Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 13 March 2023

‹ 11.03.2023 2023 14.03.2023 ›

Photosphere sunspot drawing and RDS evaluation

13.03.2023 photosphere drawing

High-resolution scan (3229 px)

Time
07:00 UT
Observer
Ergün EGE
g
9
f
20
R
110
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · AX_ – 1Group 2 · AX_ – 1 Group 3 · AX_ – 1Group 3 · AX_ – 1 Group 4 · HS_ – 1Group 4 · HS_ – 1 Group 5 · AX_ – 2Group 5 · AX_ – 2 Group 6 · BXI – 11Group 6 · BXI – 11 Group 7 · HS_ – 1Group 7 · HS_ – 1 Group 8 · AX_ – 1Group 8 · AX_ – 1 Group 9 · HS_ – 1Group 9 · HS_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=13.03.2023
Saat=07:00
Gözlemci=Ergün EGE
KontrolEden=Korhan YELKENCİ
Durumaçısı=-24.06
Enlemaçısı=-7.21
Boylamaçısı=146.13
Boylamfark=3
GKalite=3
GDurum=B.A , K.T
Kuzeyaçısı=0.2
Sırano=19673
AyRasatNo=7
RasatÖnceki=11.03.2023
RasatSonraki=14.03.2023

[Leke Grupları]
Grupsayısı=9:3:6
LekeSayısı=20:3:17
RölatifSayı=110:33:77
01=AX_ 01 +11.494 +78.770 224.207 +0.000 0000 0 +12.177 +79.992 +10.811 +76.162 +11.494 +80.185 +11.494 +77.355
02=AX_ 01 +23.334 +28.489 174.619 +0.000 0000 0 +23.947 +28.823 +22.722 +28.154 +23.334 +28.323 +23.334 +28.655
03=AX_ 01 +11.835 -29.810 117.490 +0.000 0000 0 +12.215 -28.801 +11.455 -29.362 +11.835 -30.290 +11.835 -29.590
04=HS_ 01 -23.115 +45.363 191.493 +0.000 0000 0 -21.988 +46.678 -24.242 +44.490 -23.115 +45.957 -23.115 +44.769
05=AX_ 02 -24.666 +14.420 160.550 +0.000 0000 0 -24.319 +14.869 -25.130 +13.971 -24.666 +14.369 -24.666 +14.471
06=BXI 11 -19.823 -02.314 143.816 +0.000 0000 0 -18.144 -00.157 -21.502 -04.471 -19.823 -00.357 -19.823 -04.271
07=HS_ 01 -11.828 -06.674 139.456 +0.000 0000 0 -11.425 -06.200 -12.232 -07.346 -11.828 -06.601 -11.828 -06.747
08=AX_ 01 -16.580 -07.908 138.222 +0.000 0000 0 -15.473 -07.555 -16.643 -08.261 -16.580 -08.550 -16.580 -07.761
09=HS_ 01 -14.598 -27.531 118.599 +0.000 0000 0 -13.837 -26.656 -15.359 -28.406 -14.598 -27.156 -14.598 -27.906
20230313.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 →

2023/20230313_ee · EE · 2 frames · 42.9 MB · 07:05:27–07:07:04 UT

07:05:27 UT · 30 ms 07:07:04 UT · 40 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.