Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Saturday, 29 January 2022

‹ 28.01.2022 2022 30.01.2022 ›

Photosphere sunspot drawing and RDS evaluation

29.01.2022 photosphere drawing

High-resolution scan (3233 px)

Time
09:55 UT
Observer
Özgecan ÖNALTAŞ
g
4
f
50
R
90
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 4Group 1 · BXI – 4 Group 2 · DKC – 40Group 2 · DKC – 40 Group 3 · HS_ – 1Group 3 · HS_ – 1 Group 4 · BXI – 5Group 4 · BXI – 5
RDS data file (.gzd) 
[Gözlem]
Tarih=29.01.2022
Saat=09:55
Gözlemci=Özgecan ÖNALTAŞ
KontrolEden=Burçin TANIK
Durumaçısı=-11.07
Enlemaçısı=-5.81
Boylamaçısı=128.42
Boylamfark=1
GKalite=3
GDurum=B.A , Y.B , H.S
Kuzeyaçısı=0.0
Sırano=19364
AyRasatNo=14
RasatÖnceki=28.01.2022
RasatSonraki=30.01.2022

[Leke Grupları]
Grupsayısı=4:2:2
LekeSayısı=50:44:6
RölatifSayı=90:64:26
01=BXI 04 +27.724 +49.463 177.883 14.394 0000 0 +28.896 +52.804 +26.552 +46.121 +26.841 +51.457 +28.400 +46.919
02=DKC 40 +16.431 -13.617 114.803 08.234 0000 0 +19.176 -08.100 +13.687 -19.133 +17.452 -09.259 +16.237 -17.683
03=HS_ 01 -24.916 +41.269 169.689 +0.000 0000 0 -23.919 +42.130 -25.914 +40.408 -24.916 +41.630 -24.916 +40.908
04=BXI 05 -20.392 +30.417 158.837 19.427 0000 0 -18.168 +34.115 -22.615 +26.719 -19.130 +33.447 -21.810 +27.570
20220129.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 →

2022/20220129_ot · OT · 2 frames · 42.9 MB · 10:37:08–10:38:17 UT

10:38:17 UT · 60 ms 10:37:08 UT · 90 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.