This is Westserlund 1, also known as the Ara Cluster – this is the wide field view: The colors in this image are great – blue, red, and yellow stars throughout, plus the presence...
NGC 6729 in Corona Australis
This is NGC 6729 and friends located in the constellation Corona Australis, a very relevant name in these times. Corona is Latin for the word “crown”, so Corona Australis is also known as the...
Hickson Compact Group 40
This is Hickson Compact Group 40, or HCG 40: A Hickson Compact Group is a grouping of galaxies that are relatively isolated, meaning that they are not part of a larger system, and are...
NGC 1850 and Friends
This is NGC 1850 and friends. NGC 1850 is at the center of the image, NGC 1855 is to the left (SE) of NGC 1850, and NGC 1858 is at the right side of...
Creating an Animated GIF in AstroImajeJ and GIMP
Images of asteroids and comets are interesting but are even more so when you can see the object moving against the background stars. In this tutorial, you’ll learn: How to create an animated GIF...
PixInsight AutoIntegrate.js Processing Script
PixInsight offers a lot of capability for processing astronomical images; however, it can be difficult to learn due to its unconventional, process-based, approach. While PixInsight offers a broad variety of processes, it is extensible...
How To Determine Conditions at Slooh Telescopes
How do I know when the telescope is open or online? What’s the weather like? Those are probably the most asked questions by new members using Slooh’s remote telescopes. When you have your own...
Using GIMP To Combine Three Mono Images Into One RGB
I frequently get asked about how to combine three mono images into one RGB using GIMP. This article addresses how to do just that. I assume you have three mono images, one for each...
Slooh.com 5 Minute Exposure Results
Someone asked a question about what a 5-minute exposure looks like from Slooh.com – specifically what kind of results can be expected from a 5-minute mission? Background Slooh.com provides its members with reservation slots,...
Slooh.com Exposure Times
Someone asked a question about the exposure times on the Slooh.com telescopes, so this post answers that question and provides other details. As described in my book, Slooh.com is unlike other ‘telescope as a...
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