Images 10.07.2021 · Istanbul University Observatory Solar Observations

Solar Images Saturday, 10 July 2021

‹ 09.07.2021 2021 11.07.2021 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3232 px)

Time: 08:10 UT
Observer: Hikmet ÇAKMAK
g: 3
f: 4
R: 34
Seeing: 4 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · ?__ – 1

Group 2 · AX_ – 1

Group 3 · AX_ – 2

RDS data file (.gzd)

[Gözlem]
Tarih=10.07.2021
Saat=08:10
Gözlemci=Hikmet ÇAKMAK
KontrolEden=Burçin TANIK
Durumaçısı=1.61
Enlemaçısı=3.86
Boylamaçısı=287.74
Boylamfark=2
GKalite=4
GDurum=G.T
Kuzeyaçısı=-0.1
Sırano=19211
AyRasatNo=9
RasatÖnceki=09.07.2021
RasatSonraki=11.07.2021

[Leke Grupları]
Grupsayısı=3:1:2
LekeSayısı=4:1:3
RölatifSayı=34:11:23
01=?__ 01 +23.626 -83.919 203.821 +0.000 0000 0 +24.312 -82.986 +22.941 -84.852 +23.626 -83.486 +23.626 -84.352
02=AX_ 01 -22.340 +25.602 313.342 -1.000 0000 0 -22.340 +25.602 -22.340 +25.602
03=AX_ 02 -18.184 -54.640 233.100 +0.000 0000 0 -17.741 -53.730 -18.628 -55.551 -18.184 -54.229 -18.184 -55.500

20210710.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 →

2021/20210710_hc · HC · 17 frames · 364.3 MB · 08:08:18–09:27:08 UT

08:09:39 UT · 30 ms