Summer solstice 2021 on Father’s Day, the longest of the year, marks Earth’s changing seasons

The official begin of summer time kicks off in the Northern Hemisphere as we speak (June 20), marking the longest day of the year — which additionally occurs to coincide with Father’s Day. 

The June solstice will happen at 11:32 p.m. EDT (0332 June 21 GMT), when the solar reaches the level at which it’s farthest north of the celestial equator. Reaching its highest and northernmost level in the sky, the solar should journey its longest path, which means it should take longer to rise and to set, which is why as we speak marks the longest day — or longest interval of daylight hours — and shortest night time. 

In addition, the summer solstice happens at the second the northern half of Earth is tilted towards the solar, which means the Northern Hemisphere receives daylight at the most direct angle of the year. At this time, the solar will seem instantly overhead for some extent on the Tropic of Cancer (latitude 23.5 levels north) in the central Pacific Ocean, 817 miles (1,314 kilometers) east-northeast from Honolulu. Conversely, the June solstice marks the starting of winter in the Southern Hemisphere, when the solar is at its lowest level in the sky and the southern half of Earth is tilted away from the solar. 

Related: What Happens at the Summer Solstice?

The timing of the June solstice relies on when the solar reaches its northernmost level from the celestial equator, usually between June 20-22. And this year, the solstice additionally occurs to fall on Father’s Day! Here’s what skywatchers can anticipate to see as dads round the world rejoice on Sunday, in addition to throughout the week following the summer time solstice.

Beginning Sunday morning (June 20), Mercury appeared above the horizon about half-hour earlier than dawn and could also be seen at daybreak. Solstice will happen at 11:32 p.m. EDT (0332 June 21 GMT) Sunday night time. However, throughout the day, viewers in the Northern Hemisphere could expertise greater than 14 hours of daylight. You can use The Farmer’s Almanac Sunrise and Sunset Calculator to find out what number of hours of daylight you’ll get in your location throughout the solstice.

Later in the week, viewers will likely be handled to different skywatching occasions, beginning Monday night time (June 21), when Venus and the vivid star Pollux will seem closest to one another (a bit of over 5 levels aside). 

On Tuesday (June 22), the vivid star Antares will seem about 5 levels beneath the waxing gibbous moon — solely shortly earlier than the moon reaches perigee, or its closest strategy to Earth in its orbit, on Wednesday (June 23). Then, on Thursday (June 24), the subsequent full moon, additionally referred to as the Strawberry Moon, will happen at 2:40 p.m. EDT (1840 GMT) and seem full to stargazers by way of early Saturday morning, according to NASA.

While the June solstice marks the official begin of summer time and the longest day of the year, it additionally represents a turning level of the year: As the solar begins its annual southward migration, the days will begin getting shorter as soon as once more.

Follow Samantha Mathewson @Sam_Ashley13. Follow us on Twitter @Spacedotcom and on Facebook.

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