Category: Hot links!

Tuesday, July 26, 2005
Observing the Sun in H-Alpha
Observing the Sun in H Alpha

If you are a beginning solar observer like me, or you consider becoming one, you maybe asking yourself: what can I see on the Sun when observing in H-Alpha with a special telescope like for instance the Coronado PST. I found this wonderful article by David Knisely, Observing the Sun in H-Alpha, on the web last week. In this article, David not only shows some great images that let you see what to expect when observing the Sun in H-Alpha, he also explains all the different features like prominences, filaments, active regions, flare's, plage's and others you might observe. follow this link to read David's article.

Posted by Math on 07/26 at 07:28 PM | (0) Comments | filed in: Hot links! | Print
Wednesday, May 04, 2005
Global H-Alpha network

If you are interested in the latest H-Alpha images from observatories around the world, to the Global High-Resolution H-Alpha network just follow this link. All the observatories have more than 300 sunny days a year, good seeing conditions and well established H-Alpha telescope systems. Before scrolling through all the great images and movies read the introduction (under the “Network” button). This gives you all the background on the network. Great site!

For more interesting astronomy links, have a look at my link-pages with more than 300 active links. Feel free to add your own favorite links using the “Add your link” button.

Posted by Math on 05/04 at 01:19 PM | (0) Comments | filed in: Hot links! | Print
Thursday, April 28, 2005
PSRD website

If you are interested in the latest research on meteorites, planets, and other solar system bodies, be sure to visit the website of the Planetary Science Research Discoveries (PSRD).  You will find articles about the Moon, planets, comets, asteroids and more. Highly recommended! Just follow this link to get there.....

Posted by Math on 04/28 at 07:14 AM | filed in: Hot links! | Print
Monday, December 27, 2004
The colour of double stars, a tricky business!

Yesterday I published my first observing report on double stars in the deepsky section of my website. I got a lot of positive reactions, and many people asked me about the colour of the stars. Well, I think that identifying the colour of double stars is a tricky business. What colours you see when observing double stars depends on many different factors like the quality of your telescope, eyepieces, but also the “quality” of your eyes. There’s an interesting article on the Internet by Paul Baize, introduced by Andrew James, called “Notes on Double Stars - Baize Colour article”. Just follow this link and read the full story. Maybe then you understand why I think that the colours of double stars that we see through telescopes and binoculars are highly subjective!

Posted by Math on 12/27 at 08:01 AM | filed in: Hot links! | Print
Thursday, April 15, 2004
Astro images by Robert Gendler

If you are interested in making your own astro-images, be sure to visit Robert Gendlers astro imaging pages. There you will find hundreds op beautiful astro pics, but also various articles with tips and tricks for the astro photographer.

If you are intersted in some other links to astro images, just have a look in my links pages under astro pictures. Should you want to add some interesting links, please feel free to do so. Just click on “Add your link” and you will be guided through the process.

Posted by Math on 04/15 at 06:01 PM | filed in: Hot links! | Print
Wednesday, April 14, 2004

Today I added the an interesting link to my links pages,, a site with news and information about meteor showers, solar flares, auroras, and near-Earth asteroids.

Posted by Math on 04/14 at 06:50 AM | filed in: Hot links! | Print
Tuesday, March 16, 2004
Astronomy software (more than 200 links)

There is tons of astronomy software available through the internet, freeware, shareware and commercial software. Whether you are looking for a planetarium for your computer, or some software to plan and log your deepsky observing sessions, it’s all available. Follow this link to “Astronomy Software", a site with more than 200 links to various programs for Windows, Mac, Unix and other platforms.

Posted by Math on 03/16 at 09:02 AM | filed in: Hot links! | Print
Tuesday, February 03, 2004
Observing comets

If you are interested in comets or need some info on observing them be sure to visit these two links:

First of all go to Gary W. Kronk’s Here you will not only find info about comets that are visible at the moment, but also information on all periodic comets, sungrazers, links and many more interesting things on comets and their discoverers.

Another good site on comets is JPL’s comet observation home page., with recent news, images and observations, the ephemerides for current visually observable comets, and a lot of other information and links.


Posted by Math on 02/03 at 08:43 AM | filed in: Hot links! | Print
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