The northern celestial hemisphere, also called the Northern Sky, is the northern half of the celestial sphere; that is, it lies north of the celestial equator. This arbitrary sphere appears to rotate westward around a polar axis due to Earth's rotation. At any given time, the entire Northern Sky is visible from the geographic North Pole, while less of the hemisphere is visible the further south the observer is located. The southern counterpart is the southern celestial hemisphere. (Wikipedia).
Teach Astronomy - Star Motions
http://www.teachastronomy.com/ The apparent motions of the stars in the night sky depend on your position on the Earth's surface. At a northern temperate latitude, the stars rise in the east and set in the west, and they travel on slanting paths across the sky. The north celestial pole s
From playlist 02. Ancient Astronomy and Celestial Phenomena
Teach Astronomy - Celestial Sphere
http://www.teachastronomy.com/ The celestial sphere is an imaginary sphere surrounding the Earth onto which are projected the objects of the night sky. There are several fixed points on the celestial sphere that are important. The Zenith is the point directly over your head. The Nadir i
From playlist 02. Ancient Astronomy and Celestial Phenomena
Teach Astronomy - Solstices and Equinoxes
http://www.teachastronomy.com/ At the summer solstice in the northern hemisphere, the northern pole of the Earth is tilted as much towards the Sun as it can. The Sun is overhead at noon at the Tropic of Cancer, the Sun never sets north of the Arctic Circle, and the Sun never rises south o
From playlist 02. Ancient Astronomy and Celestial Phenomena
Astronomy - Ch. 12: Mars (16 of 25) The Polar Caps
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn about Mars polar ice caps. The Northern Polar Cap have milder winters compared to the Southern Ice Caps because it's wi
From playlist ASTRONOMY 12 MARS
http://www.teachastronomy.com/ The patterns and motions of the stars in the night sky can be used for navigation. In the Northern Hemisphere the stars all appear to move about a fixed point in the sky called the Northern Celestial Pole. There happens to be a fairly bright star in this di
From playlist 02. Ancient Astronomy and Celestial Phenomena
Astronomy - Ch. 2: Understanding the Night Sky (8 of 23) Understanding Celestial Coordinates
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the coordinates of the celestial sphere.
From playlist ASTRONOMY 2 THE NIGHT SKY
Astronomy 101: Motion of the Celestial Sphere
Skynet University: http://skynet.unc.edu/introastro Use Our Telescopes From Anywhere! Astronomy 101: The Solar System Lesson 1: Celestial Motions Topic: Motion of the Celestial Sphere Next: Sun-Earth-Moon Scale Model (http://youtu.be/ksLErDRXFi8) Previous: Constellations and the Cel
From playlist UNC: Astronomy 101 by Skynet University | CosmoLearning.org Astronomy
Annual Motion | History and Philosophy of Astronomy 1.05
Learn about the history and philosophy of astronomy from Professor Impey, a University Distinguished Professor of Astronomy at the University of Arizona, with our Knowing the Universe: History and Philosophy of Astronomy course here on YouTube. This video is part of module 1, Ancient Skies
From playlist History and Philosophy Course Module 1: Ancient Skies
Daily Motion | History and Philosophy of Astronomy 1.04
Learn about the history and philosophy of astronomy from Professor Impey, a University Distinguished Professor of Astronomy at the University of Arizona, with our Knowing the Universe: History and Philosophy of Astronomy course here on YouTube. This video is part of module 1, Ancient Skies
From playlist History and Philosophy Course Module 1: Ancient Skies
Star Paths: The Magic Of Observational Astronomy (Part 1)
Credit to: Veena Srinivasan (Animation and Graphics) See Part 2: https://www.youtube.com/watch?v=BuQMhBjN5AI Correction: At 12:13 I meant to say simply "zenith angle" and "azimuth angle" rather than "solar zenith angle" and "solar azimuth angle" ; the latter terms would refer solely to the
From playlist Summer of Math Exposition Youtube Videos
Annual Motion | Introductory Astronomy Course 2.03
Welcome to Astronomy: Exploring Time and Space, a course from Professor Impey, a University Distinguished Professor of Astronomy at the University of Arizona. Learn about the foundations of astronomy in this free online course here on YouTube. This video is part of module 2, Annual Motion.
From playlist Introductory Astronomy Module 2: Night Sky
History of Astronomy Part 1: The Celestial Sphere and Early Observations
Now that we've learned about how the universe began, as well as the development of the Milky Way galaxy, the solar system, and the Earth, it's time to learn about the human beings that came to inhabit the Earth. Eventually, they began to look at the sky and wonder about what they were seei
From playlist Astronomy/Astrophysics
What Causes The Northern Lights?
Have you ever seen the beautiful auroral displays in the high latitudes? These are the Northern and Southern Lights. But what dark physics wizardry is going on to make this happen? Support us at: http://www.patreon.com/universetoday More stories at: http://www.universetoday.com/ Follow us
From playlist Guide to Space
Astronomy - Ch. 2: Understanding the Night Sky (7 of 23) Understanding Earth's Longitude & Latitude
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the Earth's longitude and latitude.
From playlist ASTRONOMY 2 THE NIGHT SKY
Calendars | History and Philosophy of Astronomy 1.03
Learn about the history and philosophy of astronomy from Professor Impey, a University Distinguished Professor of Astronomy at the University of Arizona, with our Knowing the Universe: History and Philosophy of Astronomy course here on YouTube. This video is part of module 1, Ancient Skies
From playlist History and Philosophy Course Module 1: Ancient Skies
For many centuries, maps of the southern sky showed extensive blank areas -- the Terra Incognita of the heavens. The year 1595: For the first time, Dutch traders set sail to the East Indies. At night, navigators Pieter Keyser and Frederik de Houtman measured the positions of more than 130
From playlist The Solar System
Why Is There So Much Land In The North?
Watch the new season of MinuteBody - and get access to both CuriosityStream and Nebula - at https://curiositystream.com/minuteearth Most of Earth’s land is currently in the northern hemisphere because we happen to exist in a time where uneven heating in the mantle has pushed many continent
From playlist Earth History
Astronomy - Ch. 2: Understanding the Night Sky (5 of 23) Understanding the Celestial Sphere
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain what is the celestial sphere (a sort of GPS of the universe).
From playlist ASTRONOMY 2 THE NIGHT SKY