Images 29.08.2023 · Istanbul University Observatory Solar Observations

Solar Images Tuesday, 29 August 2023

‹ 28.08.2023 2023 30.08.2023 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 08:20 UT
Observer: Korhan YELKENCİ
g: 5
f: 52
R: 102
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 1

Group 2 · CAI – 33

Group 3 · CAI – 9

Group 4 · HS_ – 1

Group 5 · DAI – 8

RDS data file (.gzd)

[Gözlem]
Tarih=29.08.2023
Saat=08:20
Gözlemci=Korhan YELKENCİ
KontrolEden=Olcay PLEVNE
Durumaçısı=20.26
Enlemaçısı=7.13
Boylamaçısı=71.37
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.5
Sırano=19806
AyRasatNo=27
RasatÖnceki=28.08.2023
RasatSonraki=30.08.2023

[Leke Grupları]
Grupsayısı=5:2:3
LekeSayısı=52:34:18
RölatifSayı=102:54:48
01=HS_ 01 +31.600 +58.440 129.810 +0.000 0000 0 +32.268 +59.373 +30.931 +57.506 +31.600 +58.873 +31.600 +58.700
02=CAI 33 +10.763 +27.804 099.174 40.497 0000 0 +13.778 +31.317 +07.749 +24.290 +13.578 +31.117 +07.949 +24.490
03=CAI 09 -08.140 +06.766 078.136 35.344 0000 0 -06.232 +09.200 -09.795 +04.332 -06.432 +09.000 -09.595 +04.532
04=HS_ 01 -18.417 -25.706 045.664 +0.000 0000 0 -17.703 -24.882 -19.132 -26.530 -18.417 -25.382 -18.417 -26.300
05=DAI 08 -07.715 -76.183 355.187 67.477 0000 0 -04.962 -70.654 -10.468 -81.711 -05.162 -71.510 -06.590 -71.644

20230829.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 →

2023/20230829_ky · KY · 14 frames · 299.9 MB · 08:55:33–09:02:02 UT

08:56:03 UT · 40 ms