Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 17 June 2024

‹ 15.06.2024 2024 18.06.2024 ›

Photosphere sunspot drawing and RDS evaluation

17.06.2024 photosphere drawing

High-resolution scan (3222 px)

Time
11:00 UT
Observer
Burçin TANIK
g
7
f
85
R
155
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · EKC – 23Group 1 · EKC – 23 Group 2 · BXI – 3Group 2 · BXI – 3 Group 3 · HS_ – 1Group 3 · HS_ – 1 Group 4 · AX_ – 1Group 4 · AX_ – 1 Group 5 · EKC – 42Group 5 · EKC – 42 Group 6 · AX_ – 2Group 6 · AX_ – 2 Group 7 · CSI – 13Group 7 · CSI – 13
RDS data file (.gzd) 
[Gözlem]
Tarih=17.06.2024
Saat=11:00
Gözlemci=Burçin TANIK
KontrolEden=Olcay PLEVNE
Durumaçısı=-8.54
Enlemaçısı=1.34
Boylamaçısı=164.74
Boylamfark=1
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.6
Sırano=20007
AyRasatNo=15
RasatÖnceki=15.06.2024
RasatSonraki=18.06.2024

[Leke Grupları]
Grupsayısı=7:1:6
LekeSayısı=85:23:62
RölatifSayı=155:33:122
01=EKC 23 +09.760 -03.601 161.139 02.221 0000 0 +11.892 +01.469 +07.627 -08.670 +09.760 +01.269 +10.960 -07.438
02=BXI 03 -18.557 +59.990 224.730 +0.000 0000 0 -17.313 +62.280 -19.801 +57.951 -18.557 +61.828 -18.557 +58.151
03=HS_ 01 -07.116 +56.898 221.638 +0.000 0000 0 -06.164 +57.954 -08.680 +55.843 -07.116 +57.453 -07.116 +56.342
04=AX_ 01 -11.106 +49.364 214.104 -1.000 0000 0 -11.106 +49.364 -11.106 +49.364
05=EKC 42 -25.740 +04.270 168.767 17.416 0000 0 -21.556 +11.280 -28.592 -03.227 -24.128 +08.247 -27.163 -01.486
06=AX_ 02 -15.745 -04.515 160.225 +0.000 0000 0 -15.441 -03.973 -16.480 -05.570 -15.745 -04.216 -15.745 -04.813
07=CSI 13 -13.334 -11.993 152.747 +0.000 0000 0 -11.486 -08.416 -15.183 -15.571 -13.334 -08.616 -13.334 -15.371
20240617.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 →

2024/20240617_bto · BTO · 4 frames · 85.7 MB · 11:04:14–11:07:18 UT

11:05:25 UT · 20 ms 11:07:18 UT · 30 ms 11:04:14 UT · 50 ms · over-exposed 11:06:19 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.