Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 29 December 2022

‹ 27.12.2022 2022 30.12.2022 ›

Photosphere sunspot drawing and RDS evaluation

29.12.2022 photosphere drawing

High-resolution scan (3230 px)

Time
07:30 UT
Observer
Başar COŞKUNOĞLU
g
8
f
44
R
124
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 4Group 1 · HS_ – 4 Group 2 · AX_ – 4Group 2 · AX_ – 4 Group 3 · HS_ – 4Group 3 · HS_ – 4 Group 4 · HS_ – 3Group 4 · HS_ – 3 Group 5 · AX_ – 3Group 5 · AX_ – 3 Group 6 · EAC – 18Group 6 · EAC – 18 Group 7 · HS_ – 5Group 7 · HS_ – 5 Group 8 · CSO – 3Group 8 · CSO – 3
RDS data file (.gzd) 
[Gözlem]
Tarih=29.12.2022
Saat=07:30
Gözlemci=Başar COŞKUNOĞLU
KontrolEden=Başar COŞKUNOĞLU
Durumaçısı=3.49
Enlemaçısı=-2.65
Boylamaçısı=40.39
Boylamfark=2
GKalite=3
GDurum=H.S
Kuzeyaçısı=-0.2
Sırano=19627
AyRasatNo=14
RasatÖnceki=27.12.2022
RasatSonraki=30.12.2022

[Leke Grupları]
Grupsayısı=8:6:2
LekeSayısı=44:36:8
RölatifSayı=124:96:28
01=HS_ 04 +21.787 +74.406 114.796 +0.000 0000 0 +22.812 +76.391 +20.761 +72.420 +21.787 +75.891 +21.787 +72.921
02=AX_ 04 +25.510 +66.978 107.368 +0.000 0000 0 +26.176 +68.473 +24.844 +65.483 +25.510 +67.973 +25.510 +65.983
03=HS_ 04 +23.990 +54.159 094.549 +0.000 0000 0 +24.777 +55.390 +23.204 +52.929 +23.990 +54.889 +23.990 +53.429
04=HS_ 03 +23.969 +05.761 046.151 +0.000 0000 0 +24.724 +06.453 +23.214 +05.690 +23.969 +05.642 +23.969 +05.880
05=AX_ 03 +13.445 +00.129 040.519 +0.000 0000 0 +14.880 +00.780 +12.801 -00.522 +13.445 +00.280 +13.445 -00.220
06=EAC 18 +19.660 -34.746 005.644 +0.000 0000 0 +21.821 -28.969 +17.500 -40.524 +19.660 -29.169 +19.660 -40.324
07=HS_ 05 -03.676 +60.638 101.280 +0.000 0000 0 -02.429 +63.311 -04.924 +57.965 -03.676 +62.811 -03.676 +58.465
08=CSO 03 -17.706 -68.314 332.760 +0.000 0000 0 -16.251 -64.969 -19.162 -71.658 -17.706 -65.169 -17.706 -71.458
20221229.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 →

2022/20221229_bc · BC · 6 frames · 128.6 MB · 08:01:38–08:05:17 UT

08:01:38 UT · 40 ms 08:03:14 UT · 40 ms 08:02:38 UT · 40 ms 08:03:54 UT · 70 ms · over-exposed 08:05:17 UT · 70 ms · over-exposed 08:04:37 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.