Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 24 July 2022

‹ 23.07.2022 2022 25.07.2022 ›

Photosphere sunspot drawing and RDS evaluation

24.07.2022 photosphere drawing

High-resolution scan (3224 px)

Time
11:59 UT
Observer
Başar COŞKUNOĞLU
g
7
f
17
R
87
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 5Group 1 · BXO – 5 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · BXI – 6Group 3 · BXI – 6 Group 4 · AX_ – 1Group 4 · AX_ – 1 Group 5 · HS_ – 1Group 5 · HS_ – 1 Group 6 · BXO – 2Group 6 · BXO – 2 Group 7 · HS_ – 1Group 7 · HS_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=24.07.2022
Saat=11:59
Gözlemci=Başar COŞKUNOĞLU
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=7.7
Enlemaçısı=5.17
Boylamaçısı=322.85
Boylamfark=0
GKalite=3
GDurum=
Kuzeyaçısı=-0.2
Sırano=19500
AyRasatNo=23
RasatÖnceki=23.07.2022
RasatSonraki=25.07.2022

[Leke Grupları]
Grupsayısı=7:4:3
LekeSayısı=17:13:4
RölatifSayı=87:53:34
01=BXO 05 +11.658 +54.242 017.920 +0.000 0000 0 +12.914 +55.994 +10.403 +52.491 +11.658 +55.794 +11.658 +52.691
02=AX_ 01 +12.303 +33.626 356.476 -1.000 0000 0 +12.303 +33.626 +12.303 +33.626
03=BXI 06 +07.818 +22.918 345.768 +0.000 0000 0 +08.680 +25.552 +06.955 +20.284 +07.818 +25.352 +07.818 +20.484
04=AX_ 01 +09.815 +14.319 337.169 -1.000 0000 0 +09.815 +14.319 +09.815 +14.319
05=HS_ 01 -08.705 +50.250 013.100 +0.000 0000 0 -07.979 +50.924 -09.432 +49.576 -08.705 +50.424 -08.705 +50.760
06=BXO 02 -18.782 +20.371 343.221 +0.000 0000 0 -18.117 +22.791 -19.447 +17.950 -18.782 +22.292 -18.782 +18.451
07=HS_ 01 -24.634 -16.780 306.772 +0.000 0000 0 -23.634 -15.146 -25.634 -17.110 -24.634 -16.298 -24.634 -17.262
20220724.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 →

2022/20220724_bc · BC · 6 frames · 128.6 MB · 11:42:04–11:50:20 UT

11:46:49 UT · 40 ms 11:46:03 UT · 40 ms 11:42:04 UT · 40 ms 11:48:11 UT · 60 ms · over-exposed 11:48:49 UT · 60 ms · over-exposed 11:50:20 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.