Images 16.05.2026 · Istanbul University Observatory Solar Observations

Solar Images Saturday, 16 May 2026

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3214 px)

Time: 13:30 UT
Observer: Olcay PLEVNE
g: 4
f: 9
R: 49
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · DSC – 4

Group 2 · DSI – 3

Group 3 · AX_ – 1

Group 4 · AX_ – 1

RDS data file (.gzd)

[Gözlem]
Tarih=16.05.2026
Saat=13:30
Gözlemci=Olcay PLEVNE
KontrolEden=Burçin TANIK
Durumaçısı=-20.53
Enlemaçısı=-2.52
Boylamaçısı=311.71
Boylamfark=1
GKalite=3
GDurum=B.A
Kuzeyaçısı=0.0
Sırano=20467
AyRasatNo=9
RasatÖnceki=15.05.2026
RasatSonraki=17.05.2026

[Leke Grupları]
Grupsayısı=4:2:2
LekeSayısı=9:7:2
RölatifSayı=49:27:22
01=DSC 04 +19.113 +58.961 010.671 +0.000 0000 0 +21.126 +64.730 +17.990 +53.849 +19.113 +63.873 +19.113 +54.490
02=DSI 03 +21.997 +06.941 318.651 +0.000 0000 0 +23.609 +08.817 +20.385 +05.650 +21.997 +08.617 +21.997 +05.265
03=AX_ 01 -00.645 -73.364 238.346 -1.000 0000 0 -00.645 -73.364 -00.645 -73.364
04=AX_ 01 -07.700 -74.000 237.710 -1.000 0000 0 -07.700 -74.000 -07.700 -74.000

20260516.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.