Images 19.05.2026 · Istanbul University Observatory Solar Observations

Solar Images Tuesday, 19 May 2026

‹ 18.05.2026 2026 22.05.2026 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3228 px)

Time: 12:45 UT
Observer: Olcay PLEVNE
g: 4
f: 13
R: 53
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 2

Group 2 · CSI – 5

Group 3 · CSI – 4

Group 4 · AX_ – 2

RDS data file (.gzd)

[Gözlem]
Tarih=19.05.2026
Saat=12:45
Gözlemci=Olcay PLEVNE
KontrolEden=Korhan YELKENCİ
Durumaçısı=-19.66
Enlemaçısı=-2.18
Boylamaçısı=272.45
Boylamfark=0
GKalite=3
GDurum=K.T
Kuzeyaçısı=0.0
Sırano=20470
AyRasatNo=12
RasatÖnceki=18.05.2026
RasatSonraki=22.05.2026

[Leke Grupları]
Grupsayısı=4:2:2
LekeSayısı=13:7:6
RölatifSayı=53:27:26
01=BXI 02 +21.984 +45.882 318.332 +0.000 0000 0 +23.195 +48.146 +20.772 +43.617 +21.984 +47.946 +21.984 +43.817
02=CSI 05 +03.634 +06.134 278.584 +0.000 0000 0 +06.170 +10.980 +01.252 +02.170 +03.634 +09.898 +03.634 +02.370
03=CSI 04 -11.278 -30.268 242.182 +0.000 0000 0 -07.998 -25.521 -14.558 -35.160 -11.278 -25.721 -11.278 -34.816
04=AX_ 02 -02.242 -34.388 238.620 +0.000 0000 0 -01.648 -33.552 -02.836 -35.224 -02.242 -34.520 -02.242 -34.724

20260519.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.