Images 27.06.2025 · Istanbul University Observatory Solar Observations

Solar Images Friday, 27 June 2025

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (2936 px)

Time: 10:00 UT
Observer: Ergün EGE
g: 8
f: 36
R: 116
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CAO – 7

Group 2 · DAI – 14

Group 3 · HR_ – 1

Group 4 · HS_ – 1

Group 5 · CSO – 3

Group 6 · BXI – 7

Group 7 · BXO – 2

Group 8 · AX_ – 1

RDS data file (.gzd)

[Gözlem]
Tarih=27.06.2025
Saat=10:00
Gözlemci=Ergün EGE
KontrolEden=Ergün EGE
Durumaçısı=-4.22
Enlemaçısı=2.46
Boylamaçısı=255.37
Boylamfark=1
GKalite=3
GDurum=
Kuzeyaçısı=-0.4
Sırano=20283
AyRasatNo=26
RasatÖnceki=26.06.2025
RasatSonraki=28.06.2025

[Leke Grupları]
Grupsayısı=8:3:5
LekeSayısı=36:22:14
RölatifSayı=116:52:64
01=CAO 07 +06.293 +39.560 294.426 +0.000 0000 0 +07.796 +43.220 +04.789 +34.892 +06.293 +43.200 +06.293 +35.920
02=DAI 14 +12.675 -38.240 217.130 +0.000 0000 0 +14.624 -34.378 +10.726 -42.102 +12.675 -34.578 +12.675 -41.902
03=HR_ 01 +20.415 -79.732 175.638 +0.000 0000 0 +21.130 -77.213 +19.700 -82.252 +20.415 -77.713 +20.415 -81.752
04=HS_ 01 -11.548 +51.458 306.828 +0.000 0000 0 -10.794 +52.224 -12.302 +50.691 -11.548 +51.724 -11.548 +51.192
05=CSO 03 -15.717 +45.281 300.651 +0.000 0000 0 -14.384 +48.660 -17.510 +41.901 -15.717 +48.460 -15.717 +42.101
06=BXI 07 -12.752 +34.589 289.959 +0.000 0000 0 -10.509 +37.968 -14.996 +31.210 -12.752 +37.768 -12.752 +31.410
07=BXO 02 -11.534 +19.284 274.654 +0.000 0000 0 -10.608 +22.287 -12.461 +16.281 -11.534 +22.870 -11.534 +16.481
08=AX_ 01 -15.611 -61.398 193.972 +0.000 0000 0 -15.101 -60.798 -16.121 -61.999 -15.611 -61.298 -15.611 -61.498

20250627.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 →

2025/20250627_ee · EE · 9 frames · 192.8 MB · 10:04:58–10:22:18 UT

10:04:58 UT · 30 ms