Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 8 February 2024

‹ 07.02.2024 2024 09.02.2024 ›

Photosphere sunspot drawing and RDS evaluation

08.02.2024 photosphere drawing

High-resolution scan (3234 px)

Time
07:45 UT
Observer
Burçin TANIK
g
10
f
79
R
179
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 2Group 1 · AX_ – 2 Group 2 · AX_ – 2Group 2 · AX_ – 2 Group 3 · AX_ – 2Group 3 · AX_ – 2 Group 4 · AX_ – 1Group 4 · AX_ – 1 Group 5 · AX_ – 1Group 5 · AX_ – 1 Group 6 · HH_ – 2Group 6 · HH_ – 2 Group 7 · FKC – 61Group 7 · FKC – 61 Group 8 · AX_ – 2Group 8 · AX_ – 2 Group 9 · CRO – 5Group 9 · CRO – 5 Group 10 · ?__ – 1Group 10 · ?__ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=8.02.2024
Saat=07:45
Gözlemci=Burçin TANIK
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=-14.81
Enlemaçısı=-6.45
Boylamaçısı=82.81
Boylamfark=2
GKalite=3
GDurum=H.S
Kuzeyaçısı=-1.0
Sırano=19915
AyRasatNo=7
RasatÖnceki=07.02.2024
RasatSonraki=9.02.2024

[Leke Grupları]
Grupsayısı=10:3:7
LekeSayısı=79:6:73
RölatifSayı=179:36:143
01=AX_ 02 +20.810 +41.933 124.743 +0.000 0000 0 +20.694 +42.575 +19.468 +41.291 +20.810 +42.750 +20.810 +41.791
02=AX_ 02 +15.895 +07.443 090.253 +0.000 0000 0 +16.240 +08.155 +15.550 +06.732 +15.895 +07.655 +15.895 +07.231
03=AX_ 02 +24.610 +05.189 087.999 +0.000 0000 0 +24.384 +06.246 +23.738 +04.133 +24.610 +05.746 +24.610 +04.633
04=AX_ 01 -13.949 +74.926 157.736 -1.000 0000 0 -13.949 +74.926 -13.949 +74.926
05=AX_ 01 -12.486 +63.801 146.611 -1.000 0000 0 -12.486 +63.801 -12.486 +63.801
06=HH_ 02 -16.981 +18.349 101.159 +0.000 0000 0 -16.165 +19.993 -17.797 +16.705 -16.981 +19.493 -16.981 +17.205
07=FKC 61 -14.489 -30.204 052.606 30.390 0000 0 -10.260 -22.634 -18.952 -37.774 -11.490 -24.658 -17.907 -35.873
08=AX_ 02 -03.773 -37.946 044.864 +0.000 0000 0 -02.921 -37.454 -04.625 -38.437 -03.773 -37.954 -03.773 -37.938
09=CRO 05 -10.401 -44.710 038.100 +0.000 0000 0 -09.877 -41.728 -10.926 -47.693 -10.401 -42.228 -10.401 -47.192
10=?__ 01 -20.223 -82.837 359.973 +0.000 0000 0 -19.252 -81.296 -21.195 -84.379 -20.223 -81.796 -20.223 -83.878
20240208.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 →

2024/20240208_bto · BTO · 6 frames · 128.6 MB · 07:48:02–07:52:57 UT

07:52:57 UT · 30 ms 07:49:06 UT · 30 ms 07:51:04 UT · 40 ms 07:48:02 UT · 70 ms 07:50:04 UT · 80 ms · over-exposed 07:52:01 UT · 80 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.