Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 30 May 2024

‹ 29.05.2024 2024 31.05.2024 ›

Photosphere sunspot drawing and RDS evaluation

30.05.2024 photosphere drawing

High-resolution scan (3230 px)

Time
09:00 UT
Observer
Süleyman FİŞEK
g
7
f
64
R
134
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CAI – 6Group 1 · CAI – 6 Group 2 · HA_ – 2Group 2 · HA_ – 2 Group 3 · FKC – 32Group 3 · FKC – 32 Group 4 · AX_ – 2Group 4 · AX_ – 2 Group 5 · AX_ – 2Group 5 · AX_ – 2 Group 6 · AX_ – 2Group 6 · AX_ – 2 Group 7 · EKC – 18Group 7 · EKC – 18
RDS data file (.gzd) 
[Gözlem]
Tarih=30.05.2024
Saat=09:00
Gözlemci=Süleyman FİŞEK
KontrolEden=Ergün EGE
Durumaçısı=-15.86
Enlemaçısı=-0.84
Boylamaçısı=44.07
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.5
Sırano=19991
AyRasatNo=22
RasatÖnceki=29.05.2024
RasatSonraki=31.05.2024

[Leke Grupları]
Grupsayısı=7:5:2
LekeSayısı=64:44:20
RölatifSayı=134:94:40
01=CAI 06 +04.702 +08.677 052.747 +0.000 0000 0 +05.746 +12.157 +03.658 +04.997 +04.702 +11.957 +04.702 +05.197
02=HA_ 02 +16.649 +08.574 052.644 +0.000 0000 0 +17.186 +09.239 +16.111 +07.909 +16.649 +08.739 +16.649 +08.409
03=FKC 32 +25.762 -11.787 032.283 14.625 0000 0 +30.649 -00.920 +20.876 -22.653 +25.590 -06.585 +28.262 -18.970
04=AX_ 02 +08.971 -24.805 019.265 +0.000 0000 0 +09.295 -23.666 +08.647 -25.944 +08.971 -24.166 +08.971 -25.444
05=AX_ 02 +22.130 -45.538 358.532 +0.000 0000 0 +22.883 -45.156 +21.376 -45.919 +22.130 -45.656 +22.130 -45.419
06=AX_ 02 -07.848 +42.525 086.595 +0.000 0000 0 -07.607 +43.220 -08.890 +42.270 -07.848 +42.500 -07.848 +42.550
07=EKC 18 -17.308 -57.104 346.966 20.120 0000 0 -14.622 -50.113 -19.995 -64.950 -15.915 -53.798 -17.816 -58.997
20240530.gzd

Chromosphere (H-α) FITS frames

H-α

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 →

2024/20240530_sf · SF · 4 frames · 85.7 MB · 09:17:55–09:20:42 UT

09:19:57 UT · 30 ms 09:17:55 UT · 30 ms 09:18:51 UT · 60 ms · over-exposed 09:20:42 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.