Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 17 June 2022

‹ 16.06.2022 2022 18.06.2022 ›

Photosphere sunspot drawing and RDS evaluation

17.06.2022 photosphere drawing

High-resolution scan (3228 px)

Time
10:11 UT
Observer
Başar COŞKUNOĞLU
g
10
f
60
R
160
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DSI – 18Group 1 · DSI – 18 Group 2 · HS_ – 2Group 2 · HS_ – 2 Group 3 · AX_ – 6Group 3 · AX_ – 6 Group 4 · HS_ – 1Group 4 · HS_ – 1 Group 5 · BXI – 7Group 5 · BXI – 7 Group 6 · AX_ – 1Group 6 · AX_ – 1 Group 7 · AX_ – 1Group 7 · AX_ – 1 Group 8 · CSO – 4Group 8 · CSO – 4 Group 9 · DSO – 8Group 9 · DSO – 8 Group 10 · BXI – 12Group 10 · BXI – 12
RDS data file (.gzd) 
[Gözlem]
Tarih=17.06.2022
Saat=10:11
Gözlemci=Başar COŞKUNOĞLU
KontrolEden=Özgecan ÖNALTAŞ
Durumaçısı=-8.78
Enlemaçısı=1.27
Boylamaçısı=93.52
Boylamfark=1
GKalite=3
GDurum=G.T , B.A
Kuzeyaçısı=-0.4
Sırano=19464
AyRasatNo=16
RasatÖnceki=16.06.2022
RasatSonraki=18.06.2022

[Leke Grupları]
Grupsayısı=10:6:4
LekeSayısı=60:35:25
RölatifSayı=160:95:65
01=DSI 18 +17.836 +21.471 114.991 25.407 0000 0 +20.135 +24.905 +15.538 +18.380 +16.760 +23.773 +19.470 +18.950
02=HS_ 02 +19.719 +09.267 102.787 +0.000 0000 0 +20.625 +11.768 +18.813 +06.767 +19.719 +11.267 +19.719 +07.267
03=AX_ 06 +16.289 -07.644 085.876 +0.000 0000 0 +16.716 -06.338 +15.861 -08.950 +16.289 -06.838 +16.289 -08.450
04=HS_ 01 +01.537 -21.814 071.706 +0.000 0000 0 +02.424 -20.867 +00.650 -22.761 +01.537 -21.367 +01.537 -22.261
05=BXI 07 +15.591 -42.510 051.100 +0.000 0000 0 +16.206 -39.641 +14.977 -45.378 +15.591 -40.141 +15.591 -44.878
06=AX_ 01 +12.899 -49.914 043.606 -1.000 0000 0 +12.899 -49.914 +12.899 -49.914
07=AX_ 01 -19.811 +49.125 142.645 -1.000 0000 0 -19.811 +49.125 -19.811 +49.125
08=CSO 04 -23.280 +37.314 130.834 56.227 0000 0 -20.789 +39.216 -25.770 +35.412 -21.699 +38.798 -24.855 +36.685
09=DSO 08 -28.900 +29.240 122.760 07.303 0000 0 -25.822 +33.384 -30.196 +25.960 -28.900 +33.184 -28.942 +25.883
10=BXI 12 -17.915 -25.779 067.741 +0.000 0000 0 -16.687 -20.119 -19.143 -31.438 -17.915 -20.319 -17.915 -31.238
20220617.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 →

2022/20220617_bc · BC · 6 frames · 128.6 MB · 10:17:18–10:21:18 UT

10:18:52 UT · 40 ms 10:17:18 UT · 40 ms 10:18:10 UT · 40 ms 10:20:10 UT · 60 ms · over-exposed 10:19:28 UT · 60 ms · over-exposed 10:21:18 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.