Solar Images Thursday, 20 May 2021

‹ 19.05.2021 2021 24.05.2021 ›

Photosphere sunspot drawing and RDS evaluation

20.05.2021 photosphere drawing

High-resolution scan (3230 px)

Time
07:25 UT
Observer
Süleyman FİŞEK
g
2
f
7
R
27
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

RDS data file (.gzd)
[Gözlem]
Tarih=20.05.2021
Saat=07:25
Gözlemci=Süleyman FİŞEK
KontrolEden=Ergün EGE
Durumaçısı=-19.36
Enlemaçısı=-2.06
Boylamaçısı=243.14
Boylamfark=3
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.4
Sırano=19175
AyRasatNo=4
RasatÖnceki=19.05.2021
RasatSonraki=24.05.2021

[Leke Grupları]
Grupsayısı=2:1:1
LekeSayısı=7:4:3
RölatifSayı=27:14:13
01=CHI 04 +18.640 -49.344 193.796 26.688 0000 0 +19.922 -47.209 +17.358 -51.479 +18.502 -48.809 +19.657 -51.107
02=AX_ 03 -15.965 -13.930 230.470 -1.000 0000 0 -15.328 -12.305 -16.601 -13.880
20210520.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 →

2021/20210520_sf · SF · 19 frames · 407.1 MB · 07:49:12–08:12:14 UT

Coronado H-α animations from frame sequences

No Coronado observation for this day.