Images 25.04.2022 · Istanbul University Observatory Solar Observations

Solar Images Monday, 25 April 2022

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3229 px)

Time: 09:30 UT
Observer: Ergün EGE
g: 7
f: 24
R: 94
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CSO – 5

Group 2 · DHO – 5

Group 3 · HH_ – 6

Group 4 · HH_ – 1

Group 5 · AX_ – 2

RDS data file (.gzd)

[Gözlem]
Tarih=25.04.2022
Saat=09:30
Gözlemci=Ergün EGE
KontrolEden=Talar YONTAN
Durumaçısı=-25.01
Enlemaçısı=-4.74
Boylamaçısı=74.95
Boylamfark=1
GKalite=3
GDurum=H.S
Kuzeyaçısı=-0.6
Sırano=19416
AyRasatNo=17
RasatÖnceki=24.04.2022
RasatSonraki=26.04.2022

[Leke Grupları]
Grupsayısı=7:6:1
LekeSayısı=24:23:1
RölatifSayı=94:83:11
01=CSO 05 +20.568 +34.636 109.586 37.237 0000 0 +22.526 +37.303 +18.610 +31.969 +19.500 +36.140 +21.331 +33.770
02=DHO 05 +14.153 +34.770 109.270 40.423 0000 0 +16.840 +36.903 +11.465 +31.251 +15.700 +36.129 +12.418 +32.268
03=HH_ 06 +13.743 +23.895 098.845 -1.000 0000 0 +15.735 +25.396 +11.750 +22.393
04=HH_ 01 +13.173 +02.397 077.347 -1.000 0000 0 +14.873 +03.938 +11.472 +00.856
05=AX_ 02 +22.935 -11.848 063.102 +0.000 0000 0 +24.335 -10.853 +21.534 -12.843 +00.000 +00.000 +00.000 +00.000
06=DRO 04 +11.409 -44.980 030.852 +0.000 0000 0 +12.755 -38.403 +10.620 -49.792 +11.409 -38.603 +11.409 -49.592
07=HH_ 01 -20.487 -58.893 016.570 -1.000 0000 0 -19.880 -57.640 -21.886 -60.722

20220425.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 →

2022/20220425_ee · EE · 6 frames · 128.6 MB · 09:32:20–09:53:54 UT

Coronado H-α animations from frame sequences

No Coronado observation for this day.