Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 30 September 2024

‹ 29.09.2024 2024 02.10.2024 ›

Photosphere sunspot drawing and RDS evaluation

30.09.2024 photosphere drawing

High-resolution scan (3229 px)

Time
08:25 UT
Observer
Ergün EGE
g
9
f
39
R
129
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DSI – 6Group 1 · DSI – 6 Group 2 · AX_ – 2Group 2 · AX_ – 2 Group 3 · AX_ – 1Group 3 · AX_ – 1 Group 4 · CSI – 6Group 4 · CSI – 6 Group 5 · CAO – 5Group 5 · CAO – 5 Group 6 · DRO – 6Group 6 · DRO – 6 Group 7 · AX_ – 2Group 7 · AX_ – 2 Group 8 · HS_ – 1Group 8 · HS_ – 1 Group 9 · DAI – 10Group 9 · DAI – 10
RDS data file (.gzd) 
[Gözlem]
Tarih=30.09.2024
Saat=08:25
Gözlemci=Ergün EGE
KontrolEden=Burçin TANIK
Durumaçısı=25.93
Enlemaçısı=6.74
Boylamaçısı=217.92
Boylamfark=2
GKalite=3
GDurum=B.A , H.S
Kuzeyaçısı=-0.3
Sırano=20107
AyRasatNo=28
RasatÖnceki=29.09.2024
RasatSonraki=02.10.2024

[Leke Grupları]
Grupsayısı=9:1:8
LekeSayısı=39:6:33
RölatifSayı=129:16:113
01=DSI 06 +13.372 -28.905 189.150 +0.000 0000 0 +15.113 -26.201 +11.630 -31.609 +13.372 -26.401 +13.372 -31.409
02=AX_ 02 -17.477 +54.630 272.550 +0.000 0000 0 -16.700 +55.207 -18.946 +54.520 -17.477 +54.473 -17.477 +54.787
03=AX_ 01 -09.190 +38.184 256.104 +0.000 0000 0 -08.778 +38.650 -09.260 +37.717 -09.190 +38.150 -09.190 +38.217
04=CSI 06 -21.459 +31.111 249.310 +0.000 0000 0 -19.792 +36.720 -23.126 +26.151 -21.459 +35.872 -21.459 +26.351
05=CAO 05 -10.419 +11.564 229.484 +0.000 0000 0 -09.347 +13.664 -11.491 +09.464 -10.419 +13.464 -10.419 +09.664
06=DRO 06 -08.000 -11.652 206.268 +0.000 0000 0 -06.860 -08.714 -09.140 -14.591 -08.000 -08.914 -08.000 -14.391
07=AX_ 02 -14.748 -20.592 197.328 +0.000 0000 0 -13.258 -19.377 -16.239 -21.807 +00.000 +00.000 +00.000 +00.000
08=HS_ 01 -13.214 -28.858 189.620 +0.000 0000 0 -12.396 -27.455 -14.310 -30.262 -13.214 -27.955 -13.214 -29.761
09=DAI 10 -14.900 -42.450 175.470 +0.000 0000 0 -10.566 -37.397 -17.452 -47.503 -14.900 -37.597 -14.900 -47.303
20240930.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 →

2024/20240930_ee · EE · 8 frames · 171.4 MB · 08:28:29–08:39:45 UT

08:29:43 UT · 30 ms 08:36:58 UT · 20 ms 08:28:29 UT · 20 ms 08:38:12 UT · 30 ms 08:38:50 UT · 40 ms 08:35:46 UT · 50 ms 08:33:35 UT · 40 ms 08:39:45 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.