Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 16 June 2023

‹ 15.06.2023 2023 17.06.2023 ›

Photosphere sunspot drawing and RDS evaluation

16.06.2023 photosphere drawing

High-resolution scan (3224 px)

Time
09:30 UT
Observer
Başar COŞKUNOĞLU
g
7
f
66
R
136
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 3Group 1 · BXO – 3 Group 2 · AX_ – 2Group 2 · AX_ – 2 Group 3 · DSO – 2Group 3 · DSO – 2 Group 4 · HS_ – 2Group 4 · HS_ – 2 Group 5 · DSC – 24Group 5 · DSC – 24 Group 6 · DSC – 25Group 6 · DSC – 25 Group 7 · CSI – 8Group 7 · CSI – 8
RDS data file (.gzd) 
[Gözlem]
Tarih=16.06.2023
Saat=09:30
Gözlemci=Başar COŞKUNOĞLU
KontrolEden=Ergün EGE
Durumaçısı=-9.32
Enlemaçısı=1.12
Boylamaçısı=329.59
Boylamfark=1
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.4
Sırano=19736
AyRasatNo=14
RasatÖnceki=15.06.2023
RasatSonraki=17.06.2023

[Leke Grupları]
Grupsayısı=7:3:4
LekeSayısı=66:7:59
RölatifSayı=136:37:99
01=BXO 03 +28.161 +35.997 005.587 +0.000 0000 0 +29.203 +37.840 +27.120 +34.154 +28.161 +37.640 +28.161 +34.354
02=AX_ 02 +19.219 +20.302 349.892 +0.000 0000 0 +19.423 +21.257 +19.150 +19.347 +19.219 +20.757 +19.219 +19.847
03=DSO 02 +11.352 -69.291 260.299 +0.000 0000 0 +12.107 -64.410 +10.597 -74.540 +11.352 -64.726 +11.352 -73.856
04=HS_ 02 -22.226 +43.280 012.618 +0.000 0000 0 -21.326 +44.860 -23.127 +41.969 -22.226 +44.225 -22.226 +42.334
05=DSC 24 -09.532 -18.508 311.820 14.182 0000 0 -07.751 -13.360 -11.313 -23.979 -08.366 -13.482 -10.866 -23.432
06=DSC 25 -13.696 -46.555 283.350 07.971 0000 0 -11.953 -40.520 -15.440 -52.589 -14.289 -41.245 -12.779 -52.960
07=CSI 08 -20.579 -53.700 276.520 +0.000 0000 0 -19.285 -48.831 -21.873 -57.310 -20.579 -49.310 -20.579 -57.110
20230616.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 →

2023/20230616_bc · BC · 6 frames · 128.6 MB · 10:04:48–10:08:10 UT

10:06:16 UT · 40 ms 10:05:42 UT · 40 ms 10:04:48 UT · 40 ms 10:06:56 UT · 70 ms · over-exposed 10:07:31 UT · 70 ms · over-exposed 10:08:10 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.