The Sun is sporting three sunspots in this image – the Sun hasn’t been this active in years: The sunspots are as follows: AR2786 on the far left, AR2785 next, followed by AR2783 on...
Category: Blog
Giant Sunspot AR2788 Gets Companion AR2799
It looks like AR2788 has a companion now: AR2799: The new sunspot appeared overnight – AR2788 is at the bottom right and AR2779 is to the left. These two sunspots are part of solar...
New Book About PixInsight
I decided to start another book project – this time the book is about PixInsight and it will be geared specifically to users of services like Slooh.com, iTelescope.net, and other remote imaging services. I...
Sunspot AR2778
This is sunspot AR2778, at the lower-right part of the image, near the logo: This sunspot is huge – about 100,000km across and it is made up of about 12 cores. According to Spaceweather.com,...
Faster PixInsight Using Kubuntu
I’m writing this post from within the Kubuntu operating system. Kubuntu is a variant of Ubuntu, which is a variant of Linix. I decided on Kubuntu because I wanted to see whether PixInsight is...
Forthcoming Book: Title and Update
I have mentioned a couple of times that I am working on a new book. I am pleased to announce I have a title for it: Introduction To the Cosmos. Update: The book has...
Removing Dust Doughnuts From Slooh.com Images Using PixInsight
I have noticed lately that the images I get from Slooh.com have dust doughnuts in them – here is an example: This is the integrated Luminance image from four missions to NGC 246. The...
Automatically Correcting Column Defects Using PixInsight
In a previous article, I showed you how to use PixInsight’s CosmeticCorrection process to remove column defects from an image. In that article, you had to determine the location and length of defects as...
Understanding Slooh.com File Naming
While my book discusses in detail the names of the files Slooh.com produces, this question comes up pretty often, so this article discusses the details. Here are some examples of filenames Slooh.com produces: 180719m225410_20200822_020441_0_vkasfc_l_cal.fit...
Assembling a Mosaic Using Slooh.com PNG Images
In the article Using Astro Mosaic for Slooh.com Telescopes, I explained how to plan a mosaic using Astro Mosaic by Jarmo Ruuth. I also explained how to book missions and briefly explained what you...
