Also, the suns daily change of position along the horizon is greater the farther north or south you are from Earths equator. Ironically, insufficient sunlight can be a problem inmany South Texas gardens. Stanislaus County Not only do days grow longer or shorter, the quality of the light changes from season to season as you so well know. The sun then crosses back over the line of the equinox and moves another 23.5 degrees south for the winter solstice. He's a sundial aficionado, whose love for the heavens has taken him to Lake Titicaca in Bolivia and sailing in the North Atlantic, where he earned his celestial navigation certificate through the School of Ocean Sailing and Navigation. The sun starts sinking down by 5:30 PM. The problem is not a lack of sun, but rather too much shade over the garden. Have a wonderful day, Justin. Elementary School, Dallas Hybrid Preparatory at Stephen J. Hay, Downtown Montessori at Ida B. Weadore the shade, and a lawn without shade can be a miserable place. Are you a photographer? The answers lie in the tilt of the Earth as it moves around the sun.
document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Enter your email address to subscribe to this blog and receive notifications of new posts by email. A Winter Sunrise (photograph courtesy Al Past, author of Distant Cousin and other novels). Oops! What direction will the sun be in the middle of the morning in the UK in March? (LogOut/ San Joaquin County. Like half its width? This is important because this is the moment that the sun has stopped rising, ie. The closest point on this curve to the stick will be a perfect north/south line. Bottom line: The amount of the suns movement along your horizon at sunrise or sunset varies with the time of year and with your latitude. It will be close to northeast in Britain in late June.
He wrote: Hello, Im curious to know how far the sun moves north or south along the horizon each day? During the rest of the days throughout the year, the Sun rises in the north or south of 'due east' and sets in the north or south of 'due west'. The pictures youd capture here are unlike any! Or just find a clear spot a place where you can see the horizon and stand in the same spot whenever you watch the sunrise or sunset. You can display here the sun direction and the sunny hours in Austin (United states. UVA is responsible for the immediate tanning effect. Adding fertilizer and pesticide will not help a garden that doesnt get enough sun. The Earth was farthest from the Sun at this time. The sun, over the course of the year, travels through different paths in the sky. Its most perceptible around the equinoxes and least so around the solstices. It arrives at 15:33 UTC on March 20. It will be due south at midday in the UK, as the UK is north of the Tropic of Cancer. Wavelengths: UVA =360 nm, UVB =300 nm.
The movement of the sun from the winter to the summer solstice represents a full 47 degrees of change each year. Factors influencing vitamin D status. The tip of the shortest shadow cast by a stick during the course of a day, or any other object like a tree, will point north in the UK, the base of the stick will point south. With practice this method can be used anywhere in the world, although it is not very practical in the tropics near the middle of the day as the sun is too high. CICARMA, Emanuela, et al. it is no longer east of you, and before it starts setting and heads west of you. Facebook Easy Access. Wells Academy, Dr. Frederick D. Haynes, III Global Preparatory Academy at Paul Quinn College, Dr. Frederick Douglass Todd Sr. Middle School, Dr. Wright L. Lassiter Jr. The suns movement from day to day along your horizon at the sunrise or sunset point is most noticeable around the equinoxes.
So, make sure to get your late lunch fix and head to any of the parks, for example, Klyde Warren Park to watch mauve and gold hues reflected on the city skyline caused by sunset.
We never post anything without your permission. The sun rises due east on only two days of the year, the equinoxes, near March 21 and September 22 each year. Casey Portable Storage three areas in the Central Valley with warehouses located in Stockton, Modesto and Atwater, CA. Not only do we provide do-it-yourself solutions, we also offer full service moving and storage services.
2120 W. Jefferson Blvd., Dallas, TX 75208. Anywhere in the world that is north of the Tropic of Cancer, and that includes all of Europe and the US, the sun will be due south at midday. Both UVA and UVB cause skin damage (sunburn, premature aging, skin cancer). Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. Bruce McClure served as lead writer for EarthSky's popular Tonight pages from 2004 to 2021, when he opted for a much-deserved retirement. Or, we'll take care of driving your Casey container to your new home or business. On midsummers day in the northern hemisphere, around June 21st each year (the summer solstice), the North Pole is tilted as much as it ever will be towards the sun. So, theres no need to brave the chilly winters of Dallas. The children had shouted, Water-lovers may already be aware of a podcast called What is Water?, presented by Nancy Smith. Now, Austin : Sun direction, Austin sun orientation, most sunny orientation, dawn sunrise sunset dusk in Austin. Source: The Changing Angle of the Sun can Create More Shade During Winter if there are Trees and Structures on the South Side of the Garden (Diagram Courtesy DOE). Thank you! Polk Center for Academically Talented and Gifted, Lenore Kirk Hall Personalized Learning Academy at Oak Cliff, Leonides Gonzalez Cigarroa M.D. We deliver your empty moving and storage container to your residence or place of business. What about mid-afternoon in December? Holidify Travels Pvt Ltd.- All Right Reserved, Share this post on social media For But two weeks later, on April 4, the sun rises and sets about 14 degrees north of due east and west. All The Space You Need So, at this far-northern latitude, the sun moves about one degree (2 sun-diameters) along the horizon daily during this two-week period from the spring equinox to April 4. When it comes to sunset, the Poles are still tilted the same way as in the morning and so in midsummer the sun sets close to northwest, and in midwinter it sets close to southwest. I taught a gardening class at my place, and we all stood in one of the gardens, and I showed exactly where the sun rises and sets on the winter solstice, the equinox, and the summer solstice. You can measure this remarkable shift of sunlight by standing in your garden today and memorizing the exact points on the horizon where the sun rises and sets. However, trees, fences, houses and other structures around your vegetable garden can get in the way of the light. Sunset Criminal Justice Collegiate Academy, PowerSchool: How to Create a Parent Portal Account, Subscribe to RSS Feed - Campus News and Announcements, Alex W. Spence MS & Talented/Gifted Academy, Barack Obama Male Leadership Academy at A. Maceo Smith, Barbara M. Manns High School and Middle School DAEP/Elementary DAEP, Benjamin Franklin International Exploratory Academy, Biomedical Preparatory at UT Southwestern, Booker T. Washington High School for the Performing and Visual Arts, Bryan Adams High School Leadership Academy, Celestino Mauricio Soto Jr.
By marking the end of a sticks shadow tips over the course of the middle part of the day and joining them, a curve is made. The difference between sunrise directions in midsummer and midwinter is a whopping 90 degrees! Elementary School, Lincoln High School and Humanities/Communications Magnet, Mark Twain School for the Talented & Gifted, Marvin E. Robinson School of Business and Management at Yvonne A. Ewell Townview, Personalized Learning Academy at Highland Meadows, Personalized Learning Preparatory at Sam Houston, Raul Quintanilla Sr. Middle School STEAM Academy, Rosemont Lower Chris V. Semos Building and Upper School, Rosie M. Collins Sorrells School of Education and Social Services at Yvonne A. Ewell Townv, School for the Talented and Gifted at Yvonne A. Ewell Townview Center, School for the Talented and Gifted in Pleasant Grove, School of Health Professions at Yvonne A. Ewell Townview Center, School of Science and Engineering at Yvonne A. Ewell Townview Center, Sudie L. Williams Talented and Gifted Academy, Thelma Elizabeth Page Richardson Elementary School, Thomas L. Marsalis Elementary STEAM Academy, West Dallas STEM School Program at Pinkston, William B. Travis Academy/Vanguard for the Academically Talented and Gifted, Young Mens Leadership Academy at Fred F. Florence Middle School, Young Womens STEAM Academy at Balch Springs Middle School, Leonides Gonzalez Cigarroa, M.D. Beautiful photos. This means that in the middle of a UK summer, when the North Pole is tilted towards the sun, the sun will rise north of east, and we are not talking about a couple of degrees. We are renowned for our unparalleled commitment to education, tradition and strong parent and community support. Latest News: The new online course The Beginners Guide to Natural Navigation includes a video tutorial on how to use the sun to navigate. The sun rises at the east and sets in the west only TWICE a year during the Spring and Fall equinoxes. The next stage in using the sun to find your way is being confident which direction the sun will be at midday. It can be refined by coming to know the science and maths of the angles better or through hundreds of hours of practice, as ancient and modern land and sea navigators have learned to do since mans first serious journeys. Time is adjusted for. Thats where the word solstice comes from. Solstice = sun still. The greater your latitude and the closer you are to one of the solstices, the further from east and west the sun rises and sets. In South Texas, we get plenty of sunshinemore than enough, even in winter, to grow a lush and vibrant garden. Lets look at some examples. Currency Exchange in Dallas: Top 6 Currency Exchange Outlets in Dallas and More! Time and Date AS 19952022. One hour after sunrise in May? Early College High School at El Centro Campus, Esperanza Hope Medrano Elementary School, Felix G. Botello Personalized Learning Elementary School, Francisco Pancho Medrano Junior High School, Franklin D. Roosevelt High School of Innovation, George Bannerman Dealey Montessori Academy, George Herbert Walker Bush Elementary School, Henry B. Gonzalez Personalized Learning Academy, Henry W. Longfellow Career Exploration Academy, Innovation, Design, Entrepreneurship Academy at James W. Fannin, Irma Lerma Rangel Young Womens Leadership School, J.P. Starks Math, Science and Technology Vanguard, Jill Stone Elementary School at Vickery Meadow, John Lewis Social Justice Academy at Oliver Wendell Holmes, K.B. Aphelion was on July 4, 2022 at 2:10 am in Dallas. I face north, so in summer I have to protect plants from the afternoon scorching, and in winter everyone has to be scooted out to the opposite corner to get a little extra light. For natural navigation purposes, midday is the moment that the sun is highest in the sky, not what your watch says. Contact US : Something went wrong while submitting the form. I suppose the one point of real connection between my work and that of the farmer is the light. Just give us a ring at (209) 531-9010 for more info. Check out today's and tomorrow's sunrise and sunset times in Dallas, Texas, United States, as well as the whole calendar for July 2022.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'sunrise_sunset_org-box-3','ezslot_1',116,'0','0'])};if(typeof __ez_fad_position!='undefined'){__ez_fad_position('div-gpt-ad-sunrise_sunset_org-box-3-0')}; July 22, 2022. He said the autumn light added a certain richness, and even sadness, to his movies. UVB is responsible for delayed tanning and burning. Gorgeous Boutique Hotels in Dallas for a Blissful Stay, Plan your trip with experts and get best offers. Then, through the summer, the sun moves a full 23.5 degrees north of its line at the equinox. The sun goes down by 7:30 PM, so make sure to head to a botanical garden - Dallas Arboretum and Botanical Garden for the autumnal equinox. sales@caseyportablestorage.com. Thomas Jefferson saidthat under the constant, beaming, almost vertical sun of Virginia, shade is our Elysium. And Virginia has nothing compared to theburningheat of aSouth Texas summer sun. Heres my selection following a short visit to friends in the Tarn region of southern France.
Thank you so much for your interesting perspective! The sun will be close to southeast. Our containers allow you to do your move at your own pace making do-it-yourself moving easy and stress free. Your submission has been received! Sun and sun beds: inducers of vitamin D and skin cancer. The further from the equator you are, the further from East and West the sun will rise and set in June and December. Enjoy spring days by exploring bluebonnets that start appearing only by late February and goes until late April near the surrounding areas of Dallas. Sunrise and sunset times, civil twilight start and end times as well as solar noon, and day length for every day of July in Dallas. Exposure to UVB radiation helps the skin produce vitamin D (D3). Submit a composite image of the suns shift between now and the June solstice to EarthSky. No one could believe how much the sun changed positions! Reunion Tower He said the quality of the light in the fall is uniquely rich, soft, and poignant. The garden we were standing in is a great summer garden, but a terrible winter garden, because of how the angle of sun changes and creates shade. He also wrote and hosted public astronomy programs and planetarium programs in and around his home in upstate New York. Then, do the same thing on the spring equinox and once again during the summer solstice. No grid of streets to help you? Hiking in Dallas: The Go-to Guide for Hiking Trails in Dallas, Music of Dallas : 15 Live Music Venues and Festivals of Dallas You Must Know, Yoga in Dallas - 10 Renowned Yoga Studios in the City, 24 Best Coffee Shops and Coffee Roasters in Dallas. Change), You are commenting using your Twitter account. Your details are safe with us. In Dallas, Texas, the first day of July is 14 hours, 19 minutes long. Try tracking the suns progress along the horizon by placing bits of tape on an east- or west-facing window of your home. CICARMA, Emanuela, et al. At mid-northern latitudes, theres a two- to three-week time period where you probably wont discern any movement of the sun along the horizon. The last day of the month is 13 hours, 48 minutes, so the length of the days gets 30 minutes shorter in July 2022. Copyright 2002-2022 Blackboard, Inc. All rights reserved. Understanding why is one of the keys to using the sun to find your way at the start and end of the day.
document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Enter your email address to subscribe to this blog and receive notifications of new posts by email. A Winter Sunrise (photograph courtesy Al Past, author of Distant Cousin and other novels). Oops! What direction will the sun be in the middle of the morning in the UK in March? (LogOut/ San Joaquin County. Like half its width? This is important because this is the moment that the sun has stopped rising, ie. The closest point on this curve to the stick will be a perfect north/south line. Bottom line: The amount of the suns movement along your horizon at sunrise or sunset varies with the time of year and with your latitude. It will be close to northeast in Britain in late June.
He wrote: Hello, Im curious to know how far the sun moves north or south along the horizon each day? During the rest of the days throughout the year, the Sun rises in the north or south of 'due east' and sets in the north or south of 'due west'. The pictures youd capture here are unlike any! Or just find a clear spot a place where you can see the horizon and stand in the same spot whenever you watch the sunrise or sunset. You can display here the sun direction and the sunny hours in Austin (United states. UVA is responsible for the immediate tanning effect. Adding fertilizer and pesticide will not help a garden that doesnt get enough sun. The Earth was farthest from the Sun at this time. The sun, over the course of the year, travels through different paths in the sky. Its most perceptible around the equinoxes and least so around the solstices. It arrives at 15:33 UTC on March 20. It will be due south at midday in the UK, as the UK is north of the Tropic of Cancer. Wavelengths: UVA =360 nm, UVB =300 nm.
The movement of the sun from the winter to the summer solstice represents a full 47 degrees of change each year. Factors influencing vitamin D status. The tip of the shortest shadow cast by a stick during the course of a day, or any other object like a tree, will point north in the UK, the base of the stick will point south. With practice this method can be used anywhere in the world, although it is not very practical in the tropics near the middle of the day as the sun is too high. CICARMA, Emanuela, et al. it is no longer east of you, and before it starts setting and heads west of you. Facebook Easy Access. Wells Academy, Dr. Frederick D. Haynes, III Global Preparatory Academy at Paul Quinn College, Dr. Frederick Douglass Todd Sr. Middle School, Dr. Wright L. Lassiter Jr. The suns movement from day to day along your horizon at the sunrise or sunset point is most noticeable around the equinoxes.
So, make sure to get your late lunch fix and head to any of the parks, for example, Klyde Warren Park to watch mauve and gold hues reflected on the city skyline caused by sunset. We never post anything without your permission. The sun rises due east on only two days of the year, the equinoxes, near March 21 and September 22 each year. Casey Portable Storage three areas in the Central Valley with warehouses located in Stockton, Modesto and Atwater, CA. Not only do we provide do-it-yourself solutions, we also offer full service moving and storage services.
2120 W. Jefferson Blvd., Dallas, TX 75208. Anywhere in the world that is north of the Tropic of Cancer, and that includes all of Europe and the US, the sun will be due south at midday. Both UVA and UVB cause skin damage (sunburn, premature aging, skin cancer). Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. Bruce McClure served as lead writer for EarthSky's popular Tonight pages from 2004 to 2021, when he opted for a much-deserved retirement. Or, we'll take care of driving your Casey container to your new home or business. On midsummers day in the northern hemisphere, around June 21st each year (the summer solstice), the North Pole is tilted as much as it ever will be towards the sun. So, theres no need to brave the chilly winters of Dallas. The children had shouted, Water-lovers may already be aware of a podcast called What is Water?, presented by Nancy Smith. Now, Austin : Sun direction, Austin sun orientation, most sunny orientation, dawn sunrise sunset dusk in Austin. Source: The Changing Angle of the Sun can Create More Shade During Winter if there are Trees and Structures on the South Side of the Garden (Diagram Courtesy DOE). Thank you! Polk Center for Academically Talented and Gifted, Lenore Kirk Hall Personalized Learning Academy at Oak Cliff, Leonides Gonzalez Cigarroa M.D. We deliver your empty moving and storage container to your residence or place of business. What about mid-afternoon in December? Holidify Travels Pvt Ltd.- All Right Reserved, Share this post on social media For But two weeks later, on April 4, the sun rises and sets about 14 degrees north of due east and west. All The Space You Need So, at this far-northern latitude, the sun moves about one degree (2 sun-diameters) along the horizon daily during this two-week period from the spring equinox to April 4. When it comes to sunset, the Poles are still tilted the same way as in the morning and so in midsummer the sun sets close to northwest, and in midwinter it sets close to southwest. I taught a gardening class at my place, and we all stood in one of the gardens, and I showed exactly where the sun rises and sets on the winter solstice, the equinox, and the summer solstice. You can measure this remarkable shift of sunlight by standing in your garden today and memorizing the exact points on the horizon where the sun rises and sets. However, trees, fences, houses and other structures around your vegetable garden can get in the way of the light. Sunset Criminal Justice Collegiate Academy, PowerSchool: How to Create a Parent Portal Account, Subscribe to RSS Feed - Campus News and Announcements, Alex W. Spence MS & Talented/Gifted Academy, Barack Obama Male Leadership Academy at A. Maceo Smith, Barbara M. Manns High School and Middle School DAEP/Elementary DAEP, Benjamin Franklin International Exploratory Academy, Biomedical Preparatory at UT Southwestern, Booker T. Washington High School for the Performing and Visual Arts, Bryan Adams High School Leadership Academy, Celestino Mauricio Soto Jr.
By marking the end of a sticks shadow tips over the course of the middle part of the day and joining them, a curve is made. The difference between sunrise directions in midsummer and midwinter is a whopping 90 degrees! Elementary School, Lincoln High School and Humanities/Communications Magnet, Mark Twain School for the Talented & Gifted, Marvin E. Robinson School of Business and Management at Yvonne A. Ewell Townview, Personalized Learning Academy at Highland Meadows, Personalized Learning Preparatory at Sam Houston, Raul Quintanilla Sr. Middle School STEAM Academy, Rosemont Lower Chris V. Semos Building and Upper School, Rosie M. Collins Sorrells School of Education and Social Services at Yvonne A. Ewell Townv, School for the Talented and Gifted at Yvonne A. Ewell Townview Center, School for the Talented and Gifted in Pleasant Grove, School of Health Professions at Yvonne A. Ewell Townview Center, School of Science and Engineering at Yvonne A. Ewell Townview Center, Sudie L. Williams Talented and Gifted Academy, Thelma Elizabeth Page Richardson Elementary School, Thomas L. Marsalis Elementary STEAM Academy, West Dallas STEM School Program at Pinkston, William B. Travis Academy/Vanguard for the Academically Talented and Gifted, Young Mens Leadership Academy at Fred F. Florence Middle School, Young Womens STEAM Academy at Balch Springs Middle School, Leonides Gonzalez Cigarroa, M.D. Beautiful photos. This means that in the middle of a UK summer, when the North Pole is tilted towards the sun, the sun will rise north of east, and we are not talking about a couple of degrees. We are renowned for our unparalleled commitment to education, tradition and strong parent and community support. Latest News: The new online course The Beginners Guide to Natural Navigation includes a video tutorial on how to use the sun to navigate. The sun rises at the east and sets in the west only TWICE a year during the Spring and Fall equinoxes. The next stage in using the sun to find your way is being confident which direction the sun will be at midday. It can be refined by coming to know the science and maths of the angles better or through hundreds of hours of practice, as ancient and modern land and sea navigators have learned to do since mans first serious journeys. Time is adjusted for. Thats where the word solstice comes from. Solstice = sun still. The greater your latitude and the closer you are to one of the solstices, the further from east and west the sun rises and sets. In South Texas, we get plenty of sunshinemore than enough, even in winter, to grow a lush and vibrant garden. Lets look at some examples. Currency Exchange in Dallas: Top 6 Currency Exchange Outlets in Dallas and More! Time and Date AS 19952022. One hour after sunrise in May? Early College High School at El Centro Campus, Esperanza Hope Medrano Elementary School, Felix G. Botello Personalized Learning Elementary School, Francisco Pancho Medrano Junior High School, Franklin D. Roosevelt High School of Innovation, George Bannerman Dealey Montessori Academy, George Herbert Walker Bush Elementary School, Henry B. Gonzalez Personalized Learning Academy, Henry W. Longfellow Career Exploration Academy, Innovation, Design, Entrepreneurship Academy at James W. Fannin, Irma Lerma Rangel Young Womens Leadership School, J.P. Starks Math, Science and Technology Vanguard, Jill Stone Elementary School at Vickery Meadow, John Lewis Social Justice Academy at Oliver Wendell Holmes, K.B. Aphelion was on July 4, 2022 at 2:10 am in Dallas. I face north, so in summer I have to protect plants from the afternoon scorching, and in winter everyone has to be scooted out to the opposite corner to get a little extra light. For natural navigation purposes, midday is the moment that the sun is highest in the sky, not what your watch says. Contact US : Something went wrong while submitting the form. I suppose the one point of real connection between my work and that of the farmer is the light. Just give us a ring at (209) 531-9010 for more info. Check out today's and tomorrow's sunrise and sunset times in Dallas, Texas, United States, as well as the whole calendar for July 2022.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'sunrise_sunset_org-box-3','ezslot_1',116,'0','0'])};if(typeof __ez_fad_position!='undefined'){__ez_fad_position('div-gpt-ad-sunrise_sunset_org-box-3-0')}; July 22, 2022. He said the autumn light added a certain richness, and even sadness, to his movies. UVB is responsible for delayed tanning and burning. Gorgeous Boutique Hotels in Dallas for a Blissful Stay, Plan your trip with experts and get best offers. Then, through the summer, the sun moves a full 23.5 degrees north of its line at the equinox. The sun goes down by 7:30 PM, so make sure to head to a botanical garden - Dallas Arboretum and Botanical Garden for the autumnal equinox. sales@caseyportablestorage.com. Thomas Jefferson saidthat under the constant, beaming, almost vertical sun of Virginia, shade is our Elysium. And Virginia has nothing compared to theburningheat of aSouth Texas summer sun. Heres my selection following a short visit to friends in the Tarn region of southern France.
Thank you so much for your interesting perspective! The sun will be close to southeast. Our containers allow you to do your move at your own pace making do-it-yourself moving easy and stress free. Your submission has been received! Sun and sun beds: inducers of vitamin D and skin cancer. The further from the equator you are, the further from East and West the sun will rise and set in June and December. Enjoy spring days by exploring bluebonnets that start appearing only by late February and goes until late April near the surrounding areas of Dallas. Sunrise and sunset times, civil twilight start and end times as well as solar noon, and day length for every day of July in Dallas. Exposure to UVB radiation helps the skin produce vitamin D (D3). Submit a composite image of the suns shift between now and the June solstice to EarthSky. No one could believe how much the sun changed positions! Reunion Tower He said the quality of the light in the fall is uniquely rich, soft, and poignant. The garden we were standing in is a great summer garden, but a terrible winter garden, because of how the angle of sun changes and creates shade. He also wrote and hosted public astronomy programs and planetarium programs in and around his home in upstate New York. Then, do the same thing on the spring equinox and once again during the summer solstice. No grid of streets to help you? Hiking in Dallas: The Go-to Guide for Hiking Trails in Dallas, Music of Dallas : 15 Live Music Venues and Festivals of Dallas You Must Know, Yoga in Dallas - 10 Renowned Yoga Studios in the City, 24 Best Coffee Shops and Coffee Roasters in Dallas. Change), You are commenting using your Twitter account. Your details are safe with us. In Dallas, Texas, the first day of July is 14 hours, 19 minutes long. Try tracking the suns progress along the horizon by placing bits of tape on an east- or west-facing window of your home. CICARMA, Emanuela, et al. At mid-northern latitudes, theres a two- to three-week time period where you probably wont discern any movement of the sun along the horizon. The last day of the month is 13 hours, 48 minutes, so the length of the days gets 30 minutes shorter in July 2022. Copyright 2002-2022 Blackboard, Inc. All rights reserved. Understanding why is one of the keys to using the sun to find your way at the start and end of the day.