Images 13.04.2024 · Istanbul University Observatory Solar Observations

Solar Images Saturday, 13 April 2024

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Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3231 px)

Time: 07:35 UT
Observer: Ergün EGE
g: 8
f: 28
R: 108
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HK_ – 3

Group 2 · CSI – 11

Group 3 · CAI – 3

Group 4 · CSO – 3

Group 5 · CSO – 4

Group 6 · AX_ – 1

Group 7 · AX_ – 2

Group 8 · AX_ – 1

RDS data file (.gzd)

[Gözlem]
Tarih=13.04.2024
Saat=07:35
Gözlemci=Ergün EGE
KontrolEden=Korhan YELKENCİ
Durumaçısı=-26.08
Enlemaçısı=-5.72
Boylamaçısı=305.9
Boylamfark=2
GKalite=3
GDurum=H.S
Kuzeyaçısı=-0.6
Sırano=19959
AyRasatNo=12
RasatÖnceki=12.04.2024
RasatSonraki=14.04.2024

[Leke Grupları]
Grupsayısı=8:3:5
LekeSayısı=28:17:11
RölatifSayı=108:47:61
01=HK_ 03 +07.199 +52.794 358.694 +0.000 0000 0 +09.720 +54.617 +05.326 +50.971 +07.199 +54.117 +07.199 +51.471
02=CSI 11 +24.832 +05.940 311.840 +0.000 0000 0 +26.645 +10.811 +23.200 +01.690 +24.832 +10.611 +24.832 +01.269
03=CAI 03 +19.285 -23.976 281.924 +0.000 0000 0 +20.409 -19.455 +18.160 -28.497 +19.285 -19.655 +19.285 -28.297
04=CSO 03 -08.392 +12.377 318.277 +0.000 0000 0 -07.211 +15.550 -09.573 +09.700 -08.392 +14.855 -08.392 +09.900
05=CSO 04 -20.649 -54.954 250.946 +0.000 0000 0 -19.356 -53.346 -21.942 -56.563 -20.649 -53.546 -20.649 -56.363
06=AX_ 01 -10.520 -73.781 232.119 +0.000 0000 0 -10.138 -73.351 -10.902 -74.211 -10.520 -73.851 -10.520 -73.711
07=AX_ 02 -13.298 -76.860 229.814 +0.000 0000 0 -12.970 -74.778 -13.626 -77.394 -13.298 -76.520 -13.298 -77.668
08=AX_ 01 -17.108 -80.910 224.990 +0.000 0000 0 -16.841 -79.197 -17.375 -82.623 -17.108 -79.697 -17.108 -82.123

20240413.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 →

2024/20240413_ee · EE · 10 frames · 214.3 MB · 07:43:15–07:56:25 UT

07:54:01 UT · 30 ms