Images 07.09.2021 · Istanbul University Observatory Solar Observations

Solar Images Tuesday, 7 September 2021

‹ 06.09.2021 2021 08.09.2021 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3228 px)

Time: 07:00 UT
Observer: Korhan YELKENCİ
g: 4
f: 47
R: 87
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · EAI – 8

Group 2 · HS_ – 2

Group 3 · EAC – 14

Group 4 · DAC – 23

RDS data file (.gzd)

[Gözlem]
Tarih=7.09.2021
Saat=07:00
Gözlemci=Korhan YELKENCİ
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=22.56
Enlemaçısı=7.25
Boylamaçısı=228.33
Boylamfark=3
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.6
Sırano=19270
AyRasatNo=7
RasatÖnceki=06.09.2021
RasatSonraki=08.09.2021

[Leke Grupları]
Grupsayısı=4:1:3
LekeSayısı=47:8:39
RölatifSayı=87:18:69
01=EAI 08 +24.808 +20.683 249.130 22.746 0000 0 +27.730 +25.795 +22.542 +15.570 +26.873 +25.595 +22.780 +15.770
02=HS_ 02 -15.582 +29.745 258.750 +0.000 0000 0 -14.678 +30.712 -16.486 +28.777 -15.582 +30.213 -15.582 +29.278
03=EAC 14 -20.295 -16.820 212.248 18.371 0000 0 -18.427 -10.828 -22.162 -21.335 -18.627 -11.280 -21.962 -21.135
04=DAC 23 -16.150 -31.540 196.790 29.394 0000 0 -13.787 -27.725 -18.243 -35.355 -13.987 -27.925 -18.430 -35.155

20210907.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 →

2021/20210907_ky · KY · 18 frames · 385.6 MB · 07:32:38–07:41:21 UT

07:33:41 UT · 30 ms