<< Chapter < Page Chapter >> Page >

Coverage and scope

Astronomy was written, updated, and reviewed by a broad range of astronomers and astronomy educators in a strong community effort. It is designed to meet scope and sequence requirements of introductory astronomy courses nationwide.

  • Chapter 1: Science and the Universe: A Brief Tour
  • Chapter 2: Observing the Sky: The Birth of Astronomy
  • Chapter 3: Orbits and Gravity
  • Chapter 4: Earth, Moon, and Sky
  • Chapter 5: Radiation and Spectra
  • Chapter 6: Astronomical Instruments
  • Chapter 7: Other Worlds: An Introduction to the Solar System
  • Chapter 8: Earth as a Planet
  • Chapter 9: Cratered Worlds
  • Chapter 10: Earthlike Planets: Venus and Mars
  • Chapter 11: The Giant Planets
  • Chapter 12: Rings, Moons, and Pluto
  • Chapter 13: Comets and Asteroids: Debris of the Solar System
  • Chapter 14: Cosmic Samples and the Origin of the Solar System
  • Chapter 15: The Sun: A Garden-Variety Star
  • Chapter 16: The Sun: A Nuclear Powerhouse
  • Chapter 17: Analyzing Starlight
  • Chapter 18: The Stars: A Celestial Census
  • Chapter 19: Celestial Distances
  • Chapter 20: Between the Stars: Gas and Dust in Space
  • Chapter 21: The Birth of Stars and the Discovery of Planets outside the Solar System
  • Chapter 22: Stars from Adolescence to Old Age
  • Chapter 23: The Death of Stars
  • Chapter 24: Black Holes and Curved Spacetime
  • Chapter 25: The Milky Way Galaxy
  • Chapter 26: Galaxies
  • Chapter 27: Active Galaxies, Quasars, and Supermassive Black Holes
  • Chapter 28: The Evolution and Distribution of Galaxies
  • Chapter 29: The Big Bang
  • Chapter 30: Life in the Universe
  • Appendix A: How to Study for Your Introductory Astronomy Course
  • Appendix B: Astronomy Websites, Pictures, and Apps
  • Appendix C: Scientific Notation
  • Appendix D: Units Used in Science
  • Appendix E: Some Useful Constants for Astronomy
  • Appendix F: Physical and Orbital Data for the Planets
  • Appendix G: Selected Moons of the Planets
  • Appendix H: Upcoming Total Eclipses
  • Appendix I: The Nearest Stars, Brown Dwarfs, and White Dwarfs
  • Appendix J: The Brightest Twenty Stars
  • Appendix K: The Chemical Elements
  • Appendix L: The Constellations
  • Appendix M: Star Charts and Sky Event Resources

Currency and accuracy

Astronomy has information and images from the New Horizons exploration of Pluto, the discovery of gravitational waves, the Rosetta Mission to Comet C-G, and many other recent projects in astronomy. The discussion of exoplanets has been updated with recent information—indicating not just individual examples, but trends in what sorts of planets seem to be most common. Black holes receive their own chapter, and the role of supermassive black holes in active galaxies and galaxy evolution is clearly explained. Chapters have been reviewed by subject-matter experts for accuracy and currency.

Flexibility

Because there are many different ways to teach introductory astronomy, we have made the text as flexible as we could. Math examples are shown in separate sections throughout, so that you can leave out the math or require it as you deem best. Each section of a chapter treats a different aspect of the topic being covered; a number of sections could be omitted in shorter overview courses and can be included where you need more depth. And, as we have already discussed, you can customize the book in a variety of ways that have never been possible in traditional textbooks.

Questions & Answers

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




Source:  OpenStax, Astronomy. OpenStax CNX. Apr 12, 2017 Download for free at http://cnx.org/content/col11992/1.13
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Astronomy' conversation and receive update notifications?

Ask