Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 16 September 2022

‹ 15.09.2022 2022 17.09.2022 ›

Photosphere sunspot drawing and RDS evaluation

16.09.2022 photosphere drawing

High-resolution scan (3228 px)

Time
08:00 UT
Observer
Başar COŞKUNOĞLU
g
4
f
27
R
67
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 3Group 1 · HS_ – 3 Group 2 · DSI – 15Group 2 · DSI – 15 Group 3 · DSC – 3Group 3 · DSC – 3 Group 4 · BXI – 6Group 4 · BXI – 6
RDS data file (.gzd) 
[Gözlem]
Tarih=16.09.2022
Saat=08:00
Gözlemci=Başar COŞKUNOĞLU
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=24.24
Enlemaçısı=7.19
Boylamaçısı=331.39
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.6
Sırano=19552
AyRasatNo=15
RasatÖnceki=15.09.2022
RasatSonraki=17.09.2022

[Leke Grupları]
Grupsayısı=4:0:4
LekeSayısı=27:0:27
RölatifSayı=67:0:67
01=HS_ 03 -22.586 +23.997 355.387 +0.000 0000 0 -21.645 +25.527 -23.528 +22.467 -22.586 +25.270 -22.586 +22.967
02=DSI 15 -13.702 -02.628 328.762 +0.000 0000 0 -12.521 -00.235 -14.883 -05.200 -13.702 -00.435 -13.702 -04.820
03=DSC 03 -25.635 -30.621 300.769 +0.000 0000 0 -24.505 -28.123 -26.766 -33.120 -25.635 -28.323 -25.635 -32.920
04=BXI 06 -22.801 -38.289 293.101 08.420 0000 0 -21.642 -36.113 -23.959 -40.466 -22.801 -36.313 -23.320 -39.821
20220916.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 →

2022/20220916_bc · BC · 6 frames · 128.6 MB · 08:18:49–08:23:45 UT

08:20:48 UT · 50 ms 08:19:53 UT · 50 ms 08:18:49 UT · 50 ms 08:23:45 UT · 70 ms · over-exposed 08:22:19 UT · 70 ms · over-exposed 08:22:56 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.