Kahale Observatory (KOBS)
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Local (Pacific)
Sun Mar 22 14:04:35 2026
Sidereal (LST)
0:49:56.44
Universal (UTC)
Sun Mar 22 21:04:35 2026
Sun/Moon Ephemeris
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Mon Mar 23 09:22:05 2026
Mon Mar 23 07:12:59 2026
Set
Mon Mar 23 00:48:38 2026
Sun Mar 22 19:31:44 2026
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Messier Objects
Compute Sky Background from Star mag
Calc Std Background Flux and Sky Background
Bortle Scale
Spreadsheets for Astronomical Calculations
Sky Brightness Chart
Calculate Magnitude Limits
Calculate Telescope Capabilities (limiting mag, etc)
Camera Suitability (Binning)
Separating Stars and Deep Sky Objects
CDSportal: ID objects
PixInsight Flow Charts
NED object info
Planetary AP (CloudyNights)
FOV Calculator
Minima of Algol
Oregon Dark Skies
Printable Sky Charts
Top Spring Targets
Ultimate Spring Sky Guide
Ultimate Summer Sky Guide
Ultimate Fall Sky Guide
Ultimate Winter Sky Guide
Top 100 DSOs
Time And Date