Images 20.02.2026 · Istanbul University Observatory Solar Observations

Solar Images Friday, 20 February 2026

‹ 19.02.2026 2026 21.02.2026 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 11:01 UT
Observer: Emre YILMAN
g: 3
f: 6
R: 36
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HH_ – 1

Group 2 · AX_ – 1

Group 3 · BXO – 4

RDS data file (.gzd)

[Gözlem]
Tarih=20.02.2026
Saat=11:01
Gözlemci=Emre YILMAN
KontrolEden=Burçin TANIK
Durumaçısı=-19.11
Enlemaçısı=-7.02
Boylamaçısı=354.71
Boylamfark=1
GKalite=3
GDurum=
Kuzeyaçısı=-0.4
Sırano=20423
AyRasatNo=5
RasatÖnceki=19.02.2026
RasatSonraki=21.02.2026

[Leke Grupları]
Grupsayısı=3:3:0
LekeSayısı=6:6:0
RölatifSayı=36:36:0
01=HH_ 01 +09.109 +68.549 063.259 +0.000 0000 0 +10.607 +71.850 +07.611 +66.120 +09.109 +70.914 +09.109 +66.184
02=AX_ 01 +16.309 +37.884 032.594 -1.000 0000 0 +16.309 +37.884 +16.309 +37.884
03=BXO 04 +06.914 +07.736 002.446 +0.000 0000 0 +08.274 +10.988 +05.554 +04.484 +06.914 +10.788 +06.914 +04.684

20260220.gzd

Chromosphere (H-α) FITS frames

No chromosphere observation for this day.

Coronado H-α animations from frame sequences

No Coronado observation for this day.