Images 31.10.2021 · Istanbul University Observatory Solar Observations

Solar Images Sunday, 31 October 2021

‹ 30.10.2021 2021 02.11.2021 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3233 px)

Time: 09:40 UT
Observer: Oğuzhan ÇAKIR
g: 5
f: 41
R: 91
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 7

Group 2 · CAI – 22

Group 3 · HH_ – 1

Group 4 · HS_ – 1

Group 5 · CAI – 10

RDS data file (.gzd)

[Gözlem]
Tarih=31.10.2021
Saat=09:40
Gözlemci=Oğuzhan ÇAKIR
KontrolEden=Oğuzhan ÇAKIR
Durumaçısı=24.55
Enlemaçısı=4.44
Boylamaçısı=234.33
Boylamfark=1
GKalite=3
GDurum=G.T
Kuzeyaçısı=-0.3
Sırano=19312
AyRasatNo=23
RasatÖnceki=30.10.2021
RasatSonraki=02.11.2021

[Leke Grupları]
Grupsayısı=5:3:2
LekeSayısı=41:30:11
RölatifSayı=91:60:31
01=BXI 07 +27.740 +19.698 254.280 +0.000 0000 0 +27.686 +21.736 +26.461 +17.661 +27.740 +21.236 +27.740 +18.160
02=CAI 22 +17.716 -27.421 206.909 11.925 0000 0 +19.882 -21.735 +15.549 -33.107 +17.210 -22.966 +19.200 -32.481
03=HH_ 01 +16.190 -85.132 149.198 +0.000 0000 0 +17.339 -81.639 +15.410 -88.626 +16.190 -82.139 +16.190 -88.126
04=HS_ 01 -24.466 +40.669 274.999 +0.000 0000 0 -23.444 +41.721 -25.488 +39.617 -24.466 +41.221 -24.466 +40.117
05=CAI 10 -28.315 +35.952 270.282 10.950 0000 0 -26.960 +40.336 -29.671 +31.568 -27.553 +39.290 -28.830 +32.675

20211031.gzd

Chromosphere (H-α) FITS frames

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 →

2021/20211031_oc · OC · 2 frames · 42.9 MB · 10:14:04–10:16:21 UT

10:14:04 UT · 40 ms

10:16:21 UT · 70 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.