DPlot

Thanks David.

I now have a plot the way I want it.

I now need to experiment with adding in additional data, for example moonrise/moonset.

Excellent support, rare to find now days.

Best Regards,
Arlo

When I get to the end and have a Y axis labeled from 3:00:00 PM to 9:00:00 AM, I have no curves plotted.

I'm starting from an Excel spreadsheet, and using Add-in.
Here's my sequence:

1.Select 3 colums of data in the Excel spreadsheet
Day Sunrise Sunset

2. Add-In>DPlot
Resulting plot shows Y ...

David:

Thanks for the reply. Your second plot is EXACTLY what I am looking for. However, I was not able to duplicate your results. I'm just working on one month for now, not a whole year like your plot.

The initial plot of my data comes out with sunrise at the bottom (curve 1), sunset at the top ...

I'm evaluating DPLOT for use for plotting astronomical data - sunset, sunrise, astronomical twilight, etc. to use for planning astronomical imaging sessions.

DPlot almost plots what I want. I'm plotting sunset to sunrise times for the days of the months, with the x-axis the days of the months, and ...