Question 1

How accurate is go-sunrise for calculating sunset times?

Accepted Answer

It's accurate to within a few minutes for most locations using the standard sunrise equation, but it doesn't include atmospheric refraction corrections, so for high-precision needs like navigation, additional adjustments may be necessary.

Question 2

Does go-sunrise automatically handle time zones?

Accepted Answer

No, you need to provide the date in the desired timezone when calling SunriseSunset(). The library returns time.Time values based on that input, so timezone management is up to the developer.

Question 3

go-sunrise vs other Go astronomy libraries like soniakeys/meeus?

Accepted Answer

go-sunrise is minimalist and focused only on sunrise/sunset, making it simpler and lighter. In contrast, libraries like meeus offer comprehensive astronomical calculations but with more complexity. Choose based on your feature needs.

Question 4

How to install and use go-sunrise in a Go project?

Accepted Answer

Run 'go get github.com/nathan-osman/go-sunrise', then import it and call sunrise.SunriseSunset() with latitude, longitude, and date parameters. The README provides clear examples for basic usage.

Question 5

Can go-sunrise calculate sunrise for multiple dates efficiently?

Accepted Answer

You can loop through dates, but it's not optimized for batch processing. For large-scale calculations, consider caching or profiling performance, as it may slow down with thousands of calls.

Question 6

What happens if I use go-sunrise in polar regions?

Accepted Answer

It correctly handles edge cases by returning zero time values (time.Time{}) when the sun doesn't rise or set, allowing applications to detect and manage perpetual day or night scenarios.

go-sunrise

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