Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Tuesday, 9 July 2024

‹ 08.07.2024 2024 10.07.2024 ›

Photosphere sunspot drawing and RDS evaluation

09.07.2024 photosphere drawing

High-resolution scan (3230 px)

Time
07:30 UT
Observer
Süleyman FİŞEK
g
7
f
61
R
131
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 3Group 1 · BXO – 3 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · BXO – 6Group 3 · BXO – 6 Group 4 · CSO – 6Group 4 · CSO – 6 Group 5 · EKC – 39Group 5 · EKC – 39 Group 6 · FHO – 4Group 6 · FHO – 4 Group 7 · CRO – 2Group 7 · CRO – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=9.07.2024
Saat=07:30
Gözlemci=Süleyman FİŞEK
KontrolEden=Burçin TANIK
Durumaçısı=1.27
Enlemaçısı=3.78
Boylamaçısı=235.47
Boylamfark=2
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.9
Sırano=20027
AyRasatNo=8
RasatÖnceki=08.07.2024
RasatSonraki=10.07.2024

[Leke Grupları]
Grupsayısı=7:2:5
LekeSayısı=61:4:57
RölatifSayı=131:24:107
01=BXO 03 +04.292 +49.614 285.840 +0.000 0000 0 +04.832 +52.700 +03.753 +47.221 +04.292 +51.854 +04.292 +47.374
02=AX_ 01 +08.690 -45.345 190.125 -1.000 0000 0 +08.690 -45.345 +08.690 -45.345
03=BXO 06 -17.660 +34.432 269.902 +0.000 0000 0 -16.357 +35.910 -17.776 +32.953 -17.660 +35.410 -17.660 +33.453
04=CSO 06 -21.105 +06.812 242.282 49.807 0000 0 -17.735 +09.492 -24.475 +04.132 -23.147 +08.444 -19.254 +05.147
05=EKC 39 -08.323 -25.282 210.188 02.424 0000 0 -05.335 -17.916 -11.311 -32.649 -07.500 -20.492 -07.728 -25.865
06=FHO 04 -21.852 -73.940 162.376 +0.000 0000 0 -18.892 -63.920 -24.813 -82.268 -21.852 -64.120 -21.852 -82.680
07=CRO 02 -07.854 -73.700 161.770 05.418 0000 0 -07.490 -70.250 -08.660 -77.376 -08.357 -71.865 -07.854 -77.176
20240709.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 →

2024/20240709_sf · SF · 6 frames · 128.6 MB · 08:00:09–08:06:01 UT

08:05:14 UT · 30 ms 08:03:22 UT · 30 ms 08:00:09 UT · 30 ms 08:06:01 UT · 60 ms · over-exposed 08:04:11 UT · 60 ms · over-exposed 08:02:22 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.