Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 6 October 2023

‹ 05.10.2023 2023 07.10.2023 ›

Photosphere sunspot drawing and RDS evaluation

06.10.2023 photosphere drawing

High-resolution scan (3220 px)

Time
09:50 UT
Observer
Başar COŞKUNOĞLU
g
9
f
43
R
133
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · DSI – 5Group 2 · DSI – 5 Group 3 · BXI – 15Group 3 · BXI – 15 Group 4 · HS_ – 7Group 4 · HS_ – 7 Group 5 · AX_ – 5Group 5 · AX_ – 5 Group 6 · BXI – 4Group 6 · BXI – 4 Group 7 · AX_ – 1Group 7 · AX_ – 1 Group 8 · BXI – 4Group 8 · BXI – 4 Group 9 · AX_ – 1Group 9 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=6.10.2023
Saat=09:50
Gözlemci=Başar COŞKUNOĞLU
KontrolEden=Ergün EGE
Durumaçısı=26.19
Enlemaçısı=6.47
Boylamaçısı=288.87
Boylamfark=1
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.5
Sırano=19840
AyRasatNo=5
RasatÖnceki=05.10.2023
RasatSonraki=07.10.2023

[Leke Grupları]
Grupsayısı=9:6:3
LekeSayısı=43:37:6
RölatifSayı=133:97:36
01=AX_ 01 +14.870 +68.564 357.434 -1.000 0000 0 +14.870 +68.564 +14.870 +68.564
02=DSI 05 +09.569 +19.249 308.119 40.553 0000 0 +11.523 +21.281 +07.614 +17.218 +10.936 +20.705 +08.618 +17.993
03=BXI 15 +16.912 +14.392 303.262 +0.000 0000 0 +18.310 +17.276 +15.792 +11.508 +16.912 +17.760 +16.912 +11.708
04=HS_ 07 +11.855 +12.231 301.101 +0.000 0000 0 +13.248 +13.499 +10.462 +10.963 +11.855 +12.999 +11.855 +11.463
05=AX_ 05 +19.129 +08.310 297.180 +0.000 0000 0 +20.110 +09.110 +18.248 +07.610 +19.129 +08.560 +19.129 +08.600
06=BXI 04 +08.111 -68.886 219.984 32.709 0000 0 +09.466 -65.972 +06.755 -71.800 +07.103 -66.408 +09.250 -72.546
07=AX_ 01 -16.524 +42.948 331.818 -1.000 0000 0 -16.524 +42.948 -16.524 +42.948
08=BXI 04 -09.161 -07.523 281.347 +0.000 0000 0 -08.590 -05.665 -09.733 -09.380 -09.161 -06.165 -09.161 -08.880
09=AX_ 01 -08.941 -47.431 241.439 -1.000 0000 0 -08.941 -47.431 -08.941 -47.431
20231006.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 →

2023/20231006_bc · BC · 6 frames · 128.6 MB · 10:03:52–10:07:13 UT

10:05:24 UT · 40 ms 10:03:52 UT · 40 ms 10:04:48 UT · 40 ms 10:06:37 UT · 60 ms · over-exposed 10:06:01 UT · 60 ms · over-exposed 10:07:13 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.