Images 01.06.2025 · Istanbul University Observatory Solar Observations

Solar Images Sunday, 1 June 2025

‹ 29.05.2025 2025 02.06.2025 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3224 px)

Time: 09:45 UT
Observer: Burçin TANIK
g: 6
f: 64
R: 124
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 1

Group 2 · CAO – 7

Group 3 · EKC – 29

Group 4 · HA_ – 1

Group 5 · DAO – 6

RDS data file (.gzd)

[Gözlem]
Tarih=1.06.2025
Saat=09:45
Gözlemci=Burçin TANIK
KontrolEden=Korhan YELKENCİ
Durumaçısı=-15.19
Enlemaçısı=-0.62
Boylamaçısı=239.65
Boylamfark=1
GKalite=3
GDurum=G.T , B.A , K.T
Kuzeyaçısı=0.0
Sırano=20258
AyRasatNo=1
RasatÖnceki=29.05.2025
RasatSonraki=02.06.2025

[Leke Grupları]
Grupsayısı=6:5:1
LekeSayısı=64:44:20
RölatifSayı=124:94:30
01=HS_ 01 +06.506 +66.907 306.557 -1.000 0000 0 +07.261 +67.832 +05.751 +65.982
02=CAO 07 +04.110 +19.935 259.585 22.331 0000 0 +05.523 +22.888 +02.500 +16.982 +03.199 +22.252 +04.715 +18.556
03=EKC 29 +10.170 +07.513 247.163 32.705 0000 0 +15.500 +13.523 +04.985 +01.503 +08.520 +09.251 +11.918 +03.210
04=HA_ 01 +09.916 -00.987 238.663 -1.000 0000 0 +10.689 -00.403 +09.142 -01.572
05=DAO 06 +05.392 -23.547 216.103 +0.000 0000 0 +06.617 -20.821 +04.166 -26.272 +05.392 -21.210 +05.392 -26.720
06=DKI 20 -13.859 +15.200 254.652 31.664 0000 0 -12.810 +17.508 -15.636 +12.496 -13.253 +16.175 -14.822 +13.630

20250601.gzd

Chromosphere (H-α) FITS frames

The images are made automatically with a fixed, gentle rule: uneven illumination and most of the limb darkening are removed, and the brightness is shown on a linear scale (no sharpening); prominences get their own scale outside the limb. Frames are ordered by sharpness (seeing); frames without the Sun (darks, bias) come last. Method →

2025/20250601_bto · BTO · 2 frames · 42.9 MB · 10:03:41–10:05:15 UT

10:05:15 UT · 30 ms

10:03:41 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.