Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 9 June 2021

‹ 08.06.2021 2021 10.06.2021 ›

Photosphere sunspot drawing and RDS evaluation

09.06.2021 photosphere drawing

High-resolution scan (3231 px)

Time
08:05 UT
Observer
Burçin TANIK
g
2
f
7
R
27
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 3Group 1 · AX_ – 3 Group 2 · CAO – 4Group 2 · CAO – 4
RDS data file (.gzd) 
[Gözlem]
Tarih=9.06.2021
Saat=08:05
Gözlemci=Burçin TANIK
KontrolEden=Talar YONTAN
Durumaçısı=-12.09
Enlemaçısı=0.34
Boylamaçısı=338.11
Boylamfark=2
GKalite=3
GDurum=G.T , K.T
Kuzeyaçısı=-1.1
Sırano=19187
AyRasatNo=7
RasatÖnceki=08.06.2021
RasatSonraki=10.06.2021

[Leke Grupları]
Grupsayısı=2:1:1
LekeSayısı=7:3:4
RölatifSayı=27:13:14
01=AX_ 03 +15.170 -10.532 327.578 +0.000 0000 0 +16.145 -09.443 +13.888 -11.622 +00.000 +00.000 +00.000 +00.000
02=CAO 04 -18.278 +32.494 010.604 23.992 0000 0 -16.656 +36.923 -19.899 +28.650 -16.941 +34.459 -19.561 +28.557
20210609.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 →

2021/20210609_bto · BTO · 8 frames · 171.4 MB · 08:15:02–08:31:36 UT

08:17:13 UT · 40 ms 08:15:02 UT · 30 ms 08:26:42 UT · 40 ms 08:24:12 UT · 30 ms 08:31:36 UT · 60 ms · over-exposed 08:19:02 UT · 60 ms · over-exposed 08:22:19 UT · 70 ms · over-exposed 08:29:01 UT · 80 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.