Sunday, January 30, 2011

"Burgundy style" dinner evening.....

Yesterday evening, we had a very nice "Burgundy style" dinner with the guys and girls from work. It was organised by Arjan van Dijk evenementen. We had a very nice evening with good food, drinks and nice music. The only thing you got was a plate, knife and cup. For the rest you had to eat with your hands of course!
This is me!
This is the table during our dinner!



Saturday, January 29, 2011

Photographed Astroid 160/Una

Last wednesdayevening I tried to photograph NGC2903 (in the head of Leo). Unfortunately my goto was a bit off (set for Halley observatory in Heesch) so I ended up a bit right of the desired object. At first glance I thought this picture (a stack of 7 20min exposures @ ISO800 in the prime focus of my 200mmF5 Newtonian, riding a NEQ6) contained only stars, but a careful look at it shows many small faint galaxies. Some are standing really close to each other. What was also visible is a moving object (right bottom). A fellow astronomer found the answer in Starry Night: it is the asteroid Una.
Here is a crop showing some faint galaxies....
Look in the right bottom, there is an object moving there....

Thursday, January 27, 2011

My "voorwerp" picture featured in the Dutch astroblogs

I am very proud that the dutch site astroblogs features my "voorwep" picture.
See:
http://www.astroblogs.nl/2011/01/27/hannys-voorwerp-niet-alleen-voor-professionals/

Tuesday, January 11, 2011

IC2497 with "Hanny's Voorwerp"

"Hanny's Voorwerp" was already a long time on my todo list. Last Sundaynight Leo Minor was in reach of my scope.
For me this is a record, IC2497 is a former quasar at 730 million lightyears distance. Just before it went out it lit-up a gas cloud which is now called "Hanny's Voorwerp" because Hanny van Arkel (a Dutch teacher) discovered it at the galaxy zoo.
This picture is a combination of 8 20min exposures @ ISO800 of my Eos400d in the primary focus of the 200mmF5 Newtonian telecope.









See the distinct "green" color, that is the "Voorwerp".

Monday, December 13, 2010

IC405 Flaming star nebula with AE Aurigae

Last night I photographed the IC405 Flaming star nebula. It was the 1st real test of the observatory after commissioning/finetuning of the new NEQ6 mount. IC405 is an emission/reflection nebula. The variable star AE Aurigae lits up this nebula that is standing approx. 1600 lightyears from us. It is thought that AE Aurigae originated from the Orion star cloud (source: Burnhams' celestial handbook).
This picture was taken with my 200mmF5 Newtonian with Eos400d in prime focus on the NEQ6 mount. It is a combination of 7x20min@ISO800 autoguided totalling 2hrs20min of exposure.
I'm quite happy with the result. I conclude that the observatory is fully operational now. Next step: narrowband Halpha photography and a more sensitive CCD camera.
Here's a more detailed view of the nebula. The blue parts are dust particles and the red parts are gaseous filaments. I am impressed by the guiding accuracy of this NEQ6. Very fine and sharp details. That was what we were looking for when we upgraded from the HEQ5pro to the NEQ6 mount. For more information, see the detailed topic on http://www.astroforum.nl/threads/128938-IC405-Flaming-star-nebula-met-AE-Aurigae

Saturday, December 11, 2010

Yess, I received my golden Messier certificate

For successfully observing and logging all 110 Messier deepsky objects on www.deepskylog.be I received my golden certificate and a nice t-shirt. 2 years of hard work paid off.

Monday, November 29, 2010

Backyard observatory in the snow

Is is snowing for the first time in Holland and also in my backyard. Here's the backyard observatory in the snow for the 1st time. I was also able to solve the EQ6 power supply problems by reconnecting the 12V power cables in a better. Last Saturdaynight I driftaligned the EQ6 (with -5 degr. and the EQ6 power supply problems). Next clear night I will make a test astrophoto to see if the driftalignment procedure pays off. The good thing is that I built up some experience for the upcoming Halley Takahashi driftalignment.

Tuesday, November 23, 2010

More pictures of the Takahashi E-300/Jones-Bird combination

Here's a nice picture of the astrograph we are working on. It is a combination of a superb Takahashi Epsilon 300mm astrograph in combination with a 300mm Jones-Bird Newtonian mounted on a Astrotechniek CP-180 mount with FS2 control system. First we will get the communication going, restore goto capability (from laptop via Cartes du Ciel/ASCOM/LX200 protocol) and then we will test the autoguiding interface. After that we will refine polar alignment and do some serious astrophotography with this superb setup!

Sunday, November 21, 2010

Recommissioning Takahashi Epsilon 300mm for astrophotography

A project has been started to re-commission the Takahashi Epsilon 300mm Newton for astrophotography (with the 300mm Jones-bird Newton as guidescope) for the Halley Observatory This setup is installed on a superb Astrotechniek CP-180 mount that first has to be correctly polar aligned with drift-alignment. The mount is fitted with an FS2 goto system including a ST4 autoguiding option. Everything I need.
Here's another picture of the setup in the small observatory (the C14 on CGEM-pro is in the bigger observatory, primarily used for presentations to the public)
Here's an example of the CP-180 mount. We have to figure out how to adjust the azimuth with this mount.

Here are some specifications on the superb Takahashi Epsilon-300 astrograph:
Opening: 300mm F3.8
Focal length: 1140mm
Central obstruction: 0.36

The focal length does not scare me, I am using 1000mm now on my EQ6pro. What is very challenging to me is the collimation of a F3.8 system with the barlowed laser method.

Monday, November 08, 2010

First light with the 2nd hand NEQ6 mount: Algol, the Demon Star

This is the first testshot I made with the 2nd hand NEQ6 I bought a few weeks ago. It is a single frame shot of 30sec exposure at ISO800 with the Eos400d in primary focus of the 200mm Newtonian telescope. The guiding is very tight. I need to focus on collimation because that is clearly visible on this picure. The MPCC could not compensate all.
The datalogging of the autoguiding shows a much smoother running on the RA axis (the undershoot is when I touched the cam between exposures). Next step is focus on driftalignment and reducing coma.


Sunday, October 31, 2010

New mounts on astro fair at Sonnenborgh observatory

New Skywatcher EQ7 mount prototype.
The Mesu mount: also very nice. Can hold 2x65kg!

Sunday, October 10, 2010

Starparty at the Halley observatory

Last saturdaynight we had a nice starparty at the Halley observatory in Heesch. Here I'm standing (left) next to my 200mmF5 Newtonian. It is pointed at comet 103P/Hartley.

Monday, September 13, 2010

Comet 103P/Hartley

Comet 103P/Hartley is still very faint. I could not see it visible, so I decided to try it photographically. This is a combination of 4 20min exposures at ISO800. The green-blueish color that is very common to Comets is clearly visible. Next months it will become more bright.

Monday, September 06, 2010

NGC7331 and Stephans quintet: realm of galaxies

Last night I photographed NGC7331 and the Stephans quintet, a group of galaxies approx 300 mln lightyears distant. This is a combination of 5 20min exposures @ ISO800 with an eos400d in the primary focus of my 200mmF5 Newtonian.

I also added 5 extra exposures of NGC7331 from the previous night, this is a total of 10 20min exposures........
This is an enlarged part of the Stephans quintet itself.

Friday, September 03, 2010

IC10 and NGC7662 with the webcam

This is IC10 captured with the modded SPC900 in primary focus of my 200mmF5 Newtonian. It is a combination of 12 180sec exposures.

And here's the Blue Snowball NGC7662, also captured with the webcam.

Wednesday, September 01, 2010

NGC7635 Bubble nebula with the modified webcam

This is NGC 7635, better known as the Bubble nebula. I wanted to try my modified webcam again on deepsky objects. This is a combination of 10 90sec exposures with my SC3 modded SPC900 (fitted with ICX-424 B/W CCD) in the primary focus of my 200mmF5 Newtonian. Autoguiding was done with a separate 90mmF10 fitted with a standard TouCam webcam.

Wednesday, August 18, 2010

A day at Burgers Zoo

Yesterday we went to Burgers' Zoo near Arnhem. It was a little bit raining, but the beautiful zoo compensated this fully, see: http://picasaweb.google.com/patrickduis2/ADayAtBurgersZoo#

Monday, August 16, 2010

Perseus on the 18th of August 2010 (without Perseids)

This is a picture of Perseus I made last thursdayevening. It doesn't show any Perseids but M31 and the double cluster NGC869/884 is visible. It is a combination of 13 30sec exposures at ISO1600 combined in 1 picture with a total exposure time of 6min30sec.

Sunday, August 08, 2010

Open cluster M39 in Cygnus

Last week I photographed the beautiful M39 cluster in Cygnus. This is a combination of 2 20min exposures at ISO800 with a Eos400d in the primary focus of my 200mmF5 Newtonian. This loose cluster is standing 800 lightyears distance from us.

Presentation at the Halley observatory

Here me and my astrobuddy Morelinux (I'm standing in the front) are giving our presentations in the beautiful Halley observatory in Heesch (near Den Bosch). After that we viewed M27, M57 and Jupiter with the C14 telescope in the dome. It was a nice evening in a nice observatory.