:50 UT
Observer
Burçin TANIK
g
10
f
105
R
205
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DKI – 15Group 1 · DKI – 15 Group 2 · BXI – 10Group 2 · BXI – 10 Group 3 · DSC – 16Group 3 · DSC – 16 Group 4 · CAI – 12Group 4 · CAI – 12 Group 5 · CSI – 8Group 5 · CSI – 8 Group 6 · HS_ – 1Group 6 · HS_ – 1 Group 7 · BXI – 11Group 7 · BXI – 11 Group 8 · EKC – 16Group 8 · EKC – 16 Group 9 · HH_ – 1Group 9 · HH_ – 1 Group 10 · ?__ – 15Group 10 · ?__ – 15
RDS data file (.gzd) 
[Gözlem]
Tarih=19.08.2024
Saat=06:50
Gözlemci=Burçin TANIK
KontrolEden=Süleyman FİŞEK
Durumaçısı=17.53
Enlemaçısı=6.84
Boylamaçısı=53.56
Boylamfark=3
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.6
Sırano=20067
AyRasatNo=19
RasatÖnceki=18.08.2024
RasatSonraki=20.08.2024

[Leke Grupları]
Grupsayısı=10:4:6
LekeSayısı=105:53:52
RölatifSayı=205:93:112
01=DKI 15 +17.517 +60.932 114.492 72.553 0000 0 +21.659 +65.139 +13.374 +56.725 +14.921 +61.236 +20.326 +59.532
02=BXI 10 +27.574 +29.113 082.673 35.892 0000 0 +29.926 +32.528 +25.222 +25.699 +25.622 +31.330 +28.888 +26.807
03=DSC 16 +18.643 -13.932 039.628 +0.000 0000 0 +20.480 -09.929 +16.806 -17.934 +18.643 -10.129 +18.643 -17.734
04=CAI 12 +21.610 -30.686 022.874 22.921 0000 0 +22.757 -27.942 +19.364 -33.430 +21.636 -29.262 +20.142 -32.798
05=CSI 08 -13.412 +52.410 105.970 18.280 0000 0 -10.898 +57.394 -15.926 +47.426 -15.205 +55.932 -12.568 +47.796
06=HS_ 01 -07.634 +37.420 090.980 +0.000 0000 0 -06.631 +38.494 -08.637 +36.346 -07.634 +37.994 -07.634 +36.846
07=BXI 11 -04.430 +15.852 069.412 +0.000 0000 0 -02.841 +18.490 -06.200 +13.214 -04.430 +18.290 -04.430 +13.414
08=EKC 16 -10.752 -29.774 023.786 +0.000 0000 0 -08.318 -24.722 -13.185 -34.826 -10.752 -24.922 -10.752 -34.626
09=HH_ 01 -16.286 -44.391 009.169 +0.000 0000 0 -14.320 -42.125 -18.252 -46.656 -16.286 -42.625 -16.286 -46.156
10=?__ 15 -02.998 -63.294 350.266 +0.000 0000 0 -00.841 -58.641 -05.155 -67.946 -02.998 -59.141 -02.998 -67.447
20240819.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 →

2024/20240819_bto · BTO · 5 frames · 107.1 MB · 06:57:08–07:00:33 UT

06:57:08 UT · 20 ms 06:58:54 UT · 30 ms 06:59:42 UT · 40 ms 07:00:33 UT · 60 ms · over-exposed 06:58:03 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.