Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 2 June 2023

‹ 01.06.2023 2023 03.06.2023 ›

Photosphere sunspot drawing and RDS evaluation

02.06.2023 photosphere drawing

High-resolution scan (3224 px)

Time
07:45 UT
Observer
O.PLEVNE=B.C.
g
8
f
57
R
137
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 1Group 1 · HS_ – 1 Group 2 · BXI – 13Group 2 · BXI – 13 Group 3 · HS_ – 1Group 3 · HS_ – 1 Group 4 · BXI – 2Group 4 · BXI – 2 Group 5 · CSI – 5Group 5 · CSI – 5 Group 6 · EHC – 14Group 6 · EHC – 14 Group 7 · HH_ – 5Group 7 · HH_ – 5 Group 8 · ESC – 16Group 8 · ESC – 16
RDS data file (.gzd) 
[Gözlem]
Tarih=2.06.2023
Saat=07:45
Gözlemci=O.PLEVNE=B.C.
KontrolEden=Burçin TANIK
Durumaçısı=-15.04
Enlemaçısı=-0.57
Boylamaçısı=155.85
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=0.0
Sırano=19724
AyRasatNo=2
RasatÖnceki=01.06.2023
RasatSonraki=03.06.2023

[Leke Grupları]
Grupsayısı=8:4:4
LekeSayısı=57:17:40
RölatifSayı=137:57:80
01=HS_ 01 +24.740 +73.834 229.684 +0.000 0000 0 +25.893 +76.126 +23.587 +71.542 +24.740 +75.626 +24.740 +72.420
02=BXI 13 +15.877 +00.695 156.545 +0.000 0000 0 +20.940 +03.613 +11.660 -02.222 +15.877 +03.413 +15.877 -02.220
03=HS_ 01 +09.780 -27.411 128.439 +0.000 0000 0 +10.455 -26.814 +09.105 -28.700 +09.780 -26.968 +09.780 -27.854
04=BXI 02 +10.158 -37.694 118.156 +0.000 0000 0 +10.428 -35.389 +09.888 -40.000 +10.158 -35.889 +10.158 -39.500
05=CSI 05 -17.470 +77.555 233.405 +0.000 0000 0 -15.664 +83.812 -18.430 +71.298 -17.470 +83.612 -17.470 +71.498
06=EHC 14 -18.293 +45.642 201.492 +0.000 0000 0 -16.588 +52.903 -19.999 +38.381 -18.293 +52.703 -18.293 +38.581
07=HH_ 05 -15.995 -37.918 117.932 +0.000 0000 0 -13.834 -35.433 -18.156 -40.403 -15.995 -35.933 -15.995 -39.903
08=ESC 16 -07.305 -58.372 097.478 +0.000 0000 0 -04.923 -51.158 -09.687 -65.587 -07.305 -51.358 -07.305 -65.387
20230602.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 →

2023/20230602_op · OP · 5 frames · 107.1 MB · 07:54:57–07:59:52 UT

07:54:57 UT · 40 ms 07:58:06 UT · 40 ms 07:56:48 UT · 40 ms 07:58:54 UT · 60 ms · over-exposed 07:59:52 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.