astro_calculations

Description:

astro calculations

astro_calculations #
astro_calculations is a Dart package for astronomical calculations. astro_calculations is inspired by Pysolar and based on this pdf by Ibrahim Reda and Afshin Andreas.
astro_calculations is currently a work in progress. It will soon support many more calculations.
Usage #
SUNRISE TIME

By default all functions return DateTime object for UTC. To get it in Local format, pass isLocal as true.
final latitude = 28.6139;
final longitude = 77.2090;
final dateTime = DateTime.utc(2020, 12, 30);

final sunRiseTime =
getSunRiseTime(latitude, longitude, dateTime, isLocal: true);

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SUNSET TIME
final sunSetTime =
getSunSetTime(latitude, longitude, dateTime, isLocal: true);

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SUN TRANSIT TIME
final sunTransitTime =
getSunTransitTime(latitude, longitude, dateTime, isLocal: true);

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AZIMUTH ANGLE OF SUN
final azimuthAngle =
getSunAzimuthAngle(latitude, longitude, elevation); //elevation is w.r.t. Sea level

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Example #
void main() {
final latitude = 28.6139;
final longitude = 77.2090;
final dateTime = DateTime.utc(2020, 12, 30);

final sunRiseTime =
getSunRiseTime(latitude, longitude, dateTime, isLocal: true);
final sunSetTime =
getSunSetTime(latitude, longitude, dateTime, isLocal: true);
final sunTransitTime =
getSunTransitTime(latitude, longitude, dateTime, isLocal: true);

print('Sunrise Time: $sunRiseTime');
print('Sunset Time: $sunSetTime');
print('Sun Transit Time: $sunTransitTime');
}
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OUTPUT
Sunrise Time: 2020-12-30 07:13:20.000
Sunset Time: 2020-12-30 17:34:16.000
Sun Transit Time: 2020-12-30 12:23:46.000

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Created from templates made available by Stagehand under a BSD-style
license.