Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 26 December 2022

‹ 25.12.2022 2022 27.12.2022 ›

Photosphere sunspot drawing and RDS evaluation

26.12.2022 photosphere drawing

High-resolution scan (3229 px)

Time
07:40 UT
Observer
Ergün EGE
g
7
f
20
R
90
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 3Group 1 · BXO – 3 Group 2 · ESC – 9Group 2 · ESC – 9 Group 3 · HS_ – 2Group 3 · HS_ – 2 Group 4 · HS_ – 1Group 4 · HS_ – 1 Group 5 · HR_ – 1Group 5 · HR_ – 1 Group 6 · AX_ – 1Group 6 · AX_ – 1 Group 7 · CRO – 3Group 7 · CRO – 3
RDS data file (.gzd) 
[Gözlem]
Tarih=26.12.2022
Saat=07:40
Gözlemci=Ergün EGE
KontrolEden=Talar YONTAN
Durumaçısı=4.94
Enlemaçısı=-2.28
Boylamaçısı=79.81
Boylamfark=2
GKalite=3
GDurum=H.S
Kuzeyaçısı=-0.5
Sırano=19625
AyRasatNo=12
RasatÖnceki=25.12.2022
RasatSonraki=27.12.2022

[Leke Grupları]
Grupsayısı=7:5:2
LekeSayısı=20:16:4
RölatifSayı=90:66:24
01=BXO 03 +18.850 +44.260 123.836 +0.000 0000 0 +20.181 +46.229 +17.518 +41.823 +18.850 +46.290 +18.850 +42.230
02=ESC 09 +21.491 +31.372 111.182 +0.000 0000 0 +24.418 +36.446 +18.563 +26.298 +21.491 +36.246 +21.491 +26.498
03=HS_ 02 +23.651 +15.367 095.177 +0.000 0000 0 +24.787 +16.978 +22.516 +13.756 +23.651 +16.478 +23.651 +14.256
04=HS_ 01 +24.121 -32.537 047.273 +0.000 0000 0 +24.908 -31.324 +23.335 -33.750 +24.121 -31.824 +24.121 -33.250
05=HR_ 01 +18.667 -70.107 009.703 +0.000 0000 0 +19.260 -69.860 +18.309 -71.128 +18.667 -69.973 +18.667 -70.241
06=AX_ 01 -36.900 -16.776 063.340 +0.000 0000 0 -35.692 -16.304 -36.325 -17.249 -36.900 -16.803 -36.900 -16.748
07=CRO 03 -20.979 -51.820 027.990 +0.000 0000 0 -19.843 -49.396 -22.115 -54.245 -20.979 -49.596 -20.979 -54.450
20221226.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 →

2022/20221226_ee · EE · 6 frames · 128.6 MB · 07:47:43–09:46:56 UT

07:47:43 UT · 30 ms 09:44:07 UT · 30 ms 09:43:10 UT · 40 ms 09:45:43 UT · 50 ms · over-exposed 09:46:19 UT · 60 ms · over-exposed 09:46:56 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.