Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 19 December 2021

‹ 14.12.2021 2021 21.12.2021 ›

Photosphere sunspot drawing and RDS evaluation

19.12.2021 photosphere drawing

High-resolution scan (3231 px)

Time
07:10 UT
Observer
Ergün EGE
g
9
f
31
R
121
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · AX_ – 2Group 2 · AX_ – 2 Group 3 · AX_ – 1Group 3 · AX_ – 1 Group 4 · AX_ – 3Group 4 · AX_ – 3 Group 5 · CSO – 11Group 5 · CSO – 11 Group 6 · AX_ – 1Group 6 · AX_ – 1 Group 7 · BXO – 8Group 7 · BXO – 8 Group 8 · CSO – 3Group 8 · CSO – 3 Group 9 · AX_ – 1Group 9 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=19.12.2021
Saat=07:10
Gözlemci=Ergün EGE
KontrolEden=Talar YONTAN
Durumaçısı=8.14
Enlemaçısı=-1.45
Boylamaçısı=309.57
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=0.3
Sırano=19342
AyRasatNo=11
RasatÖnceki=14.12.2021
RasatSonraki=21.12.2021

[Leke Grupları]
Grupsayısı=9:2:7
LekeSayısı=31:3:28
RölatifSayı=121:23:98
01=AX_ 01 +12.981 +40.579 350.149 +0.000 0000 0 +13.391 +40.819 +12.571 +40.340 +12.981 +40.318 +12.981 +40.840
02=AX_ 02 +19.603 -37.297 272.273 +0.000 0000 0 +19.951 -36.698 +19.255 -37.896 +19.603 -37.198 +19.603 -37.396
03=AX_ 01 -29.130 +33.421 342.991 +0.000 0000 0 -28.848 +33.770 -29.412 +33.720 -29.130 +32.946 -29.130 +33.896
04=AX_ 03 -21.142 +06.703 316.273 +0.000 0000 0 -20.166 +07.250 -22.118 +06.157 -21.142 +06.750 -21.142 +06.656
05=CSO 11 -20.172 +00.220 309.790 +0.000 0000 0 -17.230 +03.855 -23.113 -03.415 -20.172 +03.655 -20.172 -03.215
06=AX_ 01 -16.750 -07.644 301.926 +0.000 0000 0 -16.447 -07.215 -17.530 -08.740 -16.750 -07.382 -16.750 -07.906
07=BXO 08 -20.320 -14.506 295.640 +0.000 0000 0 -19.214 -10.144 -21.426 -18.869 -20.320 -10.344 -20.320 -18.669
08=CSO 03 -20.597 -27.113 282.457 +0.000 0000 0 -19.743 -23.341 -21.451 -30.886 -20.597 -23.541 -20.597 -30.686
09=AX_ 01 -11.219 -78.576 230.994 +0.000 0000 0 -10.802 -77.223 -11.637 -79.929 -11.219 -77.723 -11.219 -79.429
20211219.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 →

2021/20211219_ee · EE · 4 frames · 85.7 MB · 06:53:26–07:00:37 UT

07:00:37 UT · 40 ms 06:53:26 UT · 40 ms · over-exposed 06:57:01 UT · 50 ms · over-exposed 06:57:44 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.