Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Wednesday, 3 April 2024

‹ 01.04.2024 2024 04.04.2024 ›

Photosphere sunspot drawing and RDS evaluation

03.04.2024 photosphere drawing

High-resolution scan (3234 px)

Time
07:30 UT
Observer
Burçin TANIK
g
3
f
3
R
33
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 · HH_ – 1Group 3 · HH_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=3.04.2024
Saat=07:30
Gözlemci=Burçin TANIK
KontrolEden=Korhan YELKENCİ
Durumaçısı=-26.22
Enlemaçısı=-6.4
Boylamaçısı=78.2
Boylamfark=2
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.2
Sırano=19949
AyRasatNo=2
RasatÖnceki=01.04.2024
RasatSonraki=04.04.2024

[Leke Grupları]
Grupsayısı=3:3:0
LekeSayısı=3:3:0
RölatifSayı=33:33:0
01=AX_ 01 +05.180 -12.836 065.364 -1.000 0000 0 +05.180 -12.836 +05.180 -12.836
02=AX_ 01 +07.970 -55.490 022.710 -1.000 0000 0 +07.970 -55.490 +07.970 -55.490
03=HH_ 01 +06.544 -77.890 000.310 +0.000 0000 0 +07.826 -76.379 +05.263 -79.400 +06.544 -76.880 +06.544 -78.900
20240403.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 →

2024/20240403_bto · BTO · 3 frames · 64.3 MB · 07:33:16–07:40:29 UT

07:38:50 UT · 30 ms 07:40:29 UT · 70 ms · over-exposed 07:33:16 UT · 70 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.