Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Solar Images Monday, 15 January 2024

‹ 14.01.2024 2024 16.01.2024 ›

Photosphere sunspot drawing and RDS evaluation

15.01.2024 photosphere drawing

High-resolution scan (3230 px)

Time
09:37 UT
Observer
Ergün EGE
g
8
f
25
R
105
Seeing
3 / 5

Sunspot groups and observation details →

Sunspot groups (from the drawing)

Group 1 · AX_ – 1Group 1 · AX_ – 1 Group 2 · HA_ – 2Group 2 · HA_ – 2 Group 3 · AX_ – 1Group 3 · AX_ – 1 Group 4 · BXI – 12Group 4 · BXI – 12 Group 5 · AX_ – 2Group 5 · AX_ – 2 Group 6 · HS_ – 2Group 6 · HS_ – 2 Group 7 · CSI – 4Group 7 · CSI – 4 Group 8 · AX_ – 1Group 8 · AX_ – 1
RDS data file (.gzd) 
[Gözlem]
Tarih=15.01.2024
Saat=09:37
Gözlemci=Ergün EGE
KontrolEden=
Durumaçısı=-4.6
Enlemaçısı=-4.52
Boylamaçısı=37.79
Boylamfark=1
GKalite=3
GDurum=B.A
Kuzeyaçısı=-0.4
Sırano=19902
AyRasatNo=7
RasatÖnceki=14.01.2024
RasatSonraki=16.01.2024

[Leke Grupları]
Grupsayısı=8:3:5
LekeSayısı=25:4:21
RölatifSayı=105:34:71
01=AX_ 01 +09.830 -12.540 025.250 -1.000 0000 0 +10.218 -12.166 +09.441 -12.915
02=HA_ 02 +04.922 -51.304 346.486 -1.000 0000 0 +05.923 -50.249 +03.920 -52.360
03=AX_ 01 +06.417 -61.871 335.919 -1.000 0000 0 +06.818 -61.290 +06.160 -62.453
04=BXI 12 -20.986 +53.400 090.830 +0.000 0000 0 -18.169 +58.216 -23.804 +47.863 -20.986 +58.160 -20.986 +48.630
05=AX_ 02 -17.154 +06.104 043.894 -1.000 0000 0 -16.583 +07.790 -17.725 +05.130
06=HS_ 02 -06.128 +01.605 039.395 -1.000 0000 0 -04.482 +03.410 -07.774 +00.169
07=CSI 04 -20.853 -33.235 004.555 +0.000 0000 0 -18.742 -30.778 -22.965 -35.691 -20.853 -30.978 -20.853 -35.491
08=AX_ 01 -11.190 -80.104 317.686 -1.000 0000 0 -10.858 -77.907 -11.523 -82.302
20240115.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 →

2024/20240115_ee · EE · 3 frames · 64.3 MB · 09:21:49–09:24:21 UT

09:21:49 UT · 30 ms 09:23:42 UT · 40 ms · over-exposed 09:24:21 UT · 50 ms · over-exposed

Coronado H-α animations from frame sequences

No Coronado observation for this day.