Astronomy and Cosmology week 1 - Thursday
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Transcript of Astronomy and Cosmology week 1 - Thursday
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Astronomy and Cosmologyweek 1 - Thursday
• Star Date
• Your surveys – results and discussion
• Your Web-X posts
• Your minilecture sign-ups… BREAK
• Introduction to space and time
• Workshop: Planispheres + Starry Night• Workshop: Space and Time (go outside if clear)
• Tomorrow and next week
![Page 2: Astronomy and Cosmology week 1 - Thursday](https://reader033.fdocuments.in/reader033/viewer/2022051416/56812c59550346895d90e29d/html5/thumbnails/2.jpg)
Introduction to Space and Time
Naked eye astronomy ConstellationsTime: Sky changes (Starry Night)• Through the day, due to Earth’s rotation• Through the year, due to Earth’s orbit• Through the seasons, due to Earth’s tilt• Through the epochs, due to precessionSpace• celestial sphere• Equinoxes, solstices
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Naked eye astronomy
What you see depends on where you are, in space, time and culture.
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Constellations help orient us
![Page 5: Astronomy and Cosmology week 1 - Thursday](https://reader033.fdocuments.in/reader033/viewer/2022051416/56812c59550346895d90e29d/html5/thumbnails/5.jpg)
Time: Sky changes (Starry Night)
• Through the day, due to Earth’s rotation
• Through the year, due to Earth’s orbit
• Through the seasons, due to Earth’s tilt
• Through the epochs, due to precession
![Page 6: Astronomy and Cosmology week 1 - Thursday](https://reader033.fdocuments.in/reader033/viewer/2022051416/56812c59550346895d90e29d/html5/thumbnails/6.jpg)
Sky changes through the day, due to Earth’s rotation
![Page 7: Astronomy and Cosmology week 1 - Thursday](https://reader033.fdocuments.in/reader033/viewer/2022051416/56812c59550346895d90e29d/html5/thumbnails/7.jpg)
Sky changes through the year, due to Earth’s orbit
![Page 8: Astronomy and Cosmology week 1 - Thursday](https://reader033.fdocuments.in/reader033/viewer/2022051416/56812c59550346895d90e29d/html5/thumbnails/8.jpg)
Sky changes through the seasons, due to Earth’s tilt
![Page 9: Astronomy and Cosmology week 1 - Thursday](https://reader033.fdocuments.in/reader033/viewer/2022051416/56812c59550346895d90e29d/html5/thumbnails/9.jpg)
Sky changes through the epochs, due to precession
![Page 10: Astronomy and Cosmology week 1 - Thursday](https://reader033.fdocuments.in/reader033/viewer/2022051416/56812c59550346895d90e29d/html5/thumbnails/10.jpg)
Celestial sphere
Altitude from horizon Declination from equator (latitude)
Azimuth from North RA from VE (longitude)
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Equinoxes and solstices