Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 22 November 2024

‹ 21.11.2024 2024 24.11.2024 ›

Photosphere sunspot drawing and RDS evaluation

22.11.2024 photosphere drawing

High-resolution scan (3231 px)

Time
08:50 UT
Observer
Ergün EGE
g
8
f
24
R
104
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HR_ – 2Group 1 · HR_ – 2 Group 2 · CSO – 4Group 2 · CSO – 4 Group 3 · BXO – 4Group 3 · BXO – 4 Group 4 · DSI – 6Group 4 · DSI – 6 Group 5 · HR_ – 1Group 5 · HR_ – 1 Group 6 · DSO – 4Group 6 · DSO – 4 Group 7 · HS_ – 1Group 7 · HS_ – 1 Group 8 · DAO – 2Group 8 · DAO – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=22.11.2024
Saat=08:50
Gözlemci=Ergün EGE
KontrolEden=Burçin TANIK
Durumaçısı=19.02
Enlemaçısı=1.94
Boylamaçısı=238.88
Boylamfark=2
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.5
Sırano=20147
AyRasatNo=13
RasatÖnceki=21.11.2024
RasatSonraki=24.11.2024

[Leke Grupları]
Grupsayısı=8:1:7
LekeSayısı=24:2:22
RölatifSayı=104:12:92
01=HR_ 02 +21.907 -19.706 219.174 +0.000 0000 0 +22.327 -18.777 +21.487 -20.635 +21.907 -19.277 +21.907 -20.135
02=CSO 04 -13.755 +67.956 306.836 +0.000 0000 0 -12.491 +70.577 -15.190 +65.335 -13.755 +70.377 -13.755 +65.535
03=BXO 04 -15.770 +41.211 280.910 +0.000 0000 0 -13.926 +44.436 -16.228 +37.986 -15.770 +44.236 -15.770 +38.186
04=DSI 06 -11.400 +21.806 260.686 +0.000 0000 0 -09.591 +24.503 -12.417 +19.109 -11.400 +24.303 -11.400 +19.309
05=HR_ 01 -11.764 +04.376 243.256 +0.000 0000 0 -11.349 +04.633 -12.179 +04.118 -11.764 +04.134 -11.764 +04.618
06=DSO 04 -07.405 -18.596 220.284 +0.000 0000 0 -05.601 -16.910 -09.209 -20.282 -07.405 -17.110 -07.405 -20.820
07=HS_ 01 -15.788 -58.938 179.942 +0.000 0000 0 -15.139 -57.744 -16.436 -60.133 -15.788 -58.243 -15.788 -59.632
08=DAO 02 -08.462 -78.332 160.548 +0.000 0000 0 -07.334 -73.467 -09.590 -83.198 -08.462 -73.667 -08.462 -82.998
20241122.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 →

2024/20241122_ee · EE · 4 frames · 85.7 MB · 08:56:28–09:03:30 UT

08:59:13 UT · 40 ms 09:02:24 UT · 50 ms · over-exposed 08:56:28 UT · 30 ms 09:03:30 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.