Joachim Köppen DF3GJ ... Kiel, July 2016

This tool is converts between the various coordinates of sky objects. Green fields are input items. Clicking on a text field such as Az or El allows input of these coordinates. RightAscension comes in two formats: decimal hours and degrees. Click the compute button or the Enter key to recompute.

Long [W] Lat [N] Alt. [m]

year day day of year
time [UT] : : LST [hrs]

Azimuth & Elevation
RightAscension & Declination[now]
RaDec @ epoch
Ecliptic Long/Lat
Galactic Long/Lat

Vhelio-shift [km/s] VLSRshift [km/s] fcenter [MHz]

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