Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Saturday, 5 October 2024

‹ 04.10.2024 2024 06.10.2024 ›

Photosphere sunspot drawing and RDS evaluation

05.10.2024 photosphere drawing

High-resolution scan (3222 px)

Time
09:00 UT
Observer
Olcay PLEVNE
g
6
f
90
R
150
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · ERI – 19Group 1 · ERI – 19 Group 2 · HS_ – 13Group 2 · HS_ – 13 Group 3 · ESI – 6Group 3 · ESI – 6 Group 4 · FAC – 21Group 4 · FAC – 21 Group 5 · EAI – 22Group 5 · EAI – 22 Group 6 · FAC – 9Group 6 · FAC – 9
RDS data file (.gzd) 
[Gözlem]
Tarih=5.10.2024
Saat=09:00
Gözlemci=Olcay PLEVNE
KontrolEden=Ergün EGE
Durumaçısı=26.18
Enlemaçısı=6.48
Boylamaçısı=151.77
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.1
Sırano=20111
AyRasatNo=4
RasatÖnceki=04.10.2024
RasatSonraki=06.10.2024

[Leke Grupları]
Grupsayısı=6:2:4
LekeSayısı=90:32:58
RölatifSayı=150:52:98
01=ERI 19 +13.354 +39.719 191.489 +0.000 0000 0 +15.792 +45.243 +10.915 +34.196 +13.354 +45.430 +13.354 +34.396
02=HS_ 13 +14.237 -39.410 112.729 +0.000 0000 0 +17.690 -35.122 +10.784 -42.961 +14.237 -35.991 +14.237 -42.829
03=ESI 06 -09.435 +61.132 212.902 +0.000 0000 0 -07.933 +67.990 -10.937 +54.274 -09.435 +67.790 -09.435 +54.474
04=FAC 21 -14.544 +46.712 198.482 +0.000 0000 0 -11.650 +55.696 -18.230 +37.729 -14.544 +55.496 -14.544 +37.929
05=EAI 22 -13.964 +24.855 176.625 +0.000 0000 0 -08.871 +31.569 -19.580 +18.140 -13.964 +31.369 -13.964 +18.340
06=FAC 09 -05.228 -64.553 087.217 +0.000 0000 0 -01.926 -56.478 -08.530 -72.629 -05.228 -56.678 -05.228 -72.429
20241005.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 →

2024/20241005_op · OP · 5 frames · 107.1 MB · 09:09:31–09:19:37 UT

09:09:31 UT · 40 ms 09:12:34 UT · 50 ms 09:11:38 UT · 50 ms · over-exposed 09:19:37 UT · 60 ms · over-exposed 09:18:27 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.