Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 3 November 2023

‹ 01.11.2023 2023 04.11.2023 ›

Photosphere sunspot drawing and RDS evaluation

03.11.2023 photosphere drawing

High-resolution scan (3220 px)

Time
08:20 UT
Observer
Başar COŞKUNOĞLU
g
9
f
45
R
135
Seeing
4 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 2Group 1 · BXO – 2 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · AX_ – 1Group 3 · AX_ – 1 Group 4 · AX_ – 1Group 4 · AX_ – 1 Group 5 · HS_ – 5Group 5 · HS_ – 5 Group 6 · HS_ – 13Group 6 · HS_ – 13 Group 7 · AX_ – 2Group 7 · AX_ – 2 Group 8 · ESI – 13Group 8 · ESI – 13 Group 9 · HS_ – 7Group 9 · HS_ – 7
RDS data file (.gzd) 
[Gözlem]
Tarih=3.11.2023
Saat=08:20
Gözlemci=Başar COŞKUNOĞLU
KontrolEden=Burçin TANIK
Durumaçısı=24.13
Enlemaçısı=4.2
Boylamaçısı=280.38
Boylamfark=2
GKalite=4
GDurum=K.T
Kuzeyaçısı=0.0
Sırano=19862
AyRasatNo=2
RasatÖnceki=01.11.2023
RasatSonraki=04.11.2023

[Leke Grupları]
Grupsayısı=9:4:5
LekeSayısı=45:5:40
RölatifSayı=135:45:90
01=BXO 02 +20.535 +57.283 337.663 +0.000 0000 0 +20.759 +61.770 +20.311 +53.490 +20.535 +60.923 +20.535 +53.643
02=AX_ 01 +23.684 +53.756 334.136 -1.000 0000 0 +23.684 +53.756 +23.684 +53.756
03=AX_ 01 +12.708 -53.103 227.277 -1.000 0000 0 +12.708 -53.103 +12.708 -53.103
04=AX_ 01 +20.129 -73.127 207.253 -1.000 0000 0 +20.129 -73.127 +20.129 -73.127
05=HS_ 05 -17.971 +49.498 329.878 +0.000 0000 0 -16.766 +51.325 -19.176 +47.672 -17.971 +50.825 -17.971 +48.172
06=HS_ 13 -17.647 +42.478 322.858 +0.000 0000 0 -15.391 +44.633 -19.904 +40.323 -17.647 +44.133 -17.647 +40.823
07=AX_ 02 -19.832 +00.680 280.448 +0.000 0000 0 -19.375 +00.369 -20.288 -00.232 -19.832 +00.481 -19.832 +00.880
08=ESI 13 -14.461 -54.476 225.904 +0.000 0000 0 -12.505 -47.350 -16.418 -61.916 -14.461 -47.235 -14.461 -61.716
09=HS_ 07 -07.989 -79.770 201.303 +0.000 0000 0 -06.188 -70.616 -09.790 -87.537 -07.989 -71.809 -07.989 -87.730
20231103.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 →

2023/20231103_bc · BC · 3 frames · 64.3 MB · 08:45:13–08:47:01 UT

08:46:24 UT · 60 ms 08:47:01 UT · 60 ms 08:45:13 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.