Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Tuesday, 29 October 2024

‹ 28.10.2024 2024 30.10.2024 ›

Photosphere sunspot drawing and RDS evaluation

29.10.2024 photosphere drawing

High-resolution scan (3224 px)

Time
10:00 UT
Observer
Olcay PLEVNE
g
9
f
89
R
179
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DAC – 16Group 1 · DAC – 16 Group 2 · AX_ – 2Group 2 · AX_ – 2 Group 3 · EAC – 9Group 3 · EAC – 9 Group 4 · ?__ – 1Group 4 · ?__ – 1 Group 5 · AX_ – 2Group 5 · AX_ – 2 Group 6 · HS_ – 1Group 6 · HS_ – 1 Group 7 · DAC – 17Group 7 · DAC – 17 Group 8 · FAC – 33Group 8 · FAC – 33 Group 9 · DAC – 8Group 9 · DAC – 8
RDS data file (.gzd) 
[Gözlem]
Tarih=29.10.2024
Saat=10:00
Gözlemci=Olcay PLEVNE
KontrolEden=Burçin TANIK
Durumaçısı=24.82
Enlemaçısı=4.62
Boylamaçısı=194.65
Boylamfark=1
GKalite=3
GDurum=K.T
Kuzeyaçısı=0.0
Sırano=20132
AyRasatNo=25
RasatÖnceki=28.10.2024
RasatSonraki=30.10.2024

[Leke Grupları]
Grupsayısı=9:4:5
LekeSayısı=89:28:61
RölatifSayı=179:68:111
01=DAC 16 +24.524 +24.329 218.979 +0.000 0000 0 +26.367 +30.260 +22.682 +18.398 +24.524 +30.600 +24.524 +18.598
02=AX_ 02 +27.124 +05.829 200.479 +0.000 0000 0 +27.694 +06.214 +26.555 +05.443 +27.124 +05.714 +27.124 +05.944
03=EAC 09 +16.381 -57.719 136.931 +0.000 0000 0 +18.348 -50.956 +14.414 -64.481 +16.381 -51.156 +16.381 -64.281
04=?__ 01 +15.248 -81.891 112.759 +0.000 0000 0 +17.372 -77.709 +13.123 -86.730 +15.248 -77.881 +15.248 -85.901
05=AX_ 02 -09.728 +68.813 263.463 +0.000 0000 0 -08.931 +69.742 -10.524 +67.885 -09.728 +69.242 -09.728 +68.385
06=HS_ 01 -10.781 +23.927 218.577 +0.000 0000 0 -09.152 +25.520 -12.410 +22.335 -10.781 +25.200 -10.781 +22.834
07=DAC 17 -04.667 +11.153 205.803 +0.000 0000 0 -02.258 +16.570 -07.750 +06.249 -04.667 +15.857 -04.667 +06.449
08=FAC 33 -14.294 +01.420 196.700 +0.000 0000 0 -09.277 +09.949 -19.311 -07.109 -14.294 +09.749 -14.294 -06.909
09=DAC 08 -12.956 -15.319 179.331 +0.000 0000 0 -09.900 -10.139 -16.821 -20.498 -12.956 -10.339 -12.956 -20.298
20241029.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 →

2024/20241029_op · OP · 4 frames · 85.7 MB · 10:02:58–10:07:18 UT

10:05:05 UT · 30 ms 10:06:27 UT · 50 ms · over-exposed 10:07:18 UT · 50 ms · over-exposed 10:02:58 UT · 30 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.