Wednesday, December 30, 2009

Mars in December 2009

This the red planet as observed yesterday night from my roof observatory in Germany using my 21cm DK-Cassegrain and a DBK21 CCD camera at 6m focal length. A 2GB avi file containing 2:30min of video has been recorded. It has been used as input data for the GIOTTO stacking software. (Date: 28.12.2009, Time: 21:56 GMT)

Up: The pole (Planum Boreum) was full of snow.
Middle: Syrtis Major, Utopia Planitia, Coloe Fossae region, the albedo near "Adamas Labyrinth" were clearly visible.
Down: "Hellas Planitia" is the bright region below Syrtis Major.

Wednesday, December 16, 2009

M31-The Andromeda Galaxy

Good evening everybody,
I have just finished my new picture. It`s a mosaic of M31.
I took 4 pictures of 4x20 minutes each for the outer nebulocity and 10x2 minutes for the core using a 200/1000mm newton telescope and a AllCCd6Pro camera.
Clear Skies Astroholgi

Saturday, December 05, 2009

NGC1128 in Abell400 in Cetus

The galaxy NGC 1128 (PGC11188) in the Abell400 galaxy cluster found in the Cetus constellation contains in its galactic centre two supermassive black holes orbiting each other in a distance of 25000 ligh years. This X-Ray source is also known as 3C75. Both black holes are probably going to colide in some million years making a much bigger supermassiv black hole. NGC1128, a type "E" galaxy, has a magnitude of 14.5 mag and can be identified with amateuer astrophotographic equipment. It has an apparent dimension 30x30arcsec, making it very difficult to capture faint details.

Sunday, November 15, 2009

The planet Mars on Nov. 15th, 2009

The Mars regions Acidalia Planitia, Arabia Terra, Cydonia and Capri Chasma are slightly visible in the following infrared image.
Date: 15.11.2009
Time 1:35 MET
Apparent diameter: 8,7"
Distance from Earth: 1,072 AU
Brightness: 0,35 mag
Telescope: Mewlon 210 (21cm, f/11.5)
Camera: ToUCam
Filter: Baader IR pass
Software: Giotto v2

Tuesday, November 03, 2009

Barnard 303

Hallo fans of dark nebulae and emissions nebulae, the area around NGC 6559 and IC4685 show us some interesting objects:
  • Barnard 302 and 303 (my name is "the little snake"),
  • SH2-31 and 32, a planerary Nebula Min 1-41 and
  • some dark nebula (LDN ).
I took 4 pictures à 20 minutes with a Canon EOS 350 DA and a H-alpha Filter 13 nm from Astronomics. I used a 200/1000 Newton to capture this photo. For a larger version click here, please:

cls Holger

Tuesday, October 27, 2009

Friday, October 16, 2009

M33 Triangulum Galaxy

Hey Friends,
here is my second picture with the Alccd6 Pro.
There are a lot of starcluster, some H-alpha area`s and the wings full of dust and gas.
cls from Astroholgi

Tuesday, September 29, 2009

M27 planetary nebula in Cygnus

Hello friends,
this is my first picture with my new QHY8 Pro.
For the larger version look here:

cls from Holger

Spots on the Sun surface

Sunday, September 27, 2009

The Sun is back!

It's a couple of years ago, since I observed a sun spot. Yesterday, I again observed the Sun using a baader astrosolar filter and I indeed noticed some spots on its surface (see photo). The Sun is back! Since the Sun has an activity period of 11 years and the count of sun spots are propotional to its activity, no spots are observable in low activity periods. That was the case in the last two years.
Warning: Do not observe the Sun without a special solar filter! The intensive sun light will seriously damage your eyes!

Sunday, September 20, 2009

The Sun in the fog

The Sun in the fog, as seen today morning from the city of Backnang in Germany. Note, no filters are used to capture this photo. Even so, the sun disc is clearly visible simultaneously with the rest landscape.

This is a cropped version of the same photo, digitally processed with a Sepia filter.

Thursday, September 17, 2009

Nebulae with EOS 350 DA

hey friends of nebulae,
looking here my last pictures with my EOS 350 DA.
The panetary nebula NGC7293:

the reflexion nebula NGC7023:

and the emmisions nebula IC1805

Clear skies

Thursday, August 13, 2009

Videoclip of a Sun eclipse on Jupiter

This is a Sun eclipse on the planet Jupiter caused by its moon Io. The following videoclip has been captured from my backyard in Germany using a tiny 6 cm telescope.

Date: 05 August 2009, time: 1:15 .. 1:43 GMT+2

Telescope: Takahashi FS-60C

Extender: Televue Powermate 5x

Camera: DBK21 color Webcam

Mount: Takahashi Sky-Patrol III

Software: GIOTTO, MaximDL

Tuesday, August 04, 2009

Jupiter and friends

From left to right: Europa Jupiter Ganymede Io

Date: 2 August 2009 @2:30

Telescope: Takahashi FS60C with Powermate 5x Extender

Webcam: modified ToUCam

Thursday, July 23, 2009

Measuring the drift of a telescope mount

This is the drift of a telescope mount as recorded by WCS (Special edition for DBK Cameras). The spikes are due to bad local seeing.

Tuesday, July 21, 2009

The double star Gamma Andromeda

..just 20 minutes ago! I've used a DBK21 webcam at 2415mm focal length (f/29) to capture this photo of Almach.

Sunday, July 19, 2009

Setup PEMPro with AstroDigital.Net

PEMPro is a state-of-the-art software to measure/optimize the periodic error of telescope mounts. Initially during its setup some parameter values concerning the used telescope/camera are required. AstroDigital.Net -the free telescope calculator- can deliver them (see screenshot below)!

Monday, July 13, 2009

Vixen GP/DX - A high quality telescope mount

This is one of the most popular telescope mounts ever produced. The high quality Vixen GP-DX is designed to carry over 10 kg of photographic equipment. It is really portable and it is designed to work for a lifetime. It is made in Japan.

Saturday, July 11, 2009

a Scorpius in Greece ;-)

Scorpius is one of the most impressive constellations of the greek summer sky.
Panagiotis used a Nikon Coolpix 4500 (30sec @ ISO 1600) in a site near Athens/Greece to make this photo.

Sunday, June 28, 2009

Our latest star parties in Germany

These are some photos of our star parties in May/June 2009 in Germany. cs px