Unveiling Galaxies by Jean Rene Roy Book Review

The Role of images in astronomical discovery

Unveiling Galaxies is split into three parts. Images and the Cosmos, Images as Galaxy Discovery Engines and Organising the World of Galaxies.

This book charts the history of the understanding of galaxies through the use of images that have been taken over time. These images became investigative tools and our understanding grew with the emergence of new technology for imaging these vast galaxies. The book also explores the impact of optical, radio and X-ray imaging techniques.

The final part of organising the world of galaxies discusses the importance of galaxy atlases and how astronomers organised those images in order to educate us and how they promoted ideas and pushed forward for new knowledge. Images that caused confusion among astronomers are included to show us the reader what challenges were faced by astronomers of the time. We are told how images helped to distinguish between deep-sky objects, such as nebulae and galaxies. We may forget that in the early days astronomers sat looking at images and maps, there were no computers. This was very much ‘hands on astronomy’.

Unveiling Galaxies is a beautiful book and very interesting if you are into the history of astronomy and the role that images have played through the years and changed our way of thinking about the universe.

This hardback book contains 270 pages with an appendix, bibliography and index. There are also colour plates/pages found in the middle of the book, as otherwise all images and diagrams are in black and white.

Where can I buy the Unveiling Galaxies book?

You can buy Unveiling Galaxies from Amazon UK or from Amazon US – https://amzn.to/2Wfv9kO

The Cambridge Photographic Atlas of Galaxies Book Review

The Cambridge Photographic Atlas of Galaxies by Michael Konig and Stefan Binnewies

I really enjoy looking at my Cambridge Atlas of the Messier objects when imaging to see what I am looking for and what my final images should look like. So I was really pleased to see there was now an atlas of the galaxies as well.

This is a hardcover full colour book and it starts with a beautiful inner cover (both front and back) of the galaxies displayed on a constellation map providing the name of the galaxy and its co-ordinates.

The contents section is very clear listing all the galaxies covered in the book. There are over 320 pages of information.
Before we begin running through all the different galaxies there is an introduction section detailing the first galaxy catalogues and the nature of galaxies.

Each section in the book is split up into galaxy type with spiral galaxies being first. The beginning of each section covers the classification of that type of galaxy and its morphology and astrophysics.

The first galaxy in the book is NGC45. Each galaxy in turn is displayed in full colour with the images taken by the acclaimed amateur astrophotographer and these images are brilliant, very professional. There is a write up about each galaxy as well as a data section which provides us with details such as the constellation, RA and Dec, Brightness, type, names of the photographers, telescope used to image it, the imaging camera name, exposure time and location where it was imaged. Some of the galaxies have information on how the astrophotographer imaged the object as well.

Most galaxies in the book have their own page, with some having two pages where one full page displays a large full colour image.
As well as spiral galaxies there is a section on barred spiral galaxies, elliptical galaxies, irregular galaxies, dwarf galaxies, ring galaxies, galaxy groups and clusters and finally active galaxies, quasars and gravitational lenses. There is a bibliography and index at the rear of the book.

There are more than 250 galaxies featured in the book from both the northern and southern hemisphere. You will find galaxies from all catalogues including Messier, Abell and Holmberg.

Overall

What makes The Cambridge Photographic Atlas of Galaxies great for me is the really fantastic full colour images and that each galaxy has information on how that image was taken. This is really useful to the Field of View that was achieved with a certain diameter telescope and what camera was used along with the exposure times. This makes the book a brilliant reference book.

Where can I buy the Cambridge Photographic Atlas of Galaxies book?

Inside PixInsight Book Review

There have been numerous YouTube videos, articles and DVDs on PixInsight, but it’s good to see a thorough PixInsight book written on the subject with lots of helpful screenshots.

I have reviewed and used many astrophotography processing books on the subjects of various techniques from planetary imaging to deep sky imaging. One of notes include the excellent ‘Learn from the Masters’ and the excellent Photoshop book ‘Photoshop Astronomy’. But you do have to be careful with this type of book that you don’t start it and then never actually work through the whole book. This book and many other processing books can’t be picked up one day and left for a month and then started again. It’s repetition that will get the processing skills and workflow lodged into your brain. Plus you need to be processing images regularly otherwise like me you may find you forget all those brilliant Photoshop skills you once learnt.

I am not a user of the full version of PixInsight (which does cost around £200) but I have tried the LE version which is free. I do my processing in MaximDL and then in Photoshop for deep sky images that is. Planetary, Lunar or Solar imaging is done in AutoStakkert and Registax then maybe Photoshop.

PixInsight Book

Inside PixInsight is split into 4 parts, each part contains on average 6 chapters. There are 25 chapters in total in the book which is spread over 350+ pages. This book is jam packed there are no appendices fillers in this book!

The five parts are: Preprocessing, Linear Post Processing, Nonlinear Post Processing and Special Processing.

Pre-Processing

Pre-Processing is all about calibrating and aligning your individual image frames. This section takes you through doing this and telling PixInsight where to locate your light frames, dark frames and flat frames etc. There is information on using Master Darks in PixInsight as well as Dithering, star alignment and more. There are details on using reference images and how to perform batch pre-processing within PixInsight.

Linear Post-Processing

Linear Post-Processing is where we get into background models and dealing with uneven field illumination. There is also a chapter on using Masks and a chapter on Deconvolution. To finish off this section there is a chapter on color processing and noise reduction if you use a colour camera.

Non-linear Post Processing

In Non-linear Post Processing we look at stretching, combining our LRGB frames. We also take a look back at the various toolbars and menus and then work on nonlinear noise reduction, HDR (High Dynamic Range) compression together with working on the images contrast and sharpness. There are then a couple of chapters about finishing up such as looking at color saturation, some transformations and painting. Finally there is a chapter on archiving, saving your work in different formats and how to print.

Chapter 21 is a workflow chapter that takes you through processing an image with a mono or colour camera.

Special Processing

The Special Processing section specialises in comet techniques, HDR, drizzle, multi-scale images, narrowband processing and workflows. There is then a chapter on mosaic processing.

Overall Thoughts on Inside PixInsight

At the end of the book are some really nice deep sky images that have been processed in PixInsight.

Inside PixInsight contains a mixture of colour and black and white images. The screenshot are mainly in B&W which is fine as they really don’t matter too much. There are enough images to stop you getting lost.

From what I have read and followed through the book it seems a good book to stick at and work through if you really want to conquer PixInsight. Plus it’s nice to read a paperback as opposed to staring at a screen all the time, but more often than not I imagine you will have the book open in one hand and the other hand will be on the mouse whilst using PixInsight.

I think you need to read this book, follow online tutorials and watch some YouTube videos and practice, practice, practice in order to be become a seasoned user. I can recommend using ‘Inside Pixsight’ as one part of your arsenal.

Where can I buy the Inside PixInsight book?

You can buy Inside PixInsight from Amazon UK

Finding a Million Star Hotel Book Review

Finding a million star hotel – An Astro-Tourist’s Guide to Dark Sky Places written by Bob Mizon.

The main body of the book is about various locations from which to stargaze around the world. This section is broken down into the US, England, Europe and the odd country outside Europe like Iceland. Each location has some useful information about it and some web links to learn more about the location and it’s accommodation.

Much more than a travel guide

But please don’t think this book is just about hotel listings or where to camp around the world. There is much more to this book than that. Less than half of the book, around 120 pages is given up to discussing the best places in the UK, Europe and US to stargaze.
Included in the book are also details on what defines a dark sky site, what to observe when which includes the planets, galaxies, nebulae and some very nice easy to read constellation diagrams. There is also a section on how to view the Sun safely.

Of the 8 chapters in the book chapter 5 covers the great solar eclipse of 2017, but you also get globe maps showing the best locations to view subsequent solar eclipses all the way to the year 2026.

As an addition there is also a small chapter entitled ‘The Star Hunter’s Kit’ which briefly discusses the sort of binoculars or telescope magnification you may require.

Many Appendices

The “Finding a million star hotel” book contains a lot of appendices – 9 to be exact. There is a list of the International Dark Sky Places, UK Dark Sky Discovery Sites, a report of the royal commission on environmental pollution, 100 places in the US to see the 2017 Solar Eclipse, a further information section, a glossary of astronomy terms, a glossary of light pollution terms and details about the Bortle scale and SQM readings.

Overall thoughts…

So, all in all something for everybody. Information on what a dark sky really is, where to find them, what to take with you and how and what to observe when you get there. Perfect.

But one of the best things about “Finding a million star hotel” is that it’s really nice to see full colour images for a change throughout this book, instead of those horrible black and white images that are all too familiar in a lot of astronomy books.

Where can I buy Finding a Million Star Hotel Book?

You can buy Finding a Million Star Hotel from Amazon UK

Building a Roll-Off Roof or Dome Observatory Book Review

This the second edition of the popular Guide to designing and building your own Roll-Off Roof or Dome Observatory. There comes a time when it becomes tiresome having to set up telescopes cameras cables and computers each night, a lot of the observing time is lost Polar aligning and setting up. If you are fortunate to have the garden space and dark skies then it’s time to think about making a permanent observatory.

At the start of the book there are various photos of observatory types which show the many ways of building an observatory for your telescopes and equipment. These include twin sliding roofs, log cabins, ‘A’ frame designs, cantilever opening roofs and ‘Clapp Trapp’ folding panels which is an observatory which can be taken to star parties.

This book is all you will need, it explains the benefits of a permanent building and the pros and cons between Domes versus Roll-Off Roof. The first step is to decide the size of the structure, the telescopes and equipment to be housed, this book takes you through all the planning stages with good advice on what to consider in the design and criteria to consider.

Part 1 – Planning

The building stage considerations involve types of footing and provisions for data and mains cables, there are detailed engineering drawings in the book to help you at this stage.

The most important part of the observatory is the Pier design; detailed drawings are included with suggested dimensions which you need to take into account for the equipment to be installed. Isolating the pier from the observatory floor is an important consideration and is dealt with in detail.

The engineering plans for the Framing and walls for the roll–Off roof are shown in drawings and photographs, advice on fabricating the different roof tracks and roof are shown and the methods of construction which can be adapted to suit your own design.

Part 2 – Building

Part 2 is how to build a Dome Observatory detailing the design and construction methods. This is a more complicated build particularly the dome which can be fabricated using plywood, galvanized steel or fibreglass. The design shown is for a 2.1 meters high wall base. This section goes through step by step stages of construction with photos and drawings for various dome designs.

If you prefer an off the shelf observatory Chapter 14 describes the three main commercial types, the Roll-Off Roof, The Rotating Clamshell and the Rotating Aperture including feature of the SkyShed POD, SkyShed POD Max and the UK made Pulsar Observatory.

Overall

To summarize this is an excellent technical book to have if you are planning to build your own observatory or just looking at improving an existing setup, it’s packed with engineering drawing and photos to help you on your way with advice based on years of experience of the author.

Reviewed By Mick Jenkins

Where can I buy the Building a Roll-Off Roof or Dome Observatory Book?

You can buy Building a Roll-Off Roof or Dome Observatory from Amazon UK