Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 14 April 2022

‹ 13.04.2022 2022 15.04.2022 ›

Photosphere sunspot drawing and RDS evaluation

14.04.2022 photosphere drawing

High-resolution scan (3226 px)

Time
10:00 UT
Observer
Burçin TANIK
g
3
f
10
R
40
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DRI – 6Group 1 · DRI – 6 Group 2 · CRO – 3Group 2 · CRO – 3 Group 3 · HS_ – 1Group 3 · HS_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=14.04.2022
Saat=10:00
Gözlemci=Burçin TANIK
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=-26.05
Enlemaçısı=-5.68
Boylamaçısı=219.96
Boylamfark=1
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-1.0
Sırano=19409
AyRasatNo=10
RasatÖnceki=13.04.2022
RasatSonraki=15.04.2022

[Leke Grupları]
Grupsayısı=3:2:1
LekeSayısı=10:9:1
RölatifSayı=40:29:11
01=DRI 06 +14.952 -41.296 178.664 10.439 0000 0 +15.829 -38.433 +14.760 -44.160 +15.238 -38.778 +14.284 -43.960
02=CRO 03 +18.338 -54.350 165.610 20.991 0000 0 +19.630 -51.107 +17.470 -57.594 +17.247 -51.691 +19.430 -57.394
03=HS_ 01 -23.913 -71.896 148.640 +0.000 0000 0 -23.150 -70.702 -24.676 -73.890 -23.913 -70.802 -23.913 -72.990
20220414.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 →

2022/20220414_bto · BTO · 5 frames · 107.1 MB · 10:06:45–10:13:26 UT

10:13:26 UT · 30 ms 10:06:45 UT · 50 ms 10:08:41 UT · 60 ms · over-exposed 10:10:14 UT · 30 ms 10:12:02 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.