Images 31.10.2023 · Istanbul University Observatory Solar Observations

Solar Images Tuesday, 31 October 2023

‹ 30.10.2023 2023 01.11.2023 ›

Photosphere sunspot drawing and RDS evaluation

High-resolution scan (3237 px)

Time: 13:07 UT
Observer: Burçin TANIK
g: 5
f: 53
R: 103
Seeing: 3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXI – 13

Group 2 · AX_ – 2

Group 3 · BXI – 7

Group 4 · DHI – 29

Group 5 · AX_ – 2

RDS data file (.gzd)

[Gözlem]
Tarih=31.10.2023
Saat=13:07
Gözlemci=Burçin TANIK
KontrolEden=Olcay PLEVNE
Durumaçısı=24.6
Enlemaçısı=4.48
Boylamaçısı=317.31
Boylamfark=1
GKalite=3
GDurum=
Kuzeyaçısı=0.3
Sırano=19860
AyRasatNo=25
RasatÖnceki=30.10.2023
RasatSonraki=01.11.2023

[Leke Grupları]
Grupsayısı=5:3:2
LekeSayısı=53:22:31
RölatifSayı=103:52:51
01=BXI 13 +20.229 +18.564 335.874 +0.000 0000 0 +22.130 +22.748 +18.445 +14.380 +20.229 +22.548 +20.229 +14.580
02=AX_ 02 +16.516 -09.907 307.403 +0.000 0000 0 +16.721 -09.114 +16.310 -10.699 +16.516 -09.615 +16.516 -10.199
03=BXI 07 +15.316 -16.735 300.575 +0.000 0000 0 +16.692 -14.550 +13.941 -19.414 +15.316 -14.255 +15.316 -19.214
04=DHI 29 -16.808 +08.188 325.498 06.261 0000 0 -14.878 +12.619 -18.738 +03.758 -17.337 +10.939 -16.670 +04.849
05=AX_ 02 -15.103 -16.281 301.290 +0.000 0000 0 -14.428 -15.130 -15.778 -17.433 -15.103 -15.630 -15.103 -16.933

20231031.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 →

2023/20231031_bto · BTO · 2 frames · 42.9 MB · 13:10:39–13:13:50 UT

13:10:39 UT · 80 ms

13:13:50 UT · 90 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.