Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 21 March 2022

‹ 19.03.2022 2022 22.03.2022 ›

Photosphere sunspot drawing and RDS evaluation

21.03.2022 photosphere drawing

High-resolution scan (3233 px)

Time
09:00 UT
Observer
Hikmet ÇAKMAK
g
4
f
15
R
55
Seeing
3 / 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 · BXI – 10Group 3 · BXI – 10 Group 4 · ?__ – 2Group 4 · ?__ – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=21.03.2022
Saat=09:00
Gözlemci=Hikmet ÇAKMAK
KontrolEden=Oğuzhan ÇAKIR
Durumaçısı=-25.28
Enlemaçısı=-7.01
Boylamaçısı=177.15
Boylamfark=2
GKalite=3
GDurum=G.T , B.A
Kuzeyaçısı=-0.5
Sırano=19390
AyRasatNo=8
RasatÖnceki=19.03.2022
RasatSonraki=22.03.2022

[Leke Grupları]
Grupsayısı=4:1:3
LekeSayısı=15:2:13
RölatifSayı=55:12:43
01=BXO 02 +18.735 -42.170 135.133 +0.000 0000 0 +19.112 -40.544 +18.358 -43.490 +18.735 -41.197 +18.735 -43.143
02=AX_ 01 -21.878 +22.533 199.683 -1.000 0000 0 -21.878 +22.533 -21.878 +22.533
03=BXI 10 -26.999 -01.536 175.614 14.406 0000 0 -25.974 +00.959 -28.240 -04.320 -26.600 +00.345 -27.589 -03.510
04=?__ 02 -17.672 -87.798 089.352 +0.000 0000 0 -16.757 -85.841 -18.588 -89.755 -17.672 -86.341 -17.672 -89.255
20220321.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 →

2022/20220321_hc · HC · 5 frames · 107.1 MB · 09:08:15–09:11:49 UT

09:11:49 UT · 30 ms 09:08:15 UT · 40 ms 09:11:00 UT · 70 ms 09:10:17 UT 09:09:24 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.