Images 05.08.2021 · Istanbul University Observatory Solar Observations

Solar Images Thursday, 5 August 2021

‹ 04.08.2021 2021 06.08.2021 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3231 px)

Time: 07:27 UT
Observer: Süleyman FİŞEK
g: 3
f: 8
R: 38
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · ?__ – 3

Group 2 · BXO – 2

Group 3 · BXI – 3

RDS data file (.gzd)

[Gözlem]
Tarih=5.08.2021
Saat=07:27
Gözlemci=Süleyman FİŞEK
KontrolEden=Süleyman FİŞEK
Durumaçısı=12.54
Enlemaçısı=6.08
Boylamaçısı=304.17
Boylamfark=3
GKalite=3
GDurum=G.T
Kuzeyaçısı=-1.3
Sırano=19237
AyRasatNo=5
RasatÖnceki=04.08.2021
RasatSonraki=06.08.2021

[Leke Grupları]
Grupsayısı=3:1:2
LekeSayısı=8:3:5
RölatifSayı=38:13:25
01=?__ 03 +15.815 -03.478 300.692 +0.000 0000 0 +16.187 -02.422 +15.443 -04.533 +15.815 -02.922 +15.815 -04.330
02=BXO 02 -30.223 +58.695 002.865 +0.000 0000 0 -29.801 +61.261 -30.645 +56.129 -30.223 +60.761 -30.223 +56.629
03=BXI 03 -09.939 -52.709 251.461 +0.000 0000 0 -09.373 -50.211 -10.506 -55.206 -09.939 -50.711 -09.939 -54.707

20210805.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 →

2021/20210805_sf · SF · 13 frames · 278.5 MB · 07:31:33–07:57:52 UT

07:35:47 UT · 40 ms