Images 01.09.2021 · Istanbul University Observatory Solar Observations

Solar Images Wednesday, 1 September 2021

‹ 31.08.2021 2021 02.09.2021 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3231 px)

Time: 08:43 UT
Observer: Talar YONTAN
g: 3
f: 19
R: 49
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1

Group 2 · EAC – 17

Group 3 · AX_ – 1

RDS data file (.gzd)

[Gözlem]
Tarih=1.09.2021
Saat=08:43
Gözlemci=Talar YONTAN
KontrolEden=Oğuzhan ÇAKIR
Durumaçısı=21.17
Enlemaçısı=7.2
Boylamaçısı=306.63
Boylamfark=2
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=0.0
Sırano=19264
AyRasatNo=1
RasatÖnceki=31.08.2021
RasatSonraki=02.09.2021

[Leke Grupları]
Grupsayısı=3:1:2
LekeSayısı=19:1:18
RölatifSayı=49:11:38
01=AX_ 01 +18.459 +61.834 008.464 -1.000 0000 0 +18.459 +61.834 +18.459 +61.834
02=EAC 17 -27.415 +54.377 001.700 09.981 0000 0 -25.391 +59.600 -29.438 +49.155 -26.506 +58.342 -27.870 +50.568
03=AX_ 01 -17.184 +19.938 326.568 -1.000 0000 0 -17.184 +19.938 -17.184 +19.938

20210901.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 →

2021/20210901_ty · TY · 9 frames · 192.8 MB · 08:53:19–09:12:05 UT

09:07:40 UT · 30 ms