Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Tuesday, 10 June 2025

‹ 09.06.2025 2025 11.06.2025 ›

Photosphere sunspot drawing and RDS evaluation

10.06.2025 photosphere drawing

High-resolution scan (3224 px)

Time
08:20 UT
Observer
Olcay PLEVNE
g
7
f
32
R
102
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CRI – 5Group 1 · CRI – 5 Group 2 · HS_ – 2Group 2 · HS_ – 2 Group 3 · HS_ – 3Group 3 · HS_ – 3 Group 4 · CSO – 17Group 4 · CSO – 17 Group 5 · AX_ – 1Group 5 · AX_ – 1 Group 6 · BXI – 2Group 6 · BXI – 2 Group 7 · BXI – 2Group 7 · BXI – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=10.06.2025
Saat=08:20
Gözlemci=Olcay PLEVNE
KontrolEden=Olcay PLEVNE
Durumaçısı=-11.66
Enlemaçısı=0.45
Boylamaçısı=121.31
Boylamfark=2
GKalite=3
GDurum=B.A , K.T
Kuzeyaçısı=0.0
Sırano=20266
AyRasatNo=9
RasatÖnceki=09.06.2025
RasatSonraki=11.06.2025

[Leke Grupları]
Grupsayısı=7:2:5
LekeSayısı=32:7:25
RölatifSayı=102:27:75
01=CRI 05 +03.479 -07.537 113.773 +0.000 0000 0 +04.605 -04.383 +02.353 -10.691 +03.479 -04.583 +03.479 -10.491
02=HS_ 02 +13.174 -61.437 059.873 +0.000 0000 0 +14.517 -59.652 +11.830 -63.223 +13.174 -60.152 +13.174 -62.722
03=HS_ 03 -16.240 +29.587 150.897 +0.000 0000 0 -14.728 +31.776 -17.319 +27.398 -16.240 +31.276 -16.240 +27.898
04=CSO 17 -15.273 +08.575 129.885 +0.000 0000 0 -13.108 +13.216 -17.438 +03.934 -15.273 +13.160 -15.273 +04.134
05=AX_ 01 -15.616 -02.901 118.409 -1.000 0000 0 -15.616 -02.901 -15.616 -02.901
06=BXI 02 -17.175 -10.818 110.492 +0.000 0000 0 -16.729 -09.673 -17.622 -11.963 -17.175 -10.173 -17.175 -11.463
07=BXI 02 -08.312 -43.550 078.255 +0.000 0000 0 -07.696 -41.111 -08.927 -44.998 -08.312 -42.106 -08.312 -44.993
20250610.gzd

Chromosphere (H-α) FITS frames

No chromosphere observation for this day.

Coronado H-α animations from frame sequences

No Coronado observation for this day.