Carina Nebula (HST)
Jupiter (Juno)
Vela supernova remnant (Stephen Chadwick)
Rhea in front of Titan (Cassini)
Ligeia Mare on Titan (Cassini)
Saturn's moon Epimetheus (Cassini)
Helix nebula in IR (Vista)
Titan and ring shadow (Cassini)
Carina Nebula in IR (HST)
Horsehead nebula (HST)
Sombrero galaxy (HST)
Eta Carinae (Stephen Chadwick)
Crater slope on Mars (MRO)
Earth and Moon from Saturn (Cassini)
Saturn closeup (Cassini)
Mars weather (MRO)
Saturn's moon Hyperion (Cassini)
Titan above Saturn's rings (Cassini)
Earth setting on Moon (Kaguya)
Occam crater on Ceres (Dawn)
Victoria crater on Mars (Erik Wernquist)
Jupiter (Juno)
Geysers on Enceladus (Cassini)
Andromeda galaxy (Robert Gendler)
Pluto mountains and plains (New Horizons)
Flyby Pluto (New Horizons)
Aurora on Saturn (Cassini)
Pluto topography (New Horizons)
Sunset on Mars (Spirit rover)
Jupiter and Ganymede (HST)
The Nile at night (ISS)
Neptune's moon Triton (Voyager 2)
Nightscape (Mark Gee)
Saturn's moon Enceladus (Cassini)

Our EBooks

are embedded on this website and do not require anything else than the browser that you are using right now. EBooks are ideally suited for self-study.

All our EBooks have a linked Table of Contents and prev and next buttons for easy page navigation.

We are planning to soon include self-tests in our EBooks to help you to check your progress.

Click on the icon in the column "Run" in the table below to open the EBook in a separate tab.

 Our EBooks

TitleDescriptionRun
Click on icon in column Run The EBook will open in a separate tab
The Rhythmic Sky 3.0 Explains how celestial objects move in the sky, and why. This is the EBook version of the much more extensive course in our Slides section.  
A Sense of Scale 3.0 Building a scale model of the Universe, is that possible?  
Matariki 3.2 The heliacal rising of the open star cluster Pleiades and how that relates to the New Year celebrations of the New Zealand Māori  
Falling in Space 2.1 A primer in Orbital mechanics; How to travel from A to B in space.  
Stellar Radiation 2.1 The importance of EM-radiation for astronomy, absorption and emission lines, spectroscopy, HR-diagram.  
Stellar Evolution 3.0 How stars are formed, spend most of their lifetime and how they "die" and mapping of these processes on the HR-diagram. How are the chemical elements formed.  
Stellar Distance 4.0
There is no single technique to measure distance in the Universe. Astronomers use the term Cosmic Distance Ladder. We are going to climb that ladder.  
Magnitude & Distance 3.0 How distance to celestial objects can be obtained from the object's luminosity or magnitude. We discuss flux; magnitude scale; distance modulus; standard candles.  
     

 

 

 

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