Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 3 December 2021

‹ 02.12.2021 2021 05.12.2021 ›

Photosphere sunspot drawing and RDS evaluation

03.12.2021 photosphere drawing

High-resolution scan (3226 px)

Time
08:10 UT
Observer
Olcay PLEVNE
g
3
f
8
R
38
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 6Group 1 · BXO – 6 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · AX_ – 1Group 3 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=3.12.2021
Saat=08:10
Gözlemci=Olcay PLEVNE
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=15.11
Enlemaçısı=0.59
Boylamaçısı=160.13
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.6
Sırano=19334
AyRasatNo=3
RasatÖnceki=02.12.2021
RasatSonraki=05.12.2021

[Leke Grupları]
Grupsayısı=3:1:2
LekeSayısı=8:6:2
RölatifSayı=38:16:22
01=BXO 06 +18.244 +36.232 196.362 28.691 0000 0 +20.540 +40.860 +15.949 +32.377 +16.264 +39.535 +19.996 +32.689
02=AX_ 01 -23.865 +76.876 237.600 -1.000 0000 0 -23.865 +76.876 -23.865 +76.876
03=AX_ 01 -26.522 +69.672 229.802 -1.000 0000 0 -26.522 +69.672 -26.522 +69.672
20211203.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 →

2021/20211203_op · OP · 4 frames · 85.7 MB · 08:14:55–08:18:40 UT

08:14:55 UT · 40 ms 08:16:51 UT · 40 ms 08:17:41 UT · 60 ms · over-exposed 08:18:40 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.