Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 5 May 2024

‹ 04.05.2024 2024 06.05.2024 ›

Photosphere sunspot drawing and RDS evaluation

05.05.2024 photosphere drawing

High-resolution scan (3235 px)

Time
08:40 UT
Observer
Burçin TANIK
g
9
f
69
R
159
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · HS_ – 1Group 1 · HS_ – 1 Group 2 · FHC – 38Group 2 · FHC – 38 Group 3 · HS_ – 1Group 3 · HS_ – 1 Group 4 · CKO – 4Group 4 · CKO – 4 Group 5 · HH_ – 1Group 5 · HH_ – 1 Group 6 · EKI – 18Group 6 · EKI – 18 Group 7 · BXI – 4Group 7 · BXI – 4 Group 8 · AX_ – 1Group 8 · AX_ – 1 Group 9 · AX_ – 1Group 9 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=5.05.2024
Saat=08:40
Gözlemci=Burçin TANIK
KontrolEden=Korhan YELKENCİ
Durumaçısı=-23.19
Enlemaçısı=-3.7
Boylamaçısı=14.93
Boylamfark=2
GKalite=3
GDurum=B.A
Kuzeyaçısı=-1.0
Sırano=19972
AyRasatNo=3
RasatÖnceki=04.05.2024
RasatSonraki=06.05.2024

[Leke Grupları]
Grupsayısı=9:5:4
LekeSayısı=69:45:24
RölatifSayı=159:95:64
01=HS_ 01 +29.629 +47.890 062.820 +0.000 0000 0 +30.208 +48.665 +29.510 +47.115 +29.629 +48.165 +29.629 +47.615
02=FHC 38 +26.628 +20.200 034.932 22.100 0000 0 +30.770 +27.559 +23.179 +12.444 +24.552 +25.325 +28.856 +14.593
03=HS_ 01 +23.171 +05.320 019.962 +0.000 0000 0 +23.742 +05.742 +22.600 +04.321 +23.171 +05.531 +23.171 +05.109
04=CKO 04 +07.762 +00.214 015.144 +0.000 0000 0 +09.670 +04.162 +06.456 -03.735 +07.762 +03.962 +07.762 -03.535
05=HH_ 01 +26.345 -66.642 308.288 +0.000 0000 0 +27.665 -64.829 +25.240 -68.456 +26.345 -65.328 +26.345 -67.955
06=EKI 18 -18.921 -23.186 351.744 31.185 0000 0 -15.510 -18.106 -22.331 -28.265 -16.557 -19.368 -20.750 -26.326
07=BXI 04 -16.800 -36.356 338.574 +0.000 0000 0 -15.181 -33.125 -16.978 -39.587 -16.800 -33.325 -16.800 -39.387
08=AX_ 01 -05.153 -39.400 335.926 -1.000 0000 0 -05.153 -39.400 -05.153 -39.400
09=AX_ 01 -08.441 -52.110 322.919 -1.000 0000 0 -08.441 -52.110 -08.441 -52.110
20240505.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 →

2024/20240505_bto · BTO · 4 frames · 85.7 MB · 08:51:30–08:59:16 UT

08:57:15 UT · 30 ms 08:51:30 UT · 70 ms · over-exposed 08:59:16 UT · 50 ms · over-exposed 08:56:02 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.