Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 15 September 2024

‹ 14.09.2024 2024 16.09.2024 ›

Photosphere sunspot drawing and RDS evaluation

15.09.2024 photosphere drawing

High-resolution scan (3234 px)

Time
11:50 UT
Observer
Burçin TANIK
g
4
f
45
R
85
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HH_ – 1Group 1 · HH_ – 1 Group 2 · DRO – 2Group 2 · DRO – 2 Group 3 · CSI – 20Group 3 · CSI – 20 Group 4 · ESC – 22Group 4 · ESC – 22
RDS data file (.gzd) 
[Gözlem]
Tarih=15.09.2024
Saat=11:50
Gözlemci=Burçin TANIK
KontrolEden=Süleyman FİŞEK
Durumaçısı=24.18
Enlemaçısı=7.2
Boylamaçısı=54.17
Boylamfark=0
GKalite=3
GDurum=G.T
Kuzeyaçısı=0.0
Sırano=20093
AyRasatNo=14
RasatÖnceki=14.09.2024
RasatSonraki=16.09.2024

[Leke Grupları]
Grupsayısı=4:1:3
LekeSayısı=45:1:44
RölatifSayı=85:11:74
01=HH_ 01 +16.390 +57.768 111.938 +0.000 0000 0 +17.351 +59.870 +14.728 +56.450 +16.390 +58.978 +16.390 +56.558
02=DRO 02 -27.502 +21.411 075.581 +0.000 0000 0 -26.540 +24.940 -28.464 +18.729 -27.502 +23.894 -27.502 +18.929
03=CSI 20 -04.266 +17.642 071.812 09.993 0000 0 -02.228 +24.550 -06.305 +11.229 -03.562 +23.210 -05.519 +12.320
04=ESC 22 -16.349 -42.440 011.730 22.278 0000 0 -13.391 -36.820 -19.307 -48.600 -14.602 -38.796 -17.452 -45.775
20240915.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 →

2024/20240915_bto · BTO · 3 frames · 64.3 MB · 12:02:08–12:05:59 UT

12:05:59 UT · 20 ms 12:04:59 UT · 60 ms · over-exposed 12:02:08 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.