Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Saturday, 31 December 2022

‹ 30.12.2022 2022 01.01.2023 ›

Photosphere sunspot drawing and RDS evaluation

31.12.2022 photosphere drawing

High-resolution scan (3231 px)

Time
09:40 UT
Observer
Ergün EGE
g
6
f
33
R
93
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · DAI – 11Group 2 · DAI – 11 Group 3 · ESI – 10Group 3 · ESI – 10 Group 4 · HA_ – 2Group 4 · HA_ – 2 Group 5 · CAO – 2Group 5 · CAO – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=31.12.2022
Saat=09:40
Gözlemci=Ergün EGE
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=2.48
Enlemaçısı=-2.9
Boylamaçısı=12.86
Boylamfark=1
GKalite=3
GDurum=H.S
Kuzeyaçısı=-0.5
Sırano=19629
AyRasatNo=16
RasatÖnceki=30.12.2022
RasatSonraki=01.01.2023

[Leke Grupları]
Grupsayısı=6:5:1
LekeSayısı=33:26:7
RölatifSayı=93:76:17
01=AX_ 01 +24.370 +33.235 046.950 +0.000 0000 0 +24.430 +33.821 +23.645 +32.648 +24.370 +33.321 +24.370 +33.149
02=DAI 11 +13.385 +28.484 041.344 +0.000 0000 0 +14.692 +32.920 +12.770 +24.470 +13.385 +32.720 +13.385 +24.247
03=ESI 10 +19.150 -07.210 005.839 +0.000 0000 0 +20.953 -00.886 +17.770 -13.157 +19.150 -01.860 +19.150 -12.957
04=HA_ 02 +20.969 -65.416 307.444 -1.000 0000 0 +22.394 -62.228 +19.544 -68.604
05=CAO 02 +16.643 -67.993 304.867 03.417 0000 0 +17.507 -62.689 +15.779 -73.297 +16.756 -64.334 +16.272 -72.462
06=DSI 07 -17.537 -41.560 331.804 +0.000 0000 0 -16.451 -36.814 -18.624 -45.297 -17.537 -37.140 -17.537 -45.970
20221231.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 →

2022/20221231_ee · EE · 3 frames · 64.3 MB · 09:44:17–09:46:36 UT

09:46:36 UT · 30 ms 09:45:58 UT · 40 ms 09:44:17 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.