Skip to content
How To Create a Mosaic | Hyperion Astronomy

How To Create a Mosaic


Sometimes our equipment's field of of view just does not quite match the target we are trying to image. And some other times, the target is just too big :-) like M31, M42 and the running-man nebula, the heart and soul nebulae, etc..but there is a solution in PRISM for that too, naturally :-D

PRISM allows us the possibility to create a multi-panel mosaic to fit any target in a set of images that we can assemble ourselves. It even allows us to put these images together and form one main beautiful master frame. To get started, follow these simple steps:

Step 1: Set Up Your Field Of View

You can set up all this information easily in PRISM as follows:

  • Open the skychart settings window
  • Click on the "CCD/Telescope" Tab
  • Check the box titled "Activate CCD field display"
  • Select your camera from the dropdown menu
  • IMPORTANT: you must input your telescope's focal length correctly. You can grab an image taken with the same telescope configuration and plate solve it OR use the manufactorer's specification as a start.

Press the gear icon to open the settings window

Establish you camera settings

Step 2: Open The Mosaic Tool

Click on Observatory > Object List and a new tool opens up. Now click on File > Mosaic tool as shown below:

Observatory Menu

Object List Tool

Step 3: Set up The Mosaic

Now it is time to choose our target and experiment with how to image it, what orientation, how many tiles, etc..

  • IMPORTANT: Your camera must be connected for PRISM to retrieve its information
  • Enter a target's name and press "Go" and PRISM will find its coordinates from the skychart
  • Choose " By CCD fields"
  • Once satisfied, press "OK" at the bottom

Step 4: Display The Mosaic On The Skychart 

After you have set up your imaging, it is time to display it on the skychart to see about, fit, placement, orientation etc..

Final Result

Step 5. Let's Image Now

PRISM in a true one-stop-shop software that allows you to plan, acquire and process. Head over to Observatory > Automatic Observation and click on "Import Object List [OBJL]. PRISM will import all the tiles and what is left to do it head over to the "Execute tab" and press "Go". It is that easy. This press will take you 5 minutes to go through.

Video Tutorial

Fullscreen for better viewing :-D

Previous article Carina Nebula NGC3327
Next article How To Quickly Stretch Your Master Lights


Jim McKay - April 8, 2019

Thanks for publishing these very helpful tutorials.


Leave a comment

Comments must be approved before appearing

* Required fields

★ Reviews

Let customers speak for us

30 reviews
LE Pyxis

I have received LE Pyxs, very good quality, but does not work with Linux.
But I'm in contact with Optec to get the Linux driver.
We'll see later if it works properly.

Excellent Integrated Package

I bought PRISM v.10 Pro for its integrated capabilities. I did not want to have to "bolt together" different software packages to achieve all my objectives. Two weeks after downloading the software the skies cleared and I was able to use my ZWO CMOS camera and focuser mounted onto a Stellarvue 80mm to move all over the sky finding and taking test shots of Messier objects. I am currently working on deepening my knowledge of what the software can do, particularly pointing models and autoguiding. The look of PRISM is a little outdated - others have mentioned this - but when you discover what you can accomplish with this software package this is easily forgotten. The online tutorials work well to get you off and running and phone support is quite good! I look forward to learning a little bit more each day and to achieving high quality imaging.

Looking forward to trying it!

I bought this in anticipation of using it at my summer home. So it is still unwrapped. It did come highly recommended, and the shipping speed was nothing short of miraculous, so I can't wait to get down to work!

Great device and excellent service.

This is my first experience with Hyperion. I had quick shipping and good service. The eagle is an excellent device for controlling my telescope and camera. It is a powerful pc.

Really does the job...

For those who have the Eagle, the ECCO is a great device to monitor and adjust the dew heater. It is very easy to install. You do a short calibration in the advanced settings, be sure the sensor is properly placed, plug in the cables and bingo--all done. Highly recommend it.