Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 29 July 2022

‹ 28.07.2022 2022 30.07.2022 ›

Photosphere sunspot drawing and RDS evaluation

29.07.2022 photosphere drawing

High-resolution scan (3226 px)

Time
08:30 UT
Observer
Olcay PLEVNE
g
2
f
9
R
29
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HH_ – 1Group 1 · HH_ – 1 Group 2 · DAI – 8Group 2 · DAI – 8
RDS data file (.gzd) 
[Gözlem]
Tarih=29.07.2022
Saat=08:30
Gözlemci=Olcay PLEVNE
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=9.71
Enlemaçısı=5.56
Boylamaçısı=258.63
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.4
Sırano=19505
AyRasatNo=28
RasatÖnceki=28.07.2022
RasatSonraki=30.07.2022

[Leke Grupları]
Grupsayısı=2:0:2
LekeSayısı=9:0:9
RölatifSayı=29:0:29
01=HH_ 01 -23.929 +42.769 301.399 +0.000 0000 0 -23.720 +44.336 -24.786 +41.201 -23.929 +43.837 -23.929 +41.701
02=DAI 08 -14.849 -54.644 203.986 +0.000 0000 0 -13.440 -50.241 -16.258 -59.470 -14.849 -50.441 -14.849 -58.847
20220729.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 →

2022/20220729_op · OP · 4 frames · 85.7 MB · 08:33:20–08:36:51 UT

08:34:41 UT · 40 ms 08:33:20 UT · 40 ms 08:35:58 UT · 60 ms · over-exposed 08:36:51 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.