Solar Images Thursday, 15 April 2021

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Photosphere sunspot drawing and RDS evaluation

15.04.2021 photosphere drawing

High-resolution scan (3229 px)

Time
07:15 UT
Observer
Süleyman FİŞEK
g
2
f
16
R
36
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

RDS data file (.gzd)
[Gözlem]
Tarih=15.04.2021
Saat=07:15
Gözlemci=Süleyman FİŞEK
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=-25.99
Enlemaçısı=-5.59
Boylamaçısı=345.83
Boylamfark=3
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.4
Sırano=19163
AyRasatNo=9
RasatÖnceki=14.04.2021
RasatSonraki=16.04.2021

[Leke Grupları]
Grupsayısı=2:0:2
LekeSayısı=16:0:16
RölatifSayı=36:0:36
01=CRI 15 -22.539 +20.564 006.394 +0.000 0000 0 -20.836 +23.370 -24.242 +17.758 -22.539 +23.170 -22.539 +17.958
02=AX_ 01 -20.889 -01.552 344.278 -1.000 0000 0 -20.889 -01.552 -20.889 -01.552
20210415.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 →

2021/20210415_sf · SF · 3 frames · 64.3 MB · 07:55:54–07:59:16 UT

Coronado H-α animations from frame sequences

No Coronado observation for this day.