Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 6 September 2023

‹ 05.09.2023 2023 07.09.2023 ›

Photosphere sunspot drawing and RDS evaluation

06.09.2023 photosphere drawing

High-resolution scan (3224 px)

Time
09:10 UT
Observer
Olcay PLEVNE
g
8
f
55
R
135
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 2Group 1 · AX_ – 2 Group 2 · EKC – 28Group 2 · EKC – 28 Group 3 · AX_ – 2Group 3 · AX_ – 2 Group 4 · CAI – 17Group 4 · CAI – 17 Group 5 · BXI – 3Group 5 · BXI – 3 Group 6 · HS_ – 1Group 6 · HS_ – 1 Group 7 · AX_ – 1Group 7 · AX_ – 1 Group 8 · AX_ – 1Group 8 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=6.09.2023
Saat=09:10
Gözlemci=Olcay PLEVNE
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=22.25
Enlemaçısı=7.24
Boylamaçısı=325.24
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=0.0
Sırano=19814
AyRasatNo=6
RasatÖnceki=05.09.2023
RasatSonraki=07.09.2023

[Leke Grupları]
Grupsayısı=8:6:2
LekeSayısı=55:53:2
RölatifSayı=135:113:22
01=AX_ 02 +19.996 +32.810 357.321 +0.000 0000 0 +20.783 +33.200 +19.209 +31.161 +19.996 +33.330 +19.996 +32.291
02=EKC 28 +14.956 +14.183 339.423 +0.000 0000 0 +16.783 +21.596 +13.129 +06.770 +14.956 +21.396 +14.956 +06.970
03=AX_ 02 +14.850 -03.391 321.849 +0.000 0000 0 +15.182 -02.704 +14.517 -04.770 +14.850 -02.858 +14.850 -03.924
04=CAI 17 +15.762 -47.765 277.475 +0.000 0000 0 +17.160 -43.668 +14.508 -51.863 +15.762 -43.868 +15.762 -51.663
05=BXI 03 +17.185 -76.714 248.526 +0.000 0000 0 +17.857 -73.210 +16.512 -80.217 +17.185 -73.710 +17.185 -79.717
06=HS_ 01 +23.110 -86.633 238.607 +0.000 0000 0 +23.922 -83.431 +22.100 -89.836 +23.110 -83.931 +23.110 -89.336
07=AX_ 01 -07.950 +42.628 007.868 -1.000 0000 0 -07.950 +42.628 -07.950 +42.628
08=AX_ 01 -08.684 +32.995 358.234 -1.000 0000 0 -08.684 +32.995 -08.684 +32.995
20230906.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 →

2023/20230906_op · OP · 4 frames · 85.7 MB · 09:24:17–09:28:37 UT

09:24:17 UT · 40 ms 09:26:01 UT · 40 ms 09:27:20 UT · 60 ms · over-exposed 09:28:37 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.