Visibility Plot

Select Mode: Visibility Moon Phase & Distance

Input (below is an example): 100.265556, 27.101667, 3200 today Asia/Shanghai NGC2264 06 40 58 +09 53 44 IC2177 07 05 37 -10 53 02 M101 14 03 13 54 20 56 M42 05 35 17 -05 23 28

By clicking "Plot", you are aware and agree to the terms of use.

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Terms of Use

1. Your input data will be saved locally in your browser.

2. Your input data will be sent to a server for processing; no information is stored on the server.

3. You will use this tool fairly to save the server resources (and our planet).

4. No warranty is provided for the accuracy of the results.

5. Terms of Astropy.

This tool is used to plot the visibility of celestial objects at a given location and time. Input format:

longitude (in degrees), latitude (in degrees), elevation (in meters)
yyyy-mm-dd
time zone (e.g., Asia/Shanghai)
object1 RAhh RAmm RAss +DECdd DECmm DECss
object2 RAhh RAmm RAss -DECdd DECmm DECss
...

You can use today to plot the visibility for today. Object names can be arbitrary strings without white spaces. The RA and DEC are in sexagesimal format.