Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 5 July 2023

‹ 04.07.2023 2023 06.07.2023 ›

Photosphere sunspot drawing and RDS evaluation

05.07.2023 photosphere drawing

High-resolution scan (3224 px)

Time
08:00 UT
Observer
Olcay PLEVNE
g
8
f
62
R
142
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 1Group 1 · HS_ – 1 Group 2 · BXI – 9Group 2 · BXI – 9 Group 3 · CAI – 7Group 3 · CAI – 7 Group 4 · BXI – 11Group 4 · BXI – 11 Group 5 · BXI – 14Group 5 · BXI – 14 Group 6 · CSI – 13Group 6 · CSI – 13 Group 7 · AX_ – 5Group 7 · AX_ – 5 Group 8 · HS_ – 2Group 8 · HS_ – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=5.07.2023
Saat=08:00
Gözlemci=Olcay PLEVNE
KontrolEden=Burçin TANIK
Durumaçısı=-0.87
Enlemaçısı=3.28
Boylamaçısı=78.92
Boylamfark=2
GKalite=3
GDurum=B.A , K.T
Kuzeyaçısı=0.0
Sırano=19754
AyRasatNo=5
RasatÖnceki=04.07.2023
RasatSonraki=06.07.2023

[Leke Grupları]
Grupsayısı=8:3:5
LekeSayısı=62:17:45
RölatifSayı=142:47:95
01=HS_ 01 +14.746 +81.838 160.758 +0.000 0000 0 +16.243 +86.236 +13.248 +77.440 +14.746 +85.736 +14.746 +77.940
02=BXI 09 +23.572 -18.232 060.688 +0.000 0000 0 +25.204 -15.882 +21.940 -20.582 +23.572 -16.820 +23.572 -20.382
03=CAI 07 +23.350 -42.680 036.852 +0.000 0000 0 +24.711 -37.974 +21.360 -46.162 +23.350 -38.174 +23.350 -45.962
04=BXI 11 -06.193 +10.829 089.749 +0.000 0000 0 -04.492 +14.947 -07.893 +06.711 -06.193 +14.747 -06.193 +06.911
05=BXI 14 -12.505 -09.878 069.420 +0.000 0000 0 -10.742 -04.711 -14.267 -15.450 -12.505 -04.911 -12.505 -14.845
06=CSI 13 -20.483 -11.690 067.851 +0.000 0000 0 -18.927 -06.252 -22.400 -15.887 -20.483 -06.452 -20.483 -15.687
07=AX_ 05 -09.979 -24.534 054.386 +0.000 0000 0 -08.834 -23.453 -11.125 -25.615 +00.000 +00.000 +00.000 +00.000
08=HS_ 02 -08.237 -72.361 006.559 +0.000 0000 0 -07.309 -70.134 -09.165 -74.589 -08.237 -70.633 -08.237 -74.890
20230705.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 →

2023/20230704_ky · KY · 3 frames · 64.3 MB · 07:57:14–07:58:15 UT

07:57:14 UT · 60 ms 07:57:45 UT · 40 ms 07:58:15 UT · 30 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.