Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 23 October 2022

‹ 22.10.2022 2022 24.10.2022 ›

Photosphere sunspot drawing and RDS evaluation

23.10.2022 photosphere drawing

High-resolution scan (3228 px)

Time
09:15 UT
Observer
Olcay PLEVNE
g
3
f
13
R
43
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 2Group 1 · BXI – 2 Group 2 · BXI – 5Group 2 · BXI – 5 Group 3 · BXI – 6Group 3 · BXI – 6
RDS data file (.gzd) 
[Gözlem]
Tarih=23.10.2022
Saat=09:15
Gözlemci=Olcay PLEVNE
KontrolEden=Korhan YELKENCİ
Durumaçısı=25.63
Enlemaçısı=5.22
Boylamaçısı=202.5
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=0.1
Sırano=19581
AyRasatNo=16
RasatÖnceki=22.10.2022
RasatSonraki=24.10.2022

[Leke Grupları]
Grupsayısı=3:0:3
LekeSayısı=13:0:13
RölatifSayı=43:0:43
01=BXI 02 -15.707 +69.259 271.759 +0.000 0000 0 -15.217 +71.840 -16.198 +66.677 -15.707 +71.340 -15.707 +67.178
02=BXI 05 -08.996 +27.839 230.339 +0.000 0000 0 -07.751 +30.800 -10.242 +25.598 -08.996 +29.880 -08.996 +25.798
03=BXI 06 -21.971 -19.527 182.973 +0.000 0000 0 -20.944 -17.758 -22.998 -21.295 -21.971 -17.958 -21.971 -21.950
20221023.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 →

2022/20221023_op · OP · 4 frames · 85.7 MB · 09:28:11–09:33:47 UT

09:30:50 UT · 30 ms 09:28:11 UT · 30 ms 09:33:47 UT · 60 ms · over-exposed 09:32:42 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.