Images 17.06.2025 · Istanbul University Observatory Solar Observations

Solar Images Tuesday, 17 June 2025

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3218 px)

Time: 10:30 UT
Observer: Olcay PLEVNE
g: 5
f: 50
R: 100
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 5

Group 2 · AX_ – 3

Group 3 · EKC – 30

Group 4 · EHO – 8

Group 5 · CAO – 4

RDS data file (.gzd)

[Gözlem]
Tarih=17.06.2025
Saat=10:30
Gözlemci=Olcay PLEVNE
KontrolEden=Burçin TANIK
Durumaçısı=-8.65
Enlemaçısı=1.3
Boylamaçısı=27.46
Boylamfark=1
GKalite=3
GDurum=K.T
Kuzeyaçısı=0.0
Sırano=20273
AyRasatNo=16
RasatÖnceki=16.06.2025
RasatSonraki=18.06.2025

[Leke Grupları]
Grupsayısı=5:4:1
LekeSayısı=50:46:4
RölatifSayı=100:86:14
01=HS_ 05 +14.912 +29.525 056.985 -1.000 0000 0 +16.487 +32.255 +13.338 +26.795
02=AX_ 03 +10.127 +12.928 040.388 +0.000 0000 0 +10.736 +13.872 +09.518 +11.985 +10.127 +13.372 +10.127 +12.485
03=EKC 30 +18.823 +04.401 031.861 23.505 0000 0 +22.939 +10.769 +14.706 -01.968 +16.178 +07.894 +19.377 +00.511
04=EHO 08 +20.636 -09.722 017.738 +0.000 0000 0 +23.240 -03.637 +18.248 -15.808 +20.636 -03.837 +20.636 -15.608
05=CAO 04 -11.328 +05.135 032.595 +0.000 0000 0 -09.985 +09.625 -12.671 +00.645 -11.328 +09.425 -11.328 +00.845

20250617.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.