Solar Images Friday, 20 August 2021
‹ 19.08.2021 2021 21.08.2021 ›Photosphere sunspot drawing and RDS evaluation
- Time
- 07:25 UT
- Observer
- Burçin TANIK
- g
- 1
- f
- 5
- R
- 15
- Seeing
- 3 / 5
Sunspot groups and observation details →
Sunspot groups (from the drawing)
RDS data file (.gzd)
[Gözlem] Tarih=20.08.2021 Saat=07:25 Gözlemci=Burçin TANIK KontrolEden=Oğuzhan ÇAKIR Durumaçısı=17.77 Enlemaçısı=6.87 Boylamaçısı=105.9 Boylamfark=3 GKalite=3 GDurum=G.T , B.A , K.T Kuzeyaçısı=-1.1 Sırano=19252 AyRasatNo=20 RasatÖnceki=19.08.2021 RasatSonraki=21.08.2021 [Leke Grupları] Grupsayısı=1:1:0 LekeSayısı=5:5:0 RölatifSayı=15:15:0 01=CRO 05 +13.316 +17.826 123.726 07.953 0000 0 +14.206 +20.160 +12.427 +15.636 +13.316 +19.816 +12.761 +15.83620210820.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 →
2021/20210820_bto · BTO · 6 frames · 128.6 MB · 07:31:16–07:46:14 UT
Coronado H-α animations from frame sequences
No Coronado observation for this day.








