logo kso logo uni graz
 Live Data
 » Latest Images
 » Latest Hα (ESA SSA)
 » Flare Monitoring (live)
 Synoptic Data
 » Daily Overview
 » Two Weeks Photosphere
 » Two Weeks Chromosphere 
 » Sunspot Numbers
 » Sunspot Drawings
 » Hα
 » White-light
 » CaIIK
 » Filaments
 » Synoptic Maps
 Full Data Archive
 » Archive / Ftp-Server / Local
 » Fast Mirror Archive / Graz
 Archive Database Search
 » Observation Database
 » KSO Sunspots
 » NOAA Active Regions
 » Flares
 » Filaments
 » KSO observing logs
 Misc.
 » Solar Ephemeris
 » NOAA Solar Region Data
2026-04-17 Julian Date: 2461148.0006 P = -25.83°    B0 = -5.43°    L0 = 335.8°  Carr# 2310
12:00 UTC Dist. = 1.003 AU    App. Diam. = 1912.6"    Elevation = 51.93° Sunrise  04:13:46 UTC      Sunset  17:55:00 UTC
Sun - Photosphere for 2026-04-17 Sun - Chromosphere for 2026-04-17
KSO Sunspot Drawing 10:18 UTC i 
Side reversed! » Archive
KSO White-light 06:07:09 UTC i 
Synoptic *.jpg  *.fits.gz
Contrast *.jpg  *.fits.gz » Daily Images/Movies
Movie    » White-light Archive
RI = 45
g = 3
f = 22 		 Observing Log  
 Monthly Summary
 NOAA/SWPC Event List   i
 Hα/GOES Intensity Plot
KSO Hα 06:07:13 UTC i 
Synoptic *.jpg  *.fits.gz
Contrast *.jpg  *.fits.gz » Daily Images/Movies
Movie     » Hα Archive
KSO Ca II K 10:21:08 UTC i 
Synoptic *.jpg  *.fits.gz
Contrast *.jpg  *.fits.gz » Daily Images/Movies
Movie     » Ca II K Archive
KSO Prominences 10:20:07 UTC   i
» Daily Images
KSO Hα Blue Wing   i
» Archive   » Daily Images/Movies
« 2026-04-16 « 1 Month 2026-04-17 2026-04-18 »
     Panorama: 2026-04-17 12:00 (UTC)
Since 01.01.2026: 388228 Visits / 7463355 Clicks
» Data Policy » KSO Homepage » Astrophysics and Geophysics » University of Graz     Contact