Solar Images Tuesday, 21 February 2023
‹ 20.02.2023 2023 22.02.2023 ›Photosphere sunspot drawing and RDS evaluation
- Time
- 12:35 UT
- Observer
- Hikmet ÇAKMAK
- g
- 6
- f
- 45
- R
- 105
- Seeing
- 3 / 5
Sunspot groups and observation details →
Sunspot groups (from the drawing)
Group 1 · HA_ – 4
Group 2 · CAI – 11
Group 3 · EAC – 18
Group 4 · DAI – 7
Group 5 · HS_ – 1
Group 6 · HA_ – 4
RDS data file (.gzd)
[Gözlem] Tarih=21.02.2023 Saat=12:35 Gözlemci=Hikmet ÇAKMAK KontrolEden=Olcay PLEVNE Durumaçısı=-19.35 Enlemaçısı=-7.05 Boylamaçısı=46.54 Boylamfark=0 GKalite=3 GDurum=G.T , H.S Kuzeyaçısı=-0.5 Sırano=19661 AyRasatNo=16 RasatÖnceki=20.02.2023 RasatSonraki=22.02.2023 [Leke Grupları] Grupsayısı=6:4:2 LekeSayısı=45:40:5 RölatifSayı=105:80:25 01=HA_ 04 +10.884 +68.248 114.788 +0.000 0000 0 +11.951 +69.968 +09.817 +66.528 +10.884 +69.468 +10.884 +67.280 02=CAI 11 +21.375 +55.404 101.944 22.665 0000 0 +23.788 +59.280 +18.963 +51.780 +19.716 +58.200 +21.904 +52.754 03=EAC 18 +24.680 -16.840 030.456 10.574 0000 0 +26.579 -09.780 +22.781 -22.389 +25.500 -11.510 +23.700 -20.741 04=DAI 07 +24.728 -64.905 341.635 09.941 0000 0 +25.809 -60.140 +23.646 -69.795 +24.400 -61.230 +25.250 -68.154 05=HS_ 01 -13.843 +72.396 118.936 +0.000 0000 0 -12.824 +73.852 -14.861 +70.940 -13.843 +73.352 -13.843 +71.440 06=HA_ 04 -22.199 -39.634 006.906 +0.000 0000 0 -21.236 -37.888 -23.161 -41.380 -22.199 -38.388 -22.199 -40.88020230221.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 →
2023/20230221_hc · HC · 5 frames · 107.1 MB · 12:40:22–12:50:48 UT
Coronado H-α animations from frame sequences
No Coronado observation for this day.