Images 22.10.2021 · Istanbul University Observatory Solar Observations

Solar Images Friday, 22 October 2021

‹ 21.10.2021 2021 23.10.2021 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 07:25 UT
Observer: Süleyman FİŞEK
g: 4
f: 10
R: 50
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 4

Group 2 · HH_ – 1

Group 3 · BXO – 2

Group 4 · CAI – 3

RDS data file (.gzd)

[Gözlem]
Tarih=22.10.2021
Saat=07:25
Gözlemci=Süleyman FİŞEK
KontrolEden=Özgecan ÖNALTAŞ
Durumaçısı=25.71
Enlemaçısı=5.29
Boylamaçısı=354.25
Boylamfark=3
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.5
Sırano=19304
AyRasatNo=15
RasatÖnceki=21.10.2021
RasatSonraki=23.10.2021

[Leke Grupları]
Grupsayısı=4:1:3
LekeSayısı=10:4:6
RölatifSayı=50:14:36
01=BXI 04 +24.407 -36.302 317.948 +0.000 0000 0 +24.894 -33.800 +23.920 -38.804 +24.407 -34.300 +24.407 -38.304
02=HH_ 01 -17.861 -21.124 333.126 +0.000 0000 0 -16.821 -19.896 -18.902 -22.351 -17.861 -20.396 -17.861 -21.852
03=BXO 02 -27.559 -76.799 277.451 +0.000 0000 0 -27.143 -73.604 -27.975 -79.993 -27.559 -74.105 -27.559 -79.493
04=CAI 03 -22.342 -77.166 277.840 +0.000 0000 0 -20.767 -70.699 -23.917 -83.634 -22.342 -70.899 -22.342 -83.434

20211022.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 →

2021/20211022_sf · SF · 17 frames · 364.2 MB · 07:35:19–07:52:39 UT

07:47:12 UT · 40 ms