Images 18.05.2025 · Istanbul University Observatory Solar Observations

Solar Images Sunday, 18 May 2025

‹ 16.05.2025 2025 19.05.2025 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3230 px)

Time: 12:45 UT
Observer: Süleyman FİŞEK
g: 5
f: 15
R: 65
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HH_ – 2

Group 2 · HA_ – 2

Group 3 · CRI – 4

Group 4 · CRI – 5

RDS data file (.gzd)

[Gözlem]
Tarih=18.05.2025
Saat=12:45
Gözlemci=Süleyman FİŞEK
KontrolEden=Korhan YELKENCİ
Durumaçısı=-19.89
Enlemaçısı=-2.27
Boylamaçısı=63.22
Boylamfark=0
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.5
Sırano=20247
AyRasatNo=13
RasatÖnceki=16.05.2025
RasatSonraki=19.05.2025

[Leke Grupları]
Grupsayısı=5:3:2
LekeSayısı=15:8:7
RölatifSayı=65:38:27
01=HH_ 02 +13.400 -02.654 060.566 -1.000 0000 0 +14.898 -01.244 +11.902 -04.630
02=HA_ 02 +17.420 -09.798 053.422 -1.000 0000 0 +17.921 -09.550 +16.163 -10.541
03=CRI 04 +17.756 -35.442 027.778 +0.000 0000 0 +20.162 -33.111 +15.350 -37.772 +17.756 -33.311 +17.756 -37.572
04=CRI 05 -12.192 -30.898 032.322 +0.000 0000 0 -10.476 -29.551 -13.908 -32.246 +00.000 +00.000 +00.000 +00.000
05=HS_ 02 -12.550 -42.381 020.839 -1.000 0000 0 -11.217 -41.615 -12.894 -43.146

20250518.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.