Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 28 June 2024

‹ 26.06.2024 2024 29.06.2024 ›

Photosphere sunspot drawing and RDS evaluation

28.06.2024 photosphere drawing

High-resolution scan (3230 px)

Time
10:00 UT
Observer
Ergün EGE
g
10
f
43
R
143
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HA_ – 4Group 1 · HA_ – 4 Group 2 · CSO – 3Group 2 · CSO – 3 Group 3 · CAO – 5Group 3 · CAO – 5 Group 4 · HS_ – 1Group 4 · HS_ – 1 Group 5 · HS_ – 1Group 5 · HS_ – 1 Group 6 · BXO – 4Group 6 · BXO – 4 Group 7 · FSI – 10Group 7 · FSI – 10 Group 8 · CAO – 4Group 8 · CAO – 4 Group 9 · EAI – 10Group 9 · EAI – 10 Group 10 · AX_ – 1Group 10 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=28.06.2024
Saat=10:00
Gözlemci=Ergün EGE
KontrolEden=Korhan YELKENCİ
Durumaçısı=-3.66
Enlemaçısı=2.6
Boylamaçısı=19.68
Boylamfark=1
GKalite=3
GDurum=Y.B
Kuzeyaçısı=-0.6
Sırano=20017
AyRasatNo=25
RasatÖnceki=26.06.2024
RasatSonraki=29.06.2024

[Leke Grupları]
Grupsayısı=10:1:9
LekeSayısı=43:4:39
RölatifSayı=143:14:129
01=HA_ 04 +24.965 +05.435 025.115 +0.000 0000 0 +26.910 +07.207 +23.839 +03.663 +24.965 +06.707 +24.965 +04.163
02=CSO 03 -15.879 +45.787 065.467 +0.000 0000 0 -14.524 +48.282 -17.234 +43.293 -15.879 +48.820 -15.879 +43.493
03=CAO 05 -05.491 +33.421 053.101 +0.000 0000 0 -04.689 +37.502 -06.294 +29.340 -05.491 +37.302 -05.491 +29.540
04=HS_ 01 -10.503 +07.582 027.262 +0.000 0000 0 -09.617 +08.271 -11.389 +06.893 -10.503 +07.771 -10.503 +07.393
05=HS_ 01 -14.379 +07.501 027.181 +0.000 0000 0 -13.589 +08.325 -15.169 +06.676 -14.379 +07.826 -14.379 +07.176
06=BXO 04 -17.310 -03.810 015.870 +0.000 0000 0 -15.806 -01.991 -18.814 -05.628 -17.310 -02.191 -17.310 -05.428
07=FSI 10 -18.493 -22.320 357.360 +0.000 0000 0 -15.836 -13.800 -21.150 -31.633 -18.493 -13.208 -18.493 -31.433
08=CAO 04 -26.327 -25.670 354.613 +0.000 0000 0 -25.606 -22.800 -27.470 -27.333 -26.327 -23.903 -26.327 -27.437
09=EAI 10 -04.680 -50.361 329.319 +0.000 0000 0 -01.398 -43.433 -06.739 -57.290 -04.680 -43.633 -04.680 -57.900
10=AX_ 01 -16.124 -55.550 324.130 +0.000 0000 0 -15.667 -55.930 -16.580 -56.700 -16.124 -55.665 -16.124 -55.435
20240628.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 →

2024/20240628_ee · EE · 8 frames · 171.4 MB · 10:06:15–10:20:05 UT

10:14:27 UT · 30 ms 10:20:05 UT · 60 ms 10:08:27 UT · 40 ms 10:06:15 UT · 30 ms 10:18:41 UT · 40 ms 10:10:53 UT · 50 ms · over-exposed 10:19:29 UT · 50 ms · over-exposed 10:13:48 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.