Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 3 November 2021

‹ 02.11.2021 2021 04.11.2021 ›

Photosphere sunspot drawing and RDS evaluation

03.11.2021 photosphere drawing

High-resolution scan (3235 px)

Time
09:30 UT
Observer
Oğuzhan ÇAKIR
g
3
f
20
R
50
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CAI – 17Group 1 · CAI – 17 Group 2 · HH_ – 2Group 2 · HH_ – 2 Group 3 · HH_ – 1Group 3 · HH_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=3.11.2021
Saat=09:30
Gözlemci=Oğuzhan ÇAKIR
KontrolEden=Burçin TANIK
Durumaçısı=24.03
Enlemaçısı=4.14
Boylamaçısı=194.86
Boylamfark=1
GKalite=3
GDurum=K.T
Kuzeyaçısı=-0.4
Sırano=19314
AyRasatNo=2
RasatÖnceki=02.11.2021
RasatSonraki=04.11.2021

[Leke Grupları]
Grupsayısı=3:2:1
LekeSayısı=20:19:1
RölatifSayı=50:39:11
01=CAI 17 +16.528 +14.334 209.194 15.972 0000 0 +18.556 +18.550 +14.501 +10.119 +15.249 +17.909 +17.295 +10.739
02=HH_ 02 +17.245 -40.408 154.452 -1.000 0000 0 +18.402 -39.740 +16.890 -41.742
03=HH_ 01 -25.976 +79.606 274.466 -1.000 0000 0 -25.154 +81.478 -26.798 +77.733
20211103.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 →

2021/20211103_oc · OC · 5 frames · 107.1 MB · 09:59:49–10:08:24 UT

09:59:49 UT · 40 ms 10:04:20 UT · 70 ms · over-exposed 10:07:17 UT · 70 ms 10:08:24 UT · 40 ms 10:05:17 UT

Coronado H-α animations from frame sequences

No Coronado observation for this day.