Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 26 June 2022

‹ 25.06.2022 2022 27.06.2022 ›

Photosphere sunspot drawing and RDS evaluation

26.06.2022 photosphere drawing

High-resolution scan (3229 px)

Time
08:30 UT
Observer
H.ÇAKMAK=T.Y.
g
2
f
16
R
36
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · ?__ – 7Group 1 · ?__ – 7 Group 2 · CAI – 9Group 2 · CAI – 9
RDS data file (.gzd) 
[Gözlem]
Tarih=26.06.2022
Saat=08:30
Gözlemci=H.ÇAKMAK=T.Y.
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=-4.82
Enlemaçısı=2.31
Boylamaçısı=335.32
Boylamfark=2
GKalite=3
GDurum=G.T , H.S
Kuzeyaçısı=-0.3
Sırano=19473
AyRasatNo=25
RasatÖnceki=25.06.2022
RasatSonraki=27.06.2022

[Leke Grupları]
Grupsayısı=2:1:1
LekeSayısı=16:7:9
RölatifSayı=36:17:19
01=?__ 07 +16.974 +76.789 052.109 +0.000 0000 0 +18.900 +82.288 +15.470 +71.290 +16.974 +81.788 +16.974 +71.790
02=CAI 09 -12.316 -11.764 323.556 25.470 0000 0 -10.211 -08.926 -14.421 -14.602 -12.930 -09.843 -13.915 -13.746
20220626.gzd

Chromosphere (H-α) FITS frames

H-α

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 →

2022/20220626_hc · HC · 6 frames · 128.6 MB · 08:27:59–09:01:23 UT

08:34:48 UT · 20 ms 08:49:04 UT · 20 ms 08:57:38 UT · 20 ms 08:27:59 UT · 30 ms · over-exposed 08:33:25 UT · 50 ms · over-exposed 09:01:23 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.