Nightscape (Mark Gee)
Horsehead nebula (HST)
Andromeda galaxy (Robert Gendler)
Earth and Moon from Saturn (Cassini)
Flyby Pluto (New Horizons)
Titan and ring shadow (Cassini)
Saturn's moon Hyperion (Cassini)
Eta Carinae (Stephen Chadwick)
Saturn's moon Epimetheus (Cassini)
Sombrero galaxy (HST)
Pluto topography (New Horizons)
Aurora on Saturn (Cassini)
Helix nebula in IR (Vista)
Geysers on Enceladus (Cassini)
Carina Nebula in IR (HST)
Occam crater on Ceres (Dawn)
Neptune's moon Triton (Voyager 2)
Vela supernova remnant (Stephen Chadwick)
Earth setting on Moon (Kaguya)
Pluto mountains and plains (New Horizons)
Mars weather (MRO)
Jupiter and Ganymede (HST)
Jupiter (Juno)
Crater slope on Mars (MRO)
Ligeia Mare on Titan (Cassini)
Saturn closeup (Cassini)
Saturn's moon Enceladus (Cassini)
The Nile at night (ISS)
Jupiter (Juno)
Victoria crater on Mars (Erik Wernquist)
Sunset on Mars (Spirit rover)
Rhea in front of Titan (Cassini)
Carina Nebula (HST)
Titan above Saturn's rings (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 3.0 The helical 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 3.0 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.  
     

 

 

 

Already Available

A Sense of Scale
The Rhythmic Sky
Matariki
Falling in Space
Stellar Radiation 2.1
Stellar Evolution 3.0
Magnitude & Distance 3.0
Stellar Distance 3.0

Soon to come

more later.

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