Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Friday, 28 October 2022

‹ 27.10.2022 2022 29.10.2022 ›

Photosphere sunspot drawing and RDS evaluation

28.10.2022 photosphere drawing

High-resolution scan (3226 px)

Time
08:18 UT
Observer
Olcay PLEVNE
g
4
f
23
R
63
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 1Group 1 · HS_ – 1 Group 2 · CAI – 4Group 2 · CAI – 4 Group 3 · AX_ – 3Group 3 · AX_ – 3 Group 4 · DSI – 15Group 4 · DSI – 15
RDS data file (.gzd) 
[Gözlem]
Tarih=28.10.2022
Saat=08:18
Gözlemci=Olcay PLEVNE
KontrolEden=
Durumaçısı=25.04
Enlemaçısı=4.77
Boylamaçısı=137.08
Boylamfark=2
GKalite=3
GDurum=K.T
Kuzeyaçısı=0.0
Sırano=19586
AyRasatNo=21
RasatÖnceki=27.10.2022
RasatSonraki=29.10.2022

[Leke Grupları]
Grupsayısı=4:2:2
LekeSayısı=23:5:18
RölatifSayı=63:25:38
01=HS_ 01 +22.634 -24.404 112.676 -1.000 0000 0 +23.992 -22.565 +21.277 -26.243
02=CAI 04 +26.452 -41.608 095.472 +0.000 0000 0 +27.935 -38.307 +24.968 -44.909 +26.452 -38.507 +26.452 -44.709
03=AX_ 03 -13.569 +52.444 189.524 +0.000 0000 0 -10.267 +53.423 -16.870 +51.465 +00.000 +00.000 +00.000 +00.000
04=DSI 15 -23.198 +46.582 183.662 28.486 0000 0 -21.000 +50.290 -25.396 +43.135 -24.353 +48.726 -21.803 +44.190
20221028.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 →

2022/20221028_op · OP · 4 frames · 85.7 MB · 08:15:23–08:22:55 UT

08:15:23 UT · 30 ms 08:18:16 UT · 30 ms 08:21:33 UT · 60 ms · over-exposed 08:22:55 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.