Fascinating seeing how the sun's horizontal positioning in the sky is affected by earth's mildly elliptical orbit. The Summer solstice & Autumn equinox are both in BST but the sun is further right in the solstice one than it is in the equinox
That's because BST is a human construct made by politicians, nothing to do with technical summer which from Sun position should be between May 5th and August 5th. Equinox is halfway to winter, that far removed from summer.
In that video, the top left is the vernal equinox, the bottom left is the winter solstice, the top right is the summer solstice, and the bottom right is the autumnal equinox.
would be cool if you used the same camera settings to show the fact that the night at the summer solstice doesn't get as dark (it's like that here in London let alone at 53.5N in Lancashire)
As I'm comparing your statistics with ours, it looks like in uk it's more pronounced and a bit shifted. Here are my statistics compared with ours: (We use daylight savings time, and I'm filtering it out so that the changes will be dynamic, otherwise add one hour to summer solstice and autumn equinox) Spring Equinox Astronomical Twilight 04:09 - 04:49 40 min. Nautical Twilight 04:49 - 05:28 38 min. Civil Twilight 05:28 - 06:00 32 min. Sunrise 06:00 Golden Hour 06:00 - 06:42 41 min. Solar Noon 12:05 Golden Hour 17:28 - 18:09 41 min. Sunset 18:09 Civil Twilight 18:09 - 18:42 32 min. Nautical Twilight 18:42 - 19:20 38 min. Astronomical Twilight 19:20 - 20:00 40 min. Day (Sun Above The Horizon) 12 h 9 min. Twilight And Night (Sun Below The Horizon) 11 h 50 min. - Astronomical Night (Dark) 8 h 8 min. Summer Solstice Astronomical Twilight 23:59 - 01:50 1 h 51 min. Nautical Twilight 01:50 - 02:59 1 h 9 min. Civil Twilight 02:59 - 03:44 45 min. Sunrise 03:44 Golden Hour 03:44 - 04:35 50 min. Solar Noon 11:59 Golden Hour 19:22 - 20:13 50 min. Sunset 20:13 Civil Twilight 20:13 - 20:59 45 min. Nautical Twilight 20:59 - 22:08 1 h 8 min. Astronomical Twilight 22:08 - 23:59 1 h 51 min. Day (Sun Above The Horizon) 16 h 28 min. Twilight And Night (Sun Below The Horizon) 7 h 31 min. - Astronomical Night (Dark) Autumn Equinox Astronomical Twilight 03:53 - 04:33 40 min. Nautical Twilight 04:33 - 05:12 38 min. Civil Twilight 05:12 - 05:45 32 min. Sunrise 05:45 Golden Hour 05:45 - 06:26 41 min. Solar Noon 11:50 Golden Hour 17:28 - 18:09 41 min. Sunset 17:55 Civil Twilight 17:55 - 18:27 32 min. Nautical Twilight 18:27 - 19:06 38 min. Astronomical Twilight 19:06 - 19:46 40 min. Day (Sun Above The Horizon) 12 h 10 min. Twilight And Night (Sun Below The Horizon) 11 h 49 min. - Astronomical Night (Dark) 8 h 7 min. Winter Solstice Astronomical Twilight 05:55 - 06:35 40 min. Nautical Twilight 06:35 - 07:17 42 min. Civil Twilight 07:17 - 07:56 39 min. Sunrise 07:56 Golden Hour 07:56 - 08:53 56 min. Solar Noon 11:55 Golden Hour 14:58 - 15:55 56 min. Sunset 15:55 Civil Twilight 15:55 - 16:34 39 min. Nautical Twilight 16:34 - 17:16 42 min. Astronomical Twilight 17:16 - 17:56 40 min. Day (Sun Above The Horizon) 7 h 58 min. Twilight And Night (Sun Below The Horizon) 16 h 1 min. - Astronomical Night (Dark) 11 h 58 min. So the conclusion is that your location has 30 minutes more light during summer solstice and 30 minutes less light during winter solstice.
See, I wish to get two pieces of information: 1. Is there any change in work shifts and schools because of winter solistice? 2. How are the (Islamic)prayers organized during the two solistices, ie, how is the timing of 'fajr' and 'isha' in the summer solistice and 'asr' fixed in the winter solistice?
"True night" only occurs when the Sun is more than 18° below the horizon. Since I'm within 18° of the Arctic Circle, the Sun never gets more than this below the horizon.
Nice Video, great observations. Just was wondering if it was an error at to 0:08 mark when giving the date for the Summer Solstice, I noticed you put June 15th, and I think it should be the 21st....is it a typo or was the recording on the 15th? Just asking not criticizing, but in 2023 records show the 21st. Thanks again, work.
The summer solstice was recorded on 15 June 2023, yes. This is because the weather conditions on the 21st looked poor at the time. In respects to the video, the difference is so small you wouldn't even notice it. The difference in daylight is probably about a minute or two at most.
@ScottRichards10 Yes it's something I noticed when I was 18 in a dark room on a hot summers weekend. It follows a cosine pattern which explains why May 5th even though equidistant, looks much more nearer to mid summer than equinox by a substantial degree. This cosine pattern of the Earth's tilt and orbit makes the tilt do 3 months of change in just two months from Feb 21st to Apr 21st with a whole 23 degrees shifted in that time out of the whole 46 degrees of change from mid winter to mid summer.
Yeah that’s how it is in the uk, where I live Newcastle England sunrise is at 4:27 and sunset 21:51. However in the winter solstice sunrise is at a painfully late 8:31 and sunset 15:47.
Hey Shcotty, it is said that the 21 of March is when the sun is directly over the equator, giving us 12 hours of daytime and 12 hours of nighttime. But did you bother to document the occultation of the sun-Earth-moon system? Did you bother to time lapse the setting sun and rising full moon in April? How about in October? This used to happen 4 X a year, every year. The time of the year when the sun traveled through the zenith after 12PM and the moon traveled through the zenith after 12AM. Did you watch it happen? Did you see it? After 2009, of course you didn't. Hey Shcahdee, it is said that the 21st of June is the longest and hottest time of the year. But is it really? The sun used to make its way across the sky and directly shone upon our heads during the summer months every year. It used to set in the far northwest direction of the sky anywhere from 8PM-10PM. Did you record it? Did you see it? After 2009, of course you didn't. Do you even keep track of the moon for the months of the year? You certainly don't. It is said that the 21st of December is the winter solstice. Really? Do you even bother going outside to see for sure where the sun is truly setting, or is the sun too low in the sky and your sky view too obstructed to see it? The sun is not supposed to set south-southwest! Just sharply southwest during the winter.
I know, it's just that this day was the closest day to the June solstice with perfect weather conditions. The difference between the 15th and 21st is so small it wouldn't even be noticeable on the video though.
