Images 20.02.2023 · Istanbul University Observatory Solar Observations

Solar Images Monday, 20 February 2023

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 09:50 UT
Observer: Ergün EGE
g: 8
f: 23
R: 103
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1

Group 2 · HS_ – 2

Group 3 · BXI – 6

Group 4 · AX_ – 1

Group 5 · ESI – 10

Group 6 · HR_ – 1

Group 7 · HS_ – 1

Group 8 · HS_ – 1

RDS data file (.gzd)

[Gözlem]
Tarih=20.02.2023
Saat=09:50
Gözlemci=Ergün EGE
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=-19.02
Enlemaçısı=-7.01
Boylamaçısı=61.22
Boylamfark=1
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.1
Sırano=19660
AyRasatNo=15
RasatÖnceki=19.02.2023
RasatSonraki=21.02.2023

[Leke Grupları]
Grupsayısı=8:5:3
LekeSayısı=23:20:3
RölatifSayı=103:70:33
01=AX_ 01 +09.800 +69.913 131.133 +0.000 0000 0 +10.122 +70.545 +09.479 +69.280 +09.800 +70.460 +09.800 +69.781
02=HS_ 02 +10.667 +54.462 115.682 +0.000 0000 0 +12.106 +56.491 +09.227 +52.434 +10.667 +55.991 +10.667 +52.934
03=BXI 06 +21.900 +42.230 103.450 +0.000 0000 0 +23.140 +45.263 +19.400 +39.197 +21.900 +45.630 +21.900 +39.397
04=AX_ 01 +13.986 -09.499 051.721 +0.000 0000 0 +14.258 -09.910 +13.714 -09.907 +13.986 -09.997 +13.986 -09.000
05=ESI 10 +24.878 -29.219 032.100 +0.000 0000 0 +27.400 -24.150 +22.751 -34.289 +24.878 -24.350 +24.878 -34.890
06=HR_ 01 -12.369 +75.340 136.254 +0.000 0000 0 -11.360 +76.500 -13.377 +73.568 -12.369 +76.306 -12.369 +74.374
07=HS_ 01 -14.152 +57.533 118.753 +0.000 0000 0 -13.118 +58.904 -15.186 +56.162 -14.152 +58.404 -14.152 +56.662
08=HS_ 01 -22.527 -53.557 007.663 +0.000 0000 0 -21.677 -51.995 -23.377 -55.119 -22.527 -52.495 -22.527 -54.619

20230220.gzd

Chromosphere (H-α) FITS frames

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 →

2023/20230220_ee · EE · 9 frames · 192.8 MB · 09:56:01–10:09:59 UT

10:09:24 UT · 40 ms