Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 15 March 2023

‹ 14.03.2023 2023 20.03.2023 ›

Photosphere sunspot drawing and RDS evaluation

15.03.2023 photosphere drawing

High-resolution scan (3230 px)

Time
06:51 UT
Observer
Olcay PLEVNE
g
9
f
24
R
114
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 2Group 1 · AX_ – 2 Group 2 · AX_ – 2Group 2 · AX_ – 2 Group 3 · HS_ – 2Group 3 · HS_ – 2 Group 4 · CRI – 6Group 4 · CRI – 6 Group 5 · BXI – 5Group 5 · BXI – 5 Group 6 · AX_ – 2Group 6 · AX_ – 2 Group 7 · HS_ – 1Group 7 · HS_ – 1 Group 8 · AX_ – 2Group 8 · AX_ – 2 Group 9 · BXI – 2Group 9 · BXI – 2
RDS data file (.gzd) 
[Gözlem]
Tarih=15.03.2023
Saat=06:51
Gözlemci=Olcay PLEVNE
KontrolEden=Ergün EGE
Durumaçısı=-24.4
Enlemaçısı=-7.17
Boylamaçısı=119.85
Boylamfark=3
GKalite=3
GDurum=K.T
Kuzeyaçısı=0.0
Sırano=19675
AyRasatNo=9
RasatÖnceki=14.03.2023
RasatSonraki=20.03.2023

[Leke Grupları]
Grupsayısı=9:2:7
LekeSayısı=24:4:20
RölatifSayı=114:24:90
01=AX_ 02 +22.372 +06.787 126.637 +0.000 0000 0 +22.955 +08.670 +21.789 +05.506 +22.372 +07.869 +22.372 +05.705
02=AX_ 02 +10.904 -03.755 116.950 +0.000 0000 0 +11.832 -03.427 +09.976 -04.820 +10.904 -03.559 +10.904 -03.952
03=HS_ 02 -24.614 +70.191 190.410 +0.000 0000 0 -23.113 +72.768 -26.115 +67.613 -24.614 +72.269 -24.614 +68.114
04=CRI 06 -27.550 +33.811 153.661 +0.000 0000 0 -24.170 +39.781 -31.830 +27.841 -27.550 +39.581 -27.550 +28.410
05=BXI 05 -19.970 +21.708 141.558 +0.000 0000 0 -18.661 +23.418 -21.280 +19.999 -19.970 +23.218 -19.970 +20.199
06=AX_ 02 -11.205 +18.213 138.630 +0.000 0000 0 -09.905 +19.120 -12.505 +17.415 -11.205 +18.566 -11.205 +17.860
07=HS_ 01 -09.414 +00.189 120.390 +0.000 0000 0 -08.531 +00.947 -10.297 -00.569 -09.414 +00.447 -09.414 -00.690
08=AX_ 02 -16.235 -00.290 119.560 +0.000 0000 0 -15.451 +00.243 -17.180 -00.823 -16.235 -00.257 -16.235 -00.323
09=BXI 02 -06.200 -38.710 081.779 +0.000 0000 0 -04.939 -36.305 -07.461 -39.838 -06.200 -36.505 -06.200 -39.638
20230315.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 →

2023/20230315_op · OP · 2 frames · 10.7 MB · 06:42:05–06:43:27 UT

06:43:27 UT · 30 ms · over-exposed 06:42:05 UT · 30 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.