Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 30 October 2023

‹ 29.10.2023 2023 31.10.2023 ›

Photosphere sunspot drawing and RDS evaluation

30.10.2023 photosphere drawing

High-resolution scan (3230 px)

Time
07:20 UT
Observer
Ergün EGE
g
3
f
24
R
54
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 7Group 1 · BXI – 7 Group 2 · BXI – 6Group 2 · BXI – 6 Group 3 · DSI – 11Group 3 · DSI – 11
RDS data file (.gzd) 
[Gözlem]
Tarih=30.10.2023
Saat=07:20
Gözlemci=Ergün EGE
KontrolEden=Burçin TANIK
Durumaçısı=24.8
Enlemaçısı=4.6
Boylamaçısı=333.68
Boylamfark=3
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.1
Sırano=19859
AyRasatNo=24
RasatÖnceki=29.10.2023
RasatSonraki=31.10.2023

[Leke Grupları]
Grupsayısı=3:2:1
LekeSayısı=24:13:11
RölatifSayı=54:33:21
01=BXI 07 +20.134 +01.227 334.907 +0.000 0000 0 +21.632 +05.293 +18.636 -02.839 +20.134 +05.930 +20.134 -02.639
02=BXI 06 +16.481 -31.986 301.694 +0.000 0000 0 +17.799 -28.435 +15.164 -35.537 +16.481 -28.635 +16.481 -35.337
03=DSI 11 -17.790 -10.380 323.642 +0.000 0000 0 -15.512 -07.160 -18.645 -13.600 -17.790 -07.216 -17.790 -12.860
20231030.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 →

2023/20231030_ee · EE · 6 frames · 128.6 MB · 07:29:35–07:41:14 UT

07:41:14 UT · 30 ms 07:29:35 UT · 30 ms 07:33:18 UT · 60 ms 07:31:09 UT · 40 ms 07:32:14 UT · 50 ms 07:34:23 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.