Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 5 October 2023

‹ 04.10.2023 2023 06.10.2023 ›

Photosphere sunspot drawing and RDS evaluation

05.10.2023 photosphere drawing

High-resolution scan (3237 px)

Time
07:50 UT
Observer
Burçin TANIK
g
9
f
70
R
160
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 1Group 1 · HS_ – 1 Group 2 · AX_ – 5Group 2 · AX_ – 5 Group 3 · ESC – 36Group 3 · ESC – 36 Group 4 · DSI – 11Group 4 · DSI – 11 Group 5 · CAI – 10Group 5 · CAI – 10 Group 6 · AX_ – 1Group 6 · AX_ – 1 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=5.10.2023
Saat=07:50
Gözlemci=Burçin TANIK
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=26.15
Enlemaçısı=6.53
Boylamaçısı=303.16
Boylamfark=2
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-0.8
Sırano=19839
AyRasatNo=4
RasatÖnceki=04.10.2023
RasatSonraki=06.10.2023

[Leke Grupları]
Grupsayısı=9:4:5
LekeSayısı=70:53:17
RölatifSayı=160:93:67
01=HS_ 01 +14.200 +49.397 352.557 +0.000 0000 0 +14.749 +50.162 +13.256 +48.633 +14.200 +49.661 +14.200 +49.132
02=AX_ 05 +10.392 +35.820 338.242 +0.000 0000 0 +11.231 +35.746 +09.553 +34.418 +10.392 +35.984 +10.392 +35.656
03=ESC 36 +10.470 -01.181 301.979 18.527 0000 0 +12.598 -07.900 +07.497 +04.728 +08.446 +02.865 +11.423 -06.600
04=DSI 11 +16.706 -04.516 298.644 12.962 0000 0 +18.425 +00.227 +14.988 -09.259 +15.722 -00.551 +17.565 -08.587
05=CAI 10 -18.270 +25.957 329.117 12.151 0000 0 -15.813 +32.305 -20.242 +19.608 -17.450 +30.493 -19.673 +20.107
06=AX_ 01 -31.608 +25.604 328.764 -1.000 0000 0 -31.608 +25.604 -31.608 +25.604
07=AX_ 01 -12.191 -06.155 297.500 -1.000 0000 0 -12.191 -06.155 -12.191 -06.155
08=BXI 04 -10.967 -20.580 283.102 +0.000 0000 0 -10.338 -18.383 -11.596 -21.733 -10.967 -19.405 -10.967 -21.755
09=AX_ 01 -11.263 -59.762 243.398 -1.000 0000 0 -11.263 -59.762 -11.263 -59.762
20231005.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 →

2023/20231005_bto · BTO · 6 frames · 128.6 MB · 08:20:21–08:26:05 UT

08:22:50 UT · 30 ms 08:26:05 UT · 30 ms 08:24:13 UT · 40 ms 08:20:21 UT · 60 ms · over-exposed 08:25:07 UT · 70 ms · over-exposed 08:21:52 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.