Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Sunday, 7 May 2023

‹ 04.05.2023 2023 08.05.2023 ›

Photosphere sunspot drawing and RDS evaluation

07.05.2023 photosphere drawing

High-resolution scan (3229 px)

Time
10:25 UT
Observer
Ergün EGE
g
7
f
42
R
112
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · BXO – 8Group 1 · BXO – 8 Group 2 · AX_ – 4Group 2 · AX_ – 4 Group 3 · DAI – 9Group 3 · DAI – 9 Group 4 · ESI – 17Group 4 · ESI – 17 Group 5 · HS_ – 1Group 5 · HS_ – 1 Group 6 · BXO – 2Group 6 · BXO – 2 Group 7 · AX_ – 1Group 7 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=7.05.2023
Saat=10:25
Gözlemci=Ergün EGE
KontrolEden=Ergün EGE
Durumaçısı=-22.9
Enlemaçısı=-3.56
Boylamaçısı=138.3
Boylamfark=1
GKalite=3
GDurum=B.A , K.T
Kuzeyaçısı=-0.5
Sırano=19706
AyRasatNo=5
RasatÖnceki=04.05.2023
RasatSonraki=08.05.2023

[Leke Grupları]
Grupsayısı=7:4:3
LekeSayısı=42:38:4
RölatifSayı=112:78:34
01=BXO 08 +10.293 +12.205 150.505 +0.000 0000 0 +12.300 +14.371 +08.583 +10.400 +10.293 +14.171 +10.293 +10.240
02=AX_ 04 +13.728 +05.820 143.382 +0.000 0000 0 +14.755 +06.370 +12.701 +03.793 +00.000 +00.000 +00.000 +00.000
03=DAI 09 +15.192 -02.100 136.299 +0.000 0000 0 +16.671 +01.361 +13.713 -05.363 +15.192 +01.161 +15.192 -05.163
04=ESI 17 +06.851 -20.450 118.255 +0.000 0000 0 +09.763 -13.329 +03.939 -26.762 +06.851 -13.529 +06.851 -26.562
05=HS_ 01 -07.966 -13.121 125.179 +0.000 0000 0 -06.855 -11.752 -09.770 -14.491 -07.966 -12.252 -07.966 -13.991
06=BXO 02 -07.921 -35.313 102.987 +0.000 0000 0 -07.327 -33.567 -08.515 -37.590 -07.921 -33.801 -07.921 -36.825
07=AX_ 01 -05.215 -39.259 099.410 +0.000 0000 0 -04.705 -38.778 -05.724 -39.740 -05.215 -39.278 -05.215 -39.240
20230507.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 →

2023/20230507_ee · EE · 3 frames · 64.3 MB · 10:41:40–10:47:36 UT

10:47:36 UT · 40 ms 10:44:21 UT · 30 ms 10:41:40 UT · 30 ms

Coronado H-α animations from frame sequences

No Coronado observation for this day.