Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Tuesday, 4 June 2024

‹ 03.06.2024 2024 05.06.2024 ›

Photosphere sunspot drawing and RDS evaluation

04.06.2024 photosphere drawing

High-resolution scan (3222 px)

Time
10:20 UT
Observer
Olcay PLEVNE
g
10
f
90
R
190
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · FSI – 10Group 1 · FSI – 10 Group 2 · CSI – 6Group 2 · CSI – 6 Group 3 · DAI – 8Group 3 · DAI – 8 Group 4 · HS_ – 1Group 4 · HS_ – 1 Group 5 · DSO – 3Group 5 · DSO – 3 Group 6 · FKC – 38Group 6 · FKC – 38 Group 7 · CSI – 13Group 7 · CSI – 13 Group 8 · CAI – 6Group 8 · CAI – 6 Group 9 · AX_ – 3Group 9 · AX_ – 3 Group 10 · BXI – 2Group 10 · BXI – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=4.06.2024
Saat=10:20
Gözlemci=Olcay PLEVNE
KontrolEden=Korhan YELKENCİ
Durumaçısı=-13.94
Enlemaçısı=-0.23
Boylamaçısı=337.17
Boylamfark=1
GKalite=3
GDurum=K.T
Kuzeyaçısı=0.0
Sırano=19995
AyRasatNo=3
RasatÖnceki=03.06.2024
RasatSonraki=06.06.2024

[Leke Grupları]
Grupsayısı=10:4:6
LekeSayısı=90:25:65
RölatifSayı=190:65:125
01=FSI 10 +24.575 +55.567 032.737 +0.000 0000 0 +27.379 +66.832 +21.771 +44.302 +24.575 +66.632 +24.575 +44.502
02=CSI 06 +03.456 +51.340 028.510 +0.000 0000 0 +04.397 +54.507 +02.516 +48.173 +03.456 +54.307 +03.456 +48.373
03=DAI 08 +21.375 +19.831 357.100 +0.000 0000 0 +22.901 +25.444 +19.849 +14.219 +21.375 +25.244 +21.375 +14.419
04=HS_ 01 +16.425 -51.651 285.519 +0.000 0000 0 +17.574 -50.700 +15.275 -53.231 +16.425 -50.886 +16.425 -52.417
05=DSO 03 -04.579 +68.357 045.527 +0.000 0000 0 -02.919 +74.652 -06.238 +62.630 -04.579 +74.452 -04.579 +62.263
06=FKC 38 -17.915 +08.452 345.622 +0.000 0000 0 -12.327 +17.253 -23.502 -00.349 -17.915 +17.530 -17.915 -00.149
07=CSI 13 -05.553 +01.217 338.387 +0.000 0000 0 -03.364 +03.938 -07.742 -01.505 -05.553 +03.738 -05.553 -01.305
08=CAI 06 -07.638 -13.984 323.186 +0.000 0000 0 -05.806 -10.454 -09.471 -17.514 -07.638 -10.654 -07.638 -17.314
09=AX_ 03 -11.751 -36.959 300.211 +0.000 0000 0 -11.157 -35.710 -12.345 -38.209 -11.751 -36.209 -11.751 -37.708
10=BXI 02 -17.714 -59.207 277.963 +0.000 0000 0 -17.190 -56.470 -18.410 -62.368 -17.714 -56.758 -17.714 -61.656
20240604.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 →

2024/20240604_op · OP · 4 frames · 85.7 MB · 10:19:07–10:23:08 UT

10:19:07 UT · 30 ms 10:20:53 UT · 30 ms 10:23:08 UT · 50 ms 10:21:51 UT · 50 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.