Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Thursday, 30 March 2023

‹ 29.03.2023 2023 02.04.2023 ›

Photosphere sunspot drawing and RDS evaluation

30.03.2023 photosphere drawing

High-resolution scan (3233 px)

Time
07:35 UT
Observer
Burçin TANIK
g
9
f
18
R
108
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 2Group 1 · AX_ – 2 Group 2 · HS_ – 1Group 2 · HS_ – 1 Group 3 · CSO – 3Group 3 · CSO – 3 Group 4 · HS_ – 1Group 4 · HS_ – 1 Group 5 · BXI – 4Group 5 · BXI – 4 Group 6 · ?__ – 1Group 6 · ?__ – 1 Group 7 · AX_ – 2Group 7 · AX_ – 2 Group 8 · AX_ – 1Group 8 · AX_ – 1 Group 9 · ?__ – 3Group 9 · ?__ – 3
RDS data file (.gzd) 
[Gözlem]
Tarih=30.03.2023
Saat=07:35
Gözlemci=Burçin TANIK
KontrolEden=Hikmet ÇAKMAK
Durumaçısı=-26.04
Enlemaçısı=-6.66
Boylamaçısı=281.68
Boylamfark=2
GKalite=3
GDurum=
Kuzeyaçısı=0.0
Sırano=19682
AyRasatNo=16
RasatÖnceki=29.03.2023
RasatSonraki=02.04.2023

[Leke Grupları]
Grupsayısı=9:5:4
LekeSayısı=18:11:7
RölatifSayı=108:61:47
01=AX_ 02 +17.926 +74.122 355.802 +0.000 0000 0 +18.386 +75.700 +17.465 +73.237 +17.926 +74.854 +17.926 +73.391
02=HS_ 01 +23.161 +62.668 344.348 +0.000 0000 0 +24.360 +63.683 +21.961 +61.654 +23.161 +63.182 +23.161 +62.153
03=CSO 03 +20.547 +47.263 328.943 18.490 0000 0 +22.513 +51.868 +18.581 +42.657 +21.459 +50.829 +18.868 +43.490
04=HS_ 01 +14.144 -03.144 278.536 +0.000 0000 0 +14.980 -02.383 +13.309 -03.905 +14.144 -02.883 +14.144 -03.405
05=BXI 04 +07.669 -36.964 244.716 +0.000 0000 0 +08.347 -34.873 +06.992 -39.550 +07.669 -35.125 +07.669 -38.803
06=?__ 01 -21.791 +82.686 004.366 +0.000 0000 0 -20.776 +83.765 -22.807 +81.607 -21.791 +83.265 -21.791 +82.107
07=AX_ 02 -21.277 +69.786 351.466 +0.000 0000 0 -19.890 +71.580 -22.664 +68.514 +00.000 +00.000 +00.000 +00.000
08=AX_ 01 -27.586 +63.232 344.912 -1.000 0000 0 -27.586 +63.232 -27.586 +63.232
09=?__ 03 -19.141 +23.635 305.315 +0.000 0000 0 -17.957 +24.624 -20.324 +22.647 -19.141 +24.124 -19.141 +23.146
20230330.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 →

2023/20230330_bto · BTO · 5 frames · 107.1 MB · 07:24:58–07:29:22 UT

07:26:17 UT · 40 ms 07:28:22 UT · 30 ms 07:29:22 UT · 60 ms · over-exposed 07:24:58 UT · 60 ms · over-exposed 07:27:27 UT · 60 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.