Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 12 June 2024

‹ 11.06.2024 2024 13.06.2024 ›

Photosphere sunspot drawing and RDS evaluation

12.06.2024 photosphere drawing

High-resolution scan (3230 px)

Time
10:45 UT
Observer
Burçin TANIK
g
8
f
39
R
119
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 1Group 1 · HS_ – 1 Group 2 · ?__ – 6Group 2 · ?__ – 6 Group 3 · HA_ – 3Group 3 · HA_ – 3 Group 4 · CAI – 16Group 4 · CAI – 16 Group 5 · ?__ – 4Group 5 · ?__ – 4 Group 6 · CKI – 6Group 6 · CKI – 6 Group 7 · HR_ – 1Group 7 · HR_ – 1 Group 8 · ?__ – 2Group 8 · ?__ – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=12.06.2024
Saat=10:45
Gözlemci=Burçin TANIK
KontrolEden=Süleyman FİŞEK
Durumaçısı=-10.68
Enlemaçısı=0.74
Boylamaçısı=231.06
Boylamfark=1
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.3
Sırano=20003
AyRasatNo=11
RasatÖnceki=11.06.2024
RasatSonraki=13.06.2024

[Leke Grupları]
Grupsayısı=8:1:7
LekeSayısı=39:1:38
RölatifSayı=119:11:108
01=HS_ 01 +16.759 +53.752 284.812 +0.000 0000 0 +17.566 +54.756 +15.952 +52.748 +16.759 +54.256 +16.759 +53.248
02=?__ 06 -15.625 +11.715 242.775 +0.000 0000 0 -13.411 +13.190 -17.840 +10.240 -15.625 +12.690 -15.625 +10.740
03=HA_ 03 -21.340 -02.660 228.994 +0.000 0000 0 -20.403 -01.343 -22.277 -02.788 -21.340 -02.438 -21.340 -02.883
04=CAI 16 -10.695 -10.501 220.559 36.389 0000 0 -07.381 -06.369 -14.900 -14.634 -08.703 -07.338 -13.341 -13.657
05=?__ 04 -09.675 -20.137 210.923 +0.000 0000 0 -08.257 -18.740 -11.940 -21.534 -09.675 -19.240 -09.675 -21.340
06=CKI 06 -24.682 -60.154 170.906 24.300 0000 0 -22.635 -56.676 -26.729 -63.633 -23.724 -57.245 -26.800 -62.540
07=HR_ 01 -15.824 -71.447 159.613 +0.000 0000 0 -15.630 -70.195 -16.586 -72.699 -15.824 -70.695 -15.824 -72.199
08=?__ 02 -13.532 -75.551 155.509 +0.000 0000 0 -12.402 -72.168 -14.662 -78.934 -13.532 -72.668 -13.532 -78.434
20240612.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 →

2024/20240612_bto · BTO · 2 frames · 42.9 MB · 10:56:51–10:58:02 UT

10:58:02 UT · 30 ms 10:56:51 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.