Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 6 December 2024

‹ 01.12.2024 2024 07.12.2024 ›

Photosphere sunspot drawing and RDS evaluation

06.12.2024 photosphere drawing

High-resolution scan (3230 px)

Time
08:30 UT
Observer
Ergün EGE
g
6
f
34
R
94
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CAO – 2Group 1 · CAO – 2 Group 2 · AX_ – 2Group 2 · AX_ – 2 Group 3 · AX_ – 3Group 3 · AX_ – 3 Group 4 · CAO – 11Group 4 · CAO – 11 Group 5 · CAO – 10Group 5 · CAO – 10 Group 6 · DAO – 6Group 6 · DAO – 6
RDS data file (.gzd) 
[Gözlem]
Tarih=6.12.2024
Saat=08:30
Gözlemci=Ergün EGE
KontrolEden=Süleyman FİŞEK
Durumaçısı=13.77
Enlemaçısı=0.18
Boylamaçısı=54.55
Boylamfark=2
GKalite=3
GDurum=H.S
Kuzeyaçısı=0.2
Sırano=20153
AyRasatNo=2
RasatÖnceki=01.12.2024
RasatSonraki=07.12.2024

[Leke Grupları]
Grupsayısı=6:2:4
LekeSayısı=34:4:30
RölatifSayı=94:24:70
01=CAO 02 +15.630 +50.274 104.824 +0.000 0000 0 +17.715 +51.974 +12.410 +48.573 +15.630 +51.774 +15.630 +48.773
02=AX_ 02 +12.793 -20.451 034.990 +0.000 0000 0 +13.633 -19.381 +11.952 -21.520 +00.000 +00.000 +00.000 +00.000
03=AX_ 03 -06.955 +39.155 093.705 +0.000 0000 0 -06.118 +40.410 -07.792 +38.269 +00.000 +00.000 +00.000 +00.000
04=CAO 11 -06.709 +23.670 077.617 +0.000 0000 0 -04.437 +26.719 -08.980 +19.414 -06.709 +26.519 -06.709 +19.614
05=CAO 10 -14.541 -38.411 016.139 +0.000 0000 0 -12.708 -34.372 -16.373 -42.451 -14.541 -34.572 -14.541 -42.251
06=DAO 06 -07.496 -48.155 006.395 +0.000 0000 0 -05.536 -44.329 -09.456 -51.981 -07.496 -44.529 -07.496 -51.781
20241206.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 →

2024/20241206_ee · EE · 4 frames · 85.7 MB · 09:48:39–09:54:57 UT

09:50:06 UT · 40 ms 09:52:08 UT · 50 ms 09:48:39 UT · 30 ms 09:54:57 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.