Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 10 February 2022

‹ 09.02.2022 2022 11.02.2022 ›

Photosphere sunspot drawing and RDS evaluation

10.02.2022 photosphere drawing

High-resolution scan (3237 px)

Time
07:55 UT
Observer
Burçin TANIK
g
4
f
29
R
69
Seeing
2 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · CRO – 3Group 1 · CRO – 3 Group 2 · FAI – 20Group 2 · FAI – 20 Group 3 · CSO – 5Group 3 · CSO – 5 Group 4 · AX_ – 1Group 4 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=10.02.2022
Saat=07:55
Gözlemci=Burçin TANIK
KontrolEden=Olcay PLEVNE
Durumaçısı=-15.73
Enlemaçısı=-6.59
Boylamaçısı=331.52
Boylamfark=2
GKalite=2
GDurum=G.T , B.A , K.T
Kuzeyaçısı=-0.9
Sırano=19372
AyRasatNo=6
RasatÖnceki=09.02.2022
RasatSonraki=11.02.2022

[Leke Grupları]
Grupsayısı=4:2:2
LekeSayısı=29:23:6
RölatifSayı=69:43:26
01=CRO 03 +16.910 +61.297 032.817 +0.000 0000 0 +18.229 +65.714 +15.591 +56.880 +16.910 +65.514 +16.910 +57.800
02=FAI 20 +22.860 +03.974 335.494 +0.000 0000 0 +24.347 +12.315 +19.825 -04.367 +22.860 +12.115 +22.860 -04.167
03=CSO 05 -20.745 +62.490 033.569 +0.000 0000 0 -14.950 +64.600 -26.539 +60.390 -20.745 +63.860 -20.745 +60.239
04=AX_ 01 -23.570 +37.127 008.647 -1.000 0000 0 -23.570 +37.127 -23.570 +37.127
20220210.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 →

2022/20220210_bto · BTO · 3 frames · 64.3 MB · 07:29:28–07:35:49 UT

07:29:28 UT · 30 ms 07:35:49 UT · 30 ms 07:33:21 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.