Images 27.09.2021 · Istanbul University Observatory Solar Observations

Solar Images Monday, 27 September 2021

‹ 26.09.2021 2021 28.09.2021 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3233 px)

Time: 08:00 UT
Observer: Hikmet ÇAKMAK
g: 4
f: 15
R: 55
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1

Group 2 · HA_ – 6

Group 3 · AX_ – 2

Group 4 · BXO – 6

RDS data file (.gzd)

[Gözlem]
Tarih=27.09.2021
Saat=08:00
Gözlemci=Hikmet ÇAKMAK
KontrolEden=Korhan YELKENCİ
Durumaçısı=25.67
Enlemaçısı=6.88
Boylamaçısı=323.75
Boylamfark=2
GKalite=3
GDurum=G.T , H.S
Kuzeyaçısı=-0.3
Sırano=19286
AyRasatNo=23
RasatÖnceki=26.09.2021
RasatSonraki=28.09.2021

[Leke Grupları]
Grupsayısı=4:1:3
LekeSayısı=15:1:14
RölatifSayı=55:11:44
01=AX_ 01 +14.210 +20.929 344.679 -1.000 0000 0 +14.210 +20.929 +14.210 +20.929
02=HA_ 06 -27.740 +30.370 353.787 +0.000 0000 0 -25.808 +31.542 -29.672 +28.532 -27.740 +31.375 -27.740 +29.365
03=AX_ 02 -17.728 +03.661 327.411 +0.000 0000 0 -16.692 +04.111 -18.764 +03.211 -17.728 +03.611 -17.728 +03.711
04=BXO 06 -22.500 -31.579 292.171 13.355 0000 0 -21.340 -29.437 -23.670 -33.722 -21.556 -30.121 -22.283 -33.186

20210927.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 →

2021/20210927_hc · HC · 11 frames · 235.7 MB · 08:02:02–08:38:17 UT

08:05:01 UT · 70 ms