Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 2 October 2023

‹ 30.09.2023 2023 03.10.2023 ›

Photosphere sunspot drawing and RDS evaluation

02.10.2023 photosphere drawing

High-resolution scan (3232 px)

Time
09:30 UT
Observer
Hikmet ÇAKMAK
g
11
f
60
R
170
Seeing
4 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 2Group 1 · AX_ – 2 Group 2 · HA_ – 2Group 2 · HA_ – 2 Group 3 · AX_ – 1Group 3 · AX_ – 1 Group 4 · CAO – 5Group 4 · CAO – 5 Group 5 · BXO – 2Group 5 · BXO – 2 Group 6 · EAI – 15Group 6 · EAI – 15 Group 7 · BXI – 5Group 7 · BXI – 5 Group 8 · AX_ – 2Group 8 · AX_ – 2 Group 9 · ?__ – 1Group 9 · ?__ – 1 Group 10 · EAI – 22Group 10 · EAI – 22 Group 11 · AX_ – 3Group 11 · AX_ – 3
RDS data file (.gzd) 
[Gözlem]
Tarih=2.10.2023
Saat=09:30
Gözlemci=Hikmet ÇAKMAK
KontrolEden=Korhan YELKENCİ
Durumaçısı=26.01
Enlemaçısı=6.68
Boylamaçısı=341.83
Boylamfark=1
GKalite=4
GDurum=G.T , H.S
Kuzeyaçısı=-0.3
Sırano=19836
AyRasatNo=1
RasatÖnceki=30.09.2023
RasatSonraki=03.10.2023

[Leke Grupları]
Grupsayısı=11:8:3
LekeSayısı=60:34:26
RölatifSayı=170:114:56
01=AX_ 02 +14.954 +29.671 011.501 +0.000 0000 0 +15.228 +30.330 +14.680 +29.310 +14.954 +29.681 +14.954 +29.661
02=HA_ 02 +14.200 +10.533 352.363 +0.000 0000 0 +14.984 +11.407 +13.560 +09.658 +14.200 +10.908 +14.200 +10.158
03=AX_ 01 +23.644 -02.827 339.300 -1.000 0000 0 +23.644 -02.827 +23.644 -02.827
04=CAO 05 +11.287 -06.467 335.363 18.771 0000 0 +12.716 -03.876 +09.858 -09.570 +10.726 -04.643 +12.770 -08.621
05=BXO 02 +30.465 -15.359 326.471 16.438 0000 0 +31.338 -13.420 +29.592 -17.298 +29.997 -13.945 +30.893 -16.986
06=EAI 15 +10.973 -41.369 300.461 21.968 0000 0 +13.301 -36.286 +08.645 -46.451 +09.389 -37.743 +12.579 -45.686
07=BXI 05 +16.837 -44.130 297.700 18.457 0000 0 +17.957 -41.426 +15.717 -46.834 +16.136 -42.122 +17.567 -46.414
08=AX_ 02 +24.400 -67.998 273.832 +0.000 0000 0 +24.811 -66.807 +23.269 -69.188 +24.400 -67.308 +24.400 -68.688
09=?__ 01 -22.610 +75.602 057.432 +0.000 0000 0 -21.927 +76.204 -23.294 +75.000 -22.610 +75.704 -22.610 +75.500
10=EAI 22 -19.950 -13.219 328.611 02.714 0000 0 -16.720 -06.854 -21.471 -19.585 -17.745 -07.841 -18.110 -15.568
11=AX_ 03 -11.778 -59.641 282.189 +0.000 0000 0 -11.173 -59.470 -12.383 -60.234 -11.778 -59.759 -11.778 -59.523
20231002.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 →

2023/20231002_hc · HC · 6 frames · 128.6 MB · 09:31:43–09:52:50 UT

09:34:22 UT · 30 ms 09:52:50 UT · 30 ms 09:45:19 UT · 30 ms 09:31:43 UT · 30 ms 09:38:09 UT · 60 ms · over-exposed 09:43:47 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.