Solar Images Thursday, 15 April 2021
‹ 14.04.2021 2021 16.04.2021 ›Photosphere sunspot drawing and RDS evaluation
- 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 -01.55220210415.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 →
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.





