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Is London England far enough south to get a completely dark sky - without astronomical twilight lasting all night near the summer solstice?
DiamondXmas
No.
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Does it get darker than astronomical twilight in London England on nights near the June solstice?
Wikipedia sez: "Astronomical twilight is defined to begin in the morning, and to end in the evening when the center of the Sun is geometrically 18 degrees below the horizon." London, England is at 51 degrees north latitude. At midnight in the June Solstice, the Sun is at a declination of 23.5 degrees (approximately), so the over-the-pole angular distance is (90-51) + (90-23.5) degrees, or 105 degrees. The horizon is 90 degrees, so the Sun is 15 degrees below the northern horizon at midnight on June 21. So, no, it won't meet the definition for "darker than astronomical twilight".
Simple Question - Is there anywhere in England where astronomical twilight ends at night near June 21st?
No it only happens south of 48½ degrees north latitude.
If there was no light Pollution in London England - would the sky become pitch black at the time of the Summer Solstice?
No, there were no light pollution in London, England, it would not be pitch black at Summer Solstice because there is a full moon.================================Answer #2:At the time of the Summer Solstice, the sun's declination reaches roughly +23.5°.London's latitude is in the neighborhood of 51.5° North. That's still 15° southof the Arctic Circle, so the sun dips as much as 15° below London's horizon.That ought to be plenty to guarantee a very dark night.There's no connection between the Summer Solstice and the phases of the Moon.
Does the sun go more than 18 degrees below the horizon at night in London England near the June Solstice?
At the June Solstice, the Sun is about 23.5 degrees north of the equator. London is at 51.5 degrees north latitude. So at midnight around the solstice, the Sun is (90-51.5) + (90-23.5) degrees north of London. So, the Sun is 105 degrees away from London. The northern horizon is 90 degrees, so the Sun is only 15 degrees below the northern horion.
What time and location does the sun rise in Nottingham?
The time of sunrise and sunset is very dependent on the precise location and the date in question. Please re-post your question with the date and the city name or ZIP code.You can calculate the time of sunrise and sunset easily by visiting the United States Naval Observatory web site's Sunrise & Sunset calculator. You will need the date, city and state for US locations, or the date, latitude, longitude and time zone for any other locations in the world.The site for cities and towns in the United States ishttp://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-one-day-usand for the rest of the worldhttp://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-one-day-worldYou can also calculate the times of sunrise and sunset for one year at a given location at the site:http://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-one-year-us orhttp://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-one-year-worldNottingham, England is at 52 degrees, 57 minutes north latitude, 1 degree 09 minutes west longitude.So for today, December 29, 2009, here it is;Sun and Moon Data for One DayThe following information is provided for Nottingham, UK (longitude W1.1, latitude N53.0): Tuesday29 December 2009 Universal TimeSUNBegin civil twilight 07:36Sunrise 08:18Sun transit 12:07Sunset 15:56End civil twilight 16:38MOONMoonrise 12:38 on preceding dayMoonset 06:01Moonrise 13:19Moon transit 22:13Moonset 07:13 on following dayPhase of the Moon on 29 December: waxing gibbous with 93% of the Moon's visible disk illuminated.Full Moon on 31 December 2009 at 19:14 Universal Time.
Does astronomical twilight end on nights near the summer solstice in Southampton England UK?
Astronomical twilight does not end on nights near the summer solstice in Southampton, England.
Does astronomical twilight end near the summer solstice when observed from Greenwich England?
No, astronomical twilight does not end near the summer solstice when observed from Greenwich, England. On the summer solstice, which is around June 21st, astronomical twilight usually ends in the early morning hours before sunrise.
Is Stonehenge England far enough south for complete darkness to occur near the summer solstice - as in no twilight along the northern horizon?
The summer solstice is the longest day of the year, but at Stonehenge it still becomes completely dark at night.
Does it get darker than astronomical twilight in London England on nights near the June solstice?
Wikipedia sez: "Astronomical twilight is defined to begin in the morning, and to end in the evening when the center of the Sun is geometrically 18 degrees below the horizon." London, England is at 51 degrees north latitude. At midnight in the June Solstice, the Sun is at a declination of 23.5 degrees (approximately), so the over-the-pole angular distance is (90-51) + (90-23.5) degrees, or 105 degrees. The horizon is 90 degrees, so the Sun is 15 degrees below the northern horizon at midnight on June 21. So, no, it won't meet the definition for "darker than astronomical twilight".
Are there any places in Great Britain where astronomical twilight ends near the summer solstice?
No. For any location in England, on June 21, the Sun is never more than 18 degrees below the horizon, which is the definition of "astronomical twilight". If by "Great Britain" you mean to included British colonies and possessions, then yes; places like Gibraltar and Bermuda are far enough south so that the do experience complete darkness at night.
Does it get darker than astronomical twilight in Newcastle-upon-Tyne England in June?
No because the latitude is 55 degrees N so the Sun never goes more than 11½ degrees below the northern horizon, so nautical twilight and astronomical twilight do not end.
Simple Question - Is there anywhere in England where astronomical twilight ends at night near June 21st?
No it only happens south of 48½ degrees north latitude.
What does the people of England do on summer solstice?
Most ignore it
What is the longest day of summer in england?
The summer solstice, June 21.
Where do pagans celebrate the solstice in England?
Stonehendge is the main gathering point
What links friar's heel pagan stone England solstice?
STONEHENGE..:)
What is the best Twilight related event in England?
None of them, because it's Twilight.
