WB Chapter 1 - Galaxies III - Structure

The structures of different galaxies can vary in size and detail, so in this article we are just going to discuss the different locations in spiral type galaxies

Spiral galaxies consist of four distinct components:

• A flat, rotating disc of (mostly newly created) stars and interstellar matter
• A central stellar bulge of mainly older stars, which resembles an elliptical galaxy
• A near-spherical halo of stars, including many in globular clusters
• A supermassive black hole at the very center of the central bulge

Word Builder Guide Index

This is an index for my World Building Guide they will be arranged in order for easy access.

Finally got the book

I finally obtained my new book yesterday before I had to leave for TAFE.

The contents are pretty strong with great scientific explanations but lacking in quantity. here is only 2 pages on galaxies and it only explains the basic types. Either way it is going to be a great resource in time to come using some of the great content.

New book on the way

 I have ordered a new book. The shipping isn't cheap either and I don't want it in a month so I found another vendor just one suburb away but they order from overseas in out of stock print, so next month I will give a small review of what I think of the book. I got myself the science fiction world building guide by Stephen L Gillet. I am hoping that it will give me some very insightful ideas and help me behind the scenes. On the other hand I got some role playing books on world building also, they may not be the best (except for Gurps Space 4e) but they were given to me by an ex player/GM who felt that you can be too old to have an imagination anyway that doesn't matter.

WB Chapter 1 - Galaxies Step1 Classification

Step 1:
To determine the type of Galaxy you will eventually end up in roll on 1d100

1-12 - Galaxy is of Irregular shape. You will find very little amount of planets orbiting stars in this type.

13-28 - Galaxy is of Elliptical type. Very few planets orbit stars and the stars found here are older (Population II) than other types so add an age modifier to the system of +5

29-94 - You rolled a Spiral Galaxy. Because Spiral Galaxies are the main focus of this guide they will be more complicated than the other types but you can still use the other types for your planet just make sure to take notes on the different properties.

95-100 - NONE. This type isn't really a type a system can be rogue and not have any Galaxy to belong to. It may still be in a Globular Cluster or any other formation, maybe even none. These setups tend to be very unstable and generally after some time being rogue the system will fall apart and will be unable to support planets. It is Dim and very cold in these systems.

WB Chapter 1 - Galaxies II - The Different Types

Galaxy classification is a system used by astronomers to divide galaxies into groups based on their visual appearance. There are several schemes in use by which galaxies can be classified according to their morphologies, the most famous being the Hubble sequence, devised by Edwin Hubble. I will be using this system in my explanations.

Galaxy Picture

 I haven't made a post in a while but that's life.

So anyway I have not given up I just need to make some adjustments and hopefully I will get a little bit more enthusiastic about my creation.

So for your enjoying pleasure I would like to produce a photoshop creation of mine.

A Spiral Galaxy (of course the colors are very dramatised)