Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Tuesday, 30 January 2024

‹ 27.01.2024 2024 01.02.2024 ›

Photosphere sunspot drawing and RDS evaluation

30.01.2024 photosphere drawing

High-resolution scan (3233 px)

Time
09:05 UT
Observer
H.ÇAKMAK-K.Y.
g
6
f
15
R
75
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 4Group 1 · AX_ – 4 Group 2 · ?__ – 1Group 2 · ?__ – 1 Group 3 · ?__ – 5Group 3 · ?__ – 5 Group 4 · BXO – 3Group 4 · BXO – 3 Group 5 · AX_ – 1Group 5 · AX_ – 1 Group 6 · AX_ – 1Group 6 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=30.01.2024
Saat=09:05
Gözlemci=H.ÇAKMAK-K.Y.
KontrolEden=Burçin TANIK
Durumaçısı=-11.27
Enlemaçısı=-5.85
Boylamaçısı=200.58
Boylamfark=2
GKalite=3
GDurum=G.T , B.A , H.S
Kuzeyaçısı=-0.5
Sırano=19908
AyRasatNo=13
RasatÖnceki=27.01.2024
RasatSonraki=01.02.2024

[Leke Grupları]
Grupsayısı=6:3:3
LekeSayısı=15:10:5
RölatifSayı=75:40:35
01=AX_ 04 +05.189 -48.316 152.264 +0.000 0000 0 +06.217 -47.660 +04.161 -49.566 +00.000 +00.000 +00.000 +00.000
02=?__ 01 +16.467 -67.287 133.293 +0.000 0000 0 +17.230 -66.887 +15.705 -67.686 +16.467 -67.388 +16.467 -67.187
03=?__ 05 +19.743 -73.425 127.155 +0.000 0000 0 +21.350 -68.924 +18.451 -77.926 +19.743 -69.424 +19.743 -77.426
04=BXO 03 -12.597 +51.730 252.310 20.979 0000 0 -11.737 +53.400 -13.457 +50.590 -13.235 +52.831 -12.313 +50.425
05=AX_ 01 -09.264 +27.731 228.311 -1.000 0000 0 -09.264 +27.731 -09.264 +27.731
06=AX_ 01 -12.551 -13.315 187.265 -1.000 0000 0 -12.551 -13.315 -12.551 -13.315
20240130.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 →

2024/20240130_hc · HC · 5 frames · 107.1 MB · 09:16:47–09:29:05 UT

09:22:37 UT · 30 ms 09:16:47 UT · 40 ms 09:27:43 UT · 30 ms 09:29:05 UT · 60 ms · over-exposed 09:21:48 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.