Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 10 June 2021

‹ 09.06.2021 2021 11.06.2021 ›

Photosphere sunspot drawing and RDS evaluation

10.06.2021 photosphere drawing

High-resolution scan (3227 px)

Time
09:30 UT
Observer
Talar YONTAN
g
2
f
13
R
33
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CRO – 7Group 1 · CRO – 7 Group 2 · CAI – 6Group 2 · CAI – 6
RDS data file (.gzd) 
[Gözlem]
Tarih=10.06.2021
Saat=09:30
Gözlemci=Talar YONTAN
KontrolEden=Oğuzhan ÇAKIR
Durumaçısı=-11.66
Enlemaçısı=0.46
Boylamaçısı=324.1
Boylamfark=1
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=0.0
Sırano=19188
AyRasatNo=8
RasatÖnceki=09.06.2021
RasatSonraki=11.06.2021

[Leke Grupları]
Grupsayısı=2:1:1
LekeSayısı=13:7:6
RölatifSayı=33:17:16
01=CRO 07 +15.152 +03.400 327.500 06.491 0000 0 +16.707 +05.475 +13.597 +01.325 +15.520 +04.760 +15.152 +01.525
02=CAI 06 -18.617 +47.291 011.391 04.664 0000 0 -17.147 +52.268 -20.860 +42.315 -18.116 +51.465 -18.825 +42.749
20210610.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 →

2021/20210610_ty · TY · 14 frames · 300.0 MB · 09:47:44–10:27:41 UT

09:47:44 UT · 30 ms 09:50:23 UT · 30 ms 09:57:49 UT · 30 ms 09:49:20 UT · 60 ms · over-exposed 10:15:34 UT · 30 ms 10:21:28 UT · 60 ms · over-exposed 10:22:16 UT · 30 ms 10:05:02 UT · 60 ms · over-exposed 10:24:13 UT · 60 ms · over-exposed 10:16:42 UT · 60 ms 10:04:11 UT · 30 ms 09:56:47 UT · 60 ms · over-exposed 10:25:27 UT · 60 ms 10:27:41 UT · 30 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.