Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 26 September 2024

‹ 25.09.2024 2024 27.09.2024 ›

Photosphere sunspot drawing and RDS evaluation

26.09.2024 photosphere drawing

High-resolution scan (3230 px)

Time
09:10 UT
Observer
Burçin TANIK
g
7
f
54
R
124
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 4Group 1 · BXO – 4 Group 2 · HS_ – 1Group 2 · HS_ – 1 Group 3 · ?__ – 4Group 3 · ?__ – 4 Group 4 · AX_ – 4Group 4 · AX_ – 4 Group 5 · CRI – 12Group 5 · CRI – 12 Group 6 · DRC – 7Group 6 · DRC – 7 Group 7 · DKI – 22Group 7 · DKI – 22
RDS data file (.gzd) 
[Gözlem]
Tarih=26.09.2024
Saat=09:10
Gözlemci=Burçin TANIK
KontrolEden=Burçin TANIK
Durumaçısı=25.6
Enlemaçısı=6.91
Boylamaçısı=270.44
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=0.5
Sırano=20103
AyRasatNo=24
RasatÖnceki=25.09.2024
RasatSonraki=27.09.2024

[Leke Grupları]
Grupsayısı=7:1:6
LekeSayısı=54:4:50
RölatifSayı=124:14:110
01=BXO 04 +15.981 -52.878 217.562 +0.000 0000 0 +16.706 -50.560 +15.255 -55.195 +15.981 -51.600 +15.981 -54.695
02=HS_ 01 -25.830 +62.490 332.930 +0.000 0000 0 -24.992 +63.633 -26.668 +61.347 -25.830 +63.133 -25.830 +61.847
03=?__ 04 -11.104 +52.552 322.992 +0.000 0000 0 -09.846 +54.410 -12.362 +51.630 -11.104 +53.442 -11.104 +51.662
04=AX_ 04 -10.121 +23.809 294.250 +0.000 0000 0 -09.219 +24.625 -11.230 +22.994 +00.000 +00.000 +00.000 +00.000
05=CRI 12 -14.881 +02.737 273.177 34.547 0000 0 -12.551 +05.492 -17.212 -00.190 -13.710 +04.158 -16.215 +00.515
06=DRC 07 -20.408 -19.439 251.100 32.801 0000 0 -17.116 -15.407 -23.700 -23.471 -18.821 -17.149 -22.600 -23.320
07=DKI 22 -09.190 -41.184 229.256 26.363 0000 0 -07.170 -37.634 -11.210 -44.735 -07.872 -38.613 -10.252 -43.424
20240926.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 →

2024/20240926_bto · BTO · 4 frames · 85.7 MB · 09:13:54–09:16:58 UT

09:15:03 UT · 20 ms 09:16:58 UT · 40 ms 09:16:08 UT · 30 ms 09:13:54 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.