Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Saturday, 10 June 2023

‹ 08.06.2023 2023 11.06.2023 ›

Photosphere sunspot drawing and RDS evaluation

10.06.2023 photosphere drawing

High-resolution scan (3224 px)

Time
10:30 UT
Observer
Olcay PLEVNE
g
9
f
53
R
143
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · HS_ – 1Group 2 · HS_ – 1 Group 3 · DAI – 13Group 3 · DAI – 13 Group 4 · HS_ – 1Group 4 · HS_ – 1 Group 5 · AX_ – 1Group 5 · AX_ – 1 Group 6 · FKC – 31Group 6 · FKC – 31 Group 7 · EAI – 3Group 7 · EAI – 3 Group 8 · AX_ – 1Group 8 · AX_ – 1 Group 9 · AX_ – 1Group 9 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=10.06.2023
Saat=10:30
Gözlemci=Olcay PLEVNE
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=-11.84
Enlemaçısı=0.41
Boylamaçısı=48.45
Boylamfark=1
GKalite=3
GDurum=K.T
Kuzeyaçısı=0.0
Sırano=19730
AyRasatNo=8
RasatÖnceki=08.06.2023
RasatSonraki=11.06.2023

[Leke Grupları]
Grupsayısı=9:3:6
LekeSayısı=53:15:38
RölatifSayı=143:45:98
01=AX_ 01 +25.896 +43.437 091.887 -1.000 0000 0 +25.896 +43.437 +25.896 +43.437
02=HS_ 01 +25.396 +19.750 068.200 +0.000 0000 0 +26.618 +21.140 +24.173 +18.485 +25.396 +20.577 +25.396 +18.923
03=DAI 13 +22.831 +02.662 051.112 +0.000 0000 0 +25.118 +06.691 +20.543 -01.366 +22.831 +06.491 +22.831 -01.166
04=HS_ 01 -15.182 +70.359 118.809 +0.000 0000 0 -13.377 +73.448 -16.987 +67.271 -15.182 +72.948 -15.182 +67.771
05=AX_ 01 -07.365 +58.644 107.940 -1.000 0000 0 -07.365 +58.644 -07.365 +58.644
06=FKC 31 -13.817 +05.733 054.183 +0.000 0000 0 -10.870 +13.355 -16.764 -01.888 -13.817 +13.155 -13.817 -01.688
07=EAI 03 -22.809 -36.668 011.782 +0.000 0000 0 -20.697 -30.127 -24.922 -43.209 -22.809 -30.327 -22.809 -43.900
08=AX_ 01 -08.106 -39.109 009.341 -1.000 0000 0 -08.106 -39.109 -08.106 -39.109
09=AX_ 01 -12.870 -71.736 336.714 -1.000 0000 0 -12.870 -71.736 -12.870 -71.736
20230610.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 →

2023/20230610_op · OP · 4 frames · 85.7 MB · 10:27:15–10:30:39 UT

10:27:15 UT · 30 ms 10:28:47 UT · 30 ms 10:30:39 UT · 60 ms · over-exposed 10:29:53 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.