London, June 20 (Prensa Latina) Just a few hours earlier, the most popular astronomical season of the yr will formally start with the arrival at the moment, June 20, of the summer time solstice and the longest day within the northern hemisphere.
This cycle will final roughly 93 days and 16 hours, and can finish on September 22 with the start of autumn, scientists inform the digital web site tutiempo.com.
The exact dates of the solstices and equinoxes change every year, which complicates the comparability of seasonal information. The start of summer time can happen on three totally different dates on the calendar, between June 20 and 22.
This starting of summer time is outlined by the moment by which the Earth passes via the purpose in its orbit from which the Solar presents its most northern declination. On the day this occurs, the Solar reaches its highest elevation above the horizon at midday and describes its longest arc within the sky. Consequently, that’s the day with probably the most hours of sunshine of the yr.
Moreover, for a number of days the utmost peak of the Solar at midday seems to not change, and due to this, the start of summer time can be referred to as the summer time solstice (from the Latin solstitium, Nonetheless Solar).
Summer time nights, though brief, are normally the warmest of the yr, and due to this fact characterize a superb alternative to discover the sky, and in 2024 through the month of July, Mercury will make a short look, whereas Venus will probably be seen very low on the horizon since August. We must wait till early September to see Saturn rise within the east at nightfall.
The pre-sunrise sky, however, will start the season with three planets seen: Mars, Jupiter and Saturn, however the final one will disappear in mid-September within the glow of daybreak.
The start of summer time within the northern hemisphere coincides with the start of winter within the southern hemisphere.
