Solar Images Saturday, 17 July 2021
‹ 16.07.2021 2021 18.07.2021 ›Photosphere sunspot drawing and RDS evaluation
- Time
- 09:45 UT
- Observer
- Başar COŞKUNOĞLU
- g
- 3
- f
- 12
- R
- 42
- Seeing
- 3 / 5
Sunspot groups and observation details →
Sunspot groups (from the drawing)
RDS data file (.gzd)
[Gözlem] Tarih=17.07.2021 Saat=09:45 Gözlemci=Başar COŞKUNOĞLU KontrolEden=Olcay PLEVNE Durumaçısı=4.75 Enlemaçısı=4.55 Boylamaçısı=194.24 Boylamfark=1 GKalite=3 GDurum= Kuzeyaçısı=-0.5 Sırano=19218 AyRasatNo=16 RasatÖnceki=16.07.2021 RasatSonraki=18.07.2021 [Leke Grupları] Grupsayısı=3:1:2 LekeSayısı=12:9:3 RölatifSayı=42:19:23 01=CSI 09 +25.802 +04.711 198.951 36.996 0000 0 +27.266 +06.587 +24.339 +02.835 +26.721 +05.790 +24.846 +03.299 02=BXO 02 -15.274 -03.859 190.381 +0.000 0000 0 -14.958 -02.196 -15.591 -05.522 -15.274 -02.696 -15.274 -05.220 03=AX_ 01 -43.340 -54.259 139.981 -1.000 0000 0 -43.340 -54.259 -43.340 -54.25920210717.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 →
2021/20210717_bc · BC · 6 frames · 128.6 MB · 10:23:45–10:27:49 UT
Coronado H-α animations from frame sequences
No Coronado observation for this day.