Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Saturday, 14 December 2024

‹ 09.12.2024 2024 16.12.2024 ›

Photosphere sunspot drawing and RDS evaluation

14.12.2024 photosphere drawing

High-resolution scan (3229 px)

Time
09:45 UT
Observer
Ergün EGE
g
5
f
38
R
88
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DAO – 9Group 1 · DAO – 9 Group 2 · BXO – 5Group 2 · BXO – 5 Group 3 · BXO – 2Group 3 · BXO – 2 Group 4 · DHO – 4Group 4 · DHO – 4 Group 5 · DAI – 18Group 5 · DAI – 18
RDS data file (.gzd) 
[Gözlem]
Tarih=14.12.2024
Saat=09:45
Gözlemci=Ergün EGE
KontrolEden=Korhan YELKENCİ
Durumaçısı=10.27
Enlemaçısı=-0.85
Boylamaçısı=308.46
Boylamfark=1
GKalite=3
GDurum=
Kuzeyaçısı=-0.6
Sırano=20157
AyRasatNo=6
RasatÖnceki=09.12.2024
RasatSonraki=16.12.2024

[Leke Grupları]
Grupsayısı=5:3:2
LekeSayısı=38:16:22
RölatifSayı=88:46:42
01=DAO 09 +21.305 +20.429 328.889 +0.000 0000 0 +23.335 +24.468 +19.275 +16.390 +21.305 +24.268 +21.305 +16.590
02=BXO 05 +23.755 +13.677 322.137 +0.000 0000 0 +24.837 +15.903 +22.672 +11.451 +23.755 +15.703 +23.755 +11.651
03=BXO 02 +10.657 -58.734 249.726 +0.000 0000 0 +11.431 -57.950 +09.883 -60.373 +10.657 -58.230 +10.657 -59.445
04=DHO 04 -06.711 +58.632 007.920 +0.000 0000 0 -04.307 +62.368 -09.116 +54.897 -06.711 +62.168 -06.711 +55.970
05=DAI 18 -19.900 +05.806 314.266 +0.000 0000 0 -17.300 +10.748 -20.718 +00.864 -19.900 +10.548 -19.900 +01.640
20241214.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 →

2024/20241214_ee · EE · 8 frames · 171.4 MB · 09:44:10–09:56:00 UT

09:54:00 UT · 30 ms 09:54:47 UT · 40 ms 09:44:10 UT · 30 ms 09:45:32 UT · 40 ms 09:55:21 UT · 50 ms · over-exposed 09:47:43 UT · 50 ms · over-exposed 09:56:00 UT · 60 ms · over-exposed 09:51:15 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.