Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Saturday, 11 March 2023

‹ 10.03.2023 2023 13.03.2023 ›

Photosphere sunspot drawing and RDS evaluation

11.03.2023 photosphere drawing

High-resolution scan (3233 px)

Time
13:30 UT
Observer
Hikmet ÇAKMAK
g
12
f
42
R
162
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HA_ – 1Group 1 · HA_ – 1 Group 2 · CAO – 2Group 2 · CAO – 2 Group 3 · AX_ – 1Group 3 · AX_ – 1 Group 4 · AX_ – 3Group 4 · AX_ – 3 Group 5 · HR_ – 3Group 5 · HR_ – 3 Group 6 · AX_ – 1Group 6 · AX_ – 1 Group 7 · HA_ – 1Group 7 · HA_ – 1 Group 8 · HK_ – 11Group 8 · HK_ – 11 Group 9 · CAI – 7Group 9 · CAI – 7 Group 10 · CAI – 9Group 10 · CAI – 9 Group 11 · HA_ – 1Group 11 · HA_ – 1 Group 12 · HA_ – 2Group 12 · HA_ – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=11.03.2023
Saat=13:30
Gözlemci=Hikmet ÇAKMAK
KontrolEden=Ergün EGE
Durumaçısı=-23.75
Enlemaçısı=-7.23
Boylamaçısı=168.92
Boylamfark=1
GKalite=3
GDurum=G.T , H.S
Kuzeyaçısı=-0.2
Sırano=19672
AyRasatNo=6
RasatÖnceki=10.03.2023
RasatSonraki=13.03.2023

[Leke Grupları]
Grupsayısı=12:7:5
LekeSayısı=42:12:30
RölatifSayı=162:82:80
01=HA_ 01 +32.700 +64.250 232.945 +0.000 0000 0 +33.584 +65.540 +31.816 +62.996 +32.700 +65.220 +32.700 +63.478
02=CAO 02 +11.221 +52.163 221.830 10.752 0000 0 +12.212 +55.400 +10.230 +49.285 +11.434 +54.207 +10.588 +49.750
03=AX_ 01 +28.539 +50.907 219.827 -1.000 0000 0 +28.539 +50.907 +28.539 +50.907
04=AX_ 03 +08.757 +41.310 209.951 +0.000 0000 0 +09.362 +42.500 +08.152 +40.120 +08.757 +42.000 +08.757 +40.620
05=HR_ 03 +23.617 +05.179 174.990 +0.000 0000 0 +24.308 +05.792 +22.926 +04.566 +23.617 +05.292 +23.617 +05.660
06=AX_ 01 +22.764 -41.839 127.810 -1.000 0000 0 +22.764 -41.839 +22.764 -41.839
07=HA_ 01 +12.242 -51.279 117.641 +0.000 0000 0 +12.762 -50.483 +11.721 -52.750 +12.242 -50.646 +12.242 -51.912
08=HK_ 11 -23.197 +21.882 190.802 +0.000 0000 0 -20.389 +24.456 -26.600 +19.308 -23.197 +23.956 -23.197 +19.808
09=CAI 07 -24.398 -12.209 156.711 09.202 0000 0 -22.754 -06.525 -26.410 -17.893 -23.824 -07.409 -25.440 -17.436
10=CAI 09 -19.679 -25.426 143.494 35.990 0000 0 -17.925 -23.562 -21.432 -27.290 -20.703 -24.351 -18.838 -27.600
11=HA_ 01 -11.726 -29.190 139.901 +0.000 0000 0 -11.122 -28.353 -12.330 -29.685 -11.726 -29.240 -11.726 -29.356
12=HA_ 02 -14.840 -49.655 119.265 +0.000 0000 0 -13.533 -48.722 -14.636 -50.589 -14.840 -49.222 -14.840 -50.880
20230311.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 →

2023/20230311_hc · HC · 4 frames · 85.7 MB · 13:27:17–13:34:42 UT

13:32:29 UT · 40 ms 13:27:17 UT · 40 ms 13:28:55 UT · 80 ms · over-exposed 13:34:42 UT · 90 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.