Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 16 November 2023

‹ 14.11.2023 2023 21.11.2023 ›

Photosphere sunspot drawing and RDS evaluation

16.11.2023 photosphere drawing

High-resolution scan (3233 px)

Time
10:35 UT
Observer
Hikmet ÇAKMAK
g
3
f
5
R
35
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · BXO – 2Group 2 · BXO – 2 Group 3 · DAI – 2Group 3 · DAI – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=16.11.2023
Saat=10:35
Gözlemci=Hikmet ÇAKMAK
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=21.08
Enlemaçısı=2.74
Boylamaçısı=107.75
Boylamfark=1
GKalite=3
GDurum=G.T , B.A , H.S
Kuzeyaçısı=0.0
Sırano=19873
AyRasatNo=13
RasatÖnceki=14.11.2023
RasatSonraki=21.11.2023

[Leke Grupları]
Grupsayısı=3:1:2
LekeSayısı=5:1:4
RölatifSayı=35:11:24
01=AX_ 01 +29.896 -59.869 047.881 -1.000 0000 0 +29.896 -59.869 +29.896 -59.869
02=BXO 02 -16.748 +64.201 171.951 +0.000 0000 0 -16.440 +65.838 -17.560 +62.565 -16.748 +65.337 -16.748 +63.640
03=DAI 02 -09.374 +51.365 159.115 10.377 0000 0 -08.121 +54.934 -10.626 +47.797 -09.747 +54.710 -08.813 +48.960
20231116.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 →

2023/20231116_hc · HC · 5 frames · 107.1 MB · 10:41:20–10:51:07 UT

10:45:07 UT · 30 ms 10:50:17 UT · 30 ms 10:41:20 UT · 30 ms 10:51:07 UT · 70 ms · over-exposed 10:43:46 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.