Chicago, IL Sunrise and Sunset Times (2024)

FAQs

How do you solve sunrise and sunset? ›

Sunrise/Sunset Calculations

where the positive number corresponds to sunrise, negative to sunset. Then the UTC time of sunrise (or sunset) in minutes is: sunrise = 720 – 4*(longitude + ha) – eqtime where longitude and hour angle are in degrees and the equation of time is in minutes.

The Equinoxes (Vernal & Autumnal)

There are only two times of the year when the Earth's axis is tilted neither toward nor away from the sun, resulting in a "nearly" equal amount of daylight and darkness at all latitudes. These events are referred to as Equinoxes.

It is actually the motion of Earth spinning that gives us the illusion that everything in the sky is moving around us once a day. Earth rotates in an eastward direction once every 24 hours, producing sunrises and sunsets and the apparent westward movement of the objects across the sky.

At that time, the Chicago area will see its longest day of the year, with approximately 15 hours, 13 minutes and 41 seconds of daylight -- the most we'll see on a single day this year, according to timeanddate.com.

Arguably the single most important weather factor in predicting amazing sunrises and sunsets is the clouds. The type of clouds in the sky, the thickness of the cloud cover, and the height of the clouds all play very important factors in creating a great sunrise or sunset.

The town of Longyearbyen in Svalbard, Norway, is another place where the sun never rises during winter due to its position within the Arctic Circle. Lastly, in Antarctica, several research stations experience polar nights, with some regions having no daylight for months at a time.

Due to the continuous refraction of light rays at each layer, it follows a curved path and reaches the eye of the observer. As a result, we can see the sun for 2 minutes before it rises above the horizon in the morning.

The summer solstice is an astronomical event that marks the longest day of the year and the start of summer in the Northern Hemisphere. It nearly always falls on June 21, but can also fall on June 20 or June 22 depending on the year and time zone you are in.

Sunrise and sunset times constantly fluctuate during the year due in part to Earth's tilt and the changing of the clocks for daylight saving time. Sunrise officially begins when our giant star starts to appear above the horizon, marking the end of twilight.

Sunrises, sunsets, and the changing position of the Sun in the sky are some of the everyday reminders that Earth is in constant motion. Earth's daily rotation and annual orbital cycle around the Sun affect the changing position of the Sun in the sky every day.

What are the reasons for sunrise and sunset? ›

Here's what scientists say about "sunrise" and "sunset": The sun stays in its position at the center of our solar system. It doesn't rise and set. But it appears to rise and set because of the Earth's rotation on its axis.

Chicago is a fantastic city for a long vacation. It's an expansive urban setting, with many diverse neighborhoods that all have unique offerings in the way of sightseeing and attractions.

Even as the sun starts to set later — and by later, we mean 4:28 p.m. — the days will get shorter until Dec. 21. That day will have nine hours and 11 minutes of sunlight, making it the city's “shortest day” of the year.

Heatwave 2023 is one for the record books. On Thursday, Chicago notched its first official 100-degree day since 2012 and tied a daily high set nearly 80 years ago, according to the National Weather Service.

Conventionally speaking, sunrise and sunset are defined as the moment when the top of the Sun's disk is on the horizon. If we lived on an airless body, we could calculate when this moment happens with simple geometry and call it a day. But light doesn't travel from our star to our eye in a straight line.

The mean solar time has been 1 Page 2 2 M. Müller fixed in such a way that it does not deviate too much from the apparent solar time. The deviations between apparent solar time and mean solar time are described by the equation of time equation of time = (apparent solar time) − (mean solar time).

S = ST - LONG + 1.0027379 * (LST + ZONE - C). Given the local sidereal time, the right ascension and declination of the sun, and the local latitude, then the local azimuth and elevation of the sun can be determined from spherical trigonometry.