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Chapter I
Basics of practical astronomy (with the introduction)
1
Introduction to astronomy. The daily motion of the sky
Lessons 1–3
2
The celestial sphere and the ecliptic
Lessons 4–5
3
Celestial coordinates, maps and magnitudes
Lessons 6–8
4
Height of the pole and the sky at different latitudes
Lessons 9–10
5
Culmination and finding latitude
Lessons 11–12
6
Measuring time and calendars
Lessons 13–14
7
The Moon, calendars and eclipses
Lessons 15–17
Chapter II
Structure of the Solar System and motion of celestial bodies
8
Views of the world’s structure. Scale of the Solar System
Lessons 18–19
9
Planetary configurations and periods
Lessons 20–21
10
Parallax and the sizes of bodies
Lessons 22–23
11
Astronomical units and Kepler’s laws
Lessons 24–25
12
Calculating masses and cosmic velocities
Lessons 26–27
Chapter III
Astrophysics and its research methods
13
Electromagnetic radiation and optical telescopes
Lessons 28–29
14
Telescope characteristics and radio astronomy
Lessons 30–31
15
Ulugh Beg’s observatory and radiation laws
Lessons 32–33
Chapter IV
The physical nature of Solar System bodies
16
The Sun and its photosphere
Lessons 34–35
17
The solar atmosphere and the source of its energy
Lessons 36–37
18
Solar activity and the inner planets
Lessons 38–39
19
The Earth, Moon, Mars and the giant planets
Lessons 40–41
20
Asteroids, dwarf planets and comets
Lessons 42–43
21
Meteors and the origin of the Solar System
Lessons 44–45
Chapter V
Stars
22
Distances to stars and their sizes
Lessons 46–47
23
Star colour and absolute magnitude
Lessons 48–49
24
Stellar spectra and the Hertzsprung–Russell diagram
Lessons 50–51
25
Binary stars and their masses
Lessons 52–53
26
Variable stars and stellar evolution
Lessons 54–55
Chapter VI
Structure and evolution of the Universe
27
Our Galaxy and star clusters
Lessons 56–57
28
Nebulae and external galaxies
Lessons 58–59
29
Quasars, the expanding Universe and large-scale structure
Lessons 60–62
Part II
Elements of astronautics (introduction)
30
Elements of astronautics: history and rocket motion
Lessons 63–64
☰ Contents · Astronomy
Grade 11
›
Astronomy
›
Week 9
Planetary configurations and periods
Lessons 20–21 · 2 lessons · M. Mamadazimov. Astronomy Grade 11, 1st edition. DAVR NASHRIYOTI, Tashkent, 2018
Lesson 20
Lesson 21
Quiz
8
Homework
5
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Week 9 · Lesson 21: Orbital periods of the planets
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