Monday, November 30, 2009
Update on Starobserver.eu
Hi all,I have to apologize that I have not posted a lot in 2009, but due to some personal things, my time was very limited. I did however put a lot of effort in Starobserver.eu, my new website about observing stars and starclusters. Right now I have documented 24 objects which I have observed in the last year, with sketches and very detailed observing reports: 12 open clusters and 12 stellar objects. In the next few months a hope to add a group of asterisms. Very recently I added a "search engine" to Starobserver.eu and an article about my observing reports. Just have a look at my new site. Any tips and/or comments are of course appreciated.
And here's a sketch of M44 that made it into Astronomy Sketch of the Day:

Anyway, I hope to post a little more in my blog again in the next months.
Clear skies to all of you..........
Friday, August 14, 2009
NGC 2420 in Gemini
Hi,
Just a quick update on my new website Starobserver.eu. I added another sketch to the open cluster section. Last winter I observed NGC 2420 in Gemini. This little cluster lies in the neighbourhood of the Eskimo Nebula, For a detailed observing report, some info on the discovery of this cluster, a finder chart and other interesting things on NGC 2420, please follow this link to NGC 2420 on StarObserver.eu
Enjoy!
Wednesday, June 17, 2009
eta Persei
eta Persei is a bright double star, placed within a striking asterism. When I was writing my notes on this double, I found out the collecting the right data on individual stars is sometimes much more complicated than you think. I got some help from an Austrian astro-photograpeher, Peter Wienerroither. His image of eta Persei was a great help identifying all the components of eta Persei. To read the full report, just follow this link to StarObserver.
Wednesday, June 10, 2009
NGC 6910 The Rocking Horse Cluster
NGC 6910, a small and compact open cluster in Cygnus. When observing this open cluster you see bright yellow stars, that are in fact B-stars. So they should appear white. What causes the yellowish appearance is explained in this article, where I got some great help from Professor James Kaler, author of some of the best books on stars, and Dr. Franz Gruber, who sent me a few magnificent deepsky images of the Cygnus area to illustrate the high degree of nebulosity in the Cygnus area. To read the full story, and have a look at the wonderful images of Dr. Franz Gruber, follow this link to StarObserver.eu
Image by Dr. Franz Gruber
Tuesday, June 02, 2009
Star Observer is online!

Today I launched my new website, Star Observer, a website dedicated to the observation of stars and open clusters. I created this website to have a more structured way to present my observing reports from my favorite objects: stars and open clusters. At the core of Star Observer you will find a new and growing collection of visual observing reports. There is a separate page for every object observed. On an object's page you will find my personal observing report, a sketch (or image) and some notes and background information about the object. The observing reports can be found in the top bar menu under "Single and multiple stars" and "Open clusters". In the section "observing stars" you will find some information about the equipment and resources I use for planning, executing and evaluating my observations.
In the future new observing reports will be added on a regular bases. I am also planning to publish a few articles about stars and clusters, and the method I developed for planning, executing and evaluating / publishing my observations.
You can navigate through StarObserver.eu using the different menus or the sitemap. If you have any questions or suggestions, please feel free to contact me, using the contact form.
Updates on StarObserver.eu will be announced in this blog. Follow this link to go to the homepage of Star Observer.
Clear skies
Math Heijen
Wednesday, February 04, 2009
Working on a new website.......
Hi,It's been a long time since you heard from me, but during the last few months I've been working on a new website dedicated to the observing of stars and star clusters. It will take a little while before it will go online, but I will let you know! In the meantime I'm working on the design and content for this new site, and every now and again I look outside, and wow, in the last week of January Venus and the Moon were lined up in the evening sky. Hope you like the images. Please click to enlarge.


Sunday, October 19, 2008
The Moon........
Hi,
Last week I shot a few images with my Canon Powershot handheld at the 85mm Zeiss Diascope. Here's a nice sample!
Click to enlarge
Wednesday, August 13, 2008
First light for the DMK 21AF04 AS
At the moment I'm testing my new camera, the DMK 21AF04 AS. I first tried the camera on the Coronado PST, and I was surprised by the result. The first image is a typical frame I selected from the 1-minute movie I shot from a prominence. The second image shows the stacked (600 frames) and processed version.

I will inform you about the equipment set-up and the stacking/processing software in the near future. Right now I'm busy reading the software manuals and experimenting with the few movies I recorded. In the end this monochrome camera will be used to shoot detailed images of the Moon, the Sun in combination with the Baader Herschel Prism/Continuum filter and the Sun in H-Alpha with the Coronado PST. I will keep you updated!







