Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Saturday, 10 February 2024

‹ 09.02.2024 2024 13.02.2024 ›

Photosphere sunspot drawing and RDS evaluation

10.02.2024 photosphere drawing

High-resolution scan (3236 px)

Time
10:40 UT
Observer
Burçin TANIK
g
7
f
82
R
152
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CSI – 9Group 1 · CSI – 9 Group 2 · AX_ – 3Group 2 · AX_ – 3 Group 3 · CSO – 3Group 3 · CSO – 3 Group 4 · FKC – 63Group 4 · FKC – 63 Group 5 · HS_ – 2Group 5 · HS_ – 2 Group 6 · HS_ – 1Group 6 · HS_ – 1 Group 7 · ?__ – 1Group 7 · ?__ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=10.02.2024
Saat=10:40
Gözlemci=Burçin TANIK
KontrolEden=Süleyman FİŞEK
Durumaçısı=-15.59
Enlemaçısı=-6.57
Boylamaçısı=54.88
Boylamfark=1
GKalite=3
GDurum=H.S
Kuzeyaçısı=-0.4
Sırano=19917
AyRasatNo=9
RasatÖnceki=09.02.2024
RasatSonraki=13.02.2024

[Leke Grupları]
Grupsayısı=7:2:5
LekeSayısı=82:12:70
RölatifSayı=152:32:120
01=CSI 09 +04.748 -24.103 030.777 +0.000 0000 0 +05.519 -21.588 +03.977 -26.619 +04.748 -22.880 +04.748 -26.118
02=AX_ 03 +07.907 -49.722 005.158 +0.000 0000 0 +08.663 -49.206 +07.151 -50.238 +07.907 -49.706 +07.907 -49.738
03=CSO 03 -17.628 +45.392 100.272 +0.000 0000 0 -16.220 +48.469 -19.370 +42.315 -17.628 +48.269 -17.628 +42.515
04=FKC 63 -15.310 -01.220 053.858 23.534 0000 0 -10.740 +08.139 -19.879 -10.182 -12.857 +04.889 -18.271 -07.681
05=HS_ 02 -09.634 -12.318 042.562 +0.000 0000 0 -09.109 -11.894 -10.159 -12.743 -09.634 -12.393 -09.634 -12.243
06=HS_ 01 -20.725 -53.385 001.495 +0.000 0000 0 -19.658 -52.329 -21.791 -54.441 -20.725 -52.829 -20.725 -53.941
07=?__ 01 -14.571 -78.970 336.783 +0.000 0000 0 -13.992 -76.868 -15.150 -79.327 -14.571 -78.241 -14.571 -79.700
20240210.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 →

2024/20240210_bto · BTO · 5 frames · 107.1 MB · 10:47:18–10:51:16 UT

10:48:31 UT · 40 ms 10:47:18 UT · 70 ms 10:50:25 UT · 30 ms 10:49:28 UT · 80 ms 10:51:16 UT · 70 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.