Selztal Observation Site

Welcome - Enjoy your visit

July
7
2015

some testing in narrow band H-Alpha.

During the night July 06/07th, I took the opportunity to try to do some narrow band H-alpha images having in mind that the moon rises close to 22:00 UT hoping that this will not impact narrow band imaging to much. I selected Cirrus using my 150/1340mm Refractor ...

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June
28
2015

more pieces come together

Within last days the light weight tube has been delivered. So it's time to pull the components together in oder to get a better understanding of the minimum size of the housing required. In addition I was able to check if the dimensions of the aequatorial pier has been selected correctly ...

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May
25
2015

Further improvements...

During the last night, I tried to improve the north/south alignment and getting more pratice in creating pointing files. Aim is to go to longer exposure times without any additional guide facilites.

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May
15
2015

First light on ASA-DDM85...

One striking feature of the DDM85 is to allow medium time exposures without additional tracking devices. So I started a first test to find out, if this works as expected. For this purpose I performed a pointing file with the minimum of stars required (4) to calculated and correct the misalligned north/south and height of the RA-axis.

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May
8
2015

Further pieces arrives...

This is how a ASA DDM85 will be delivered. ASA states that this mount is transportable. Well considering that the heaviest part has a weight of 39kg. Overall weight - incl. counterweights ~110kg. This statement is in princple true - but it's not an easy business to get this tranported and up to work - however, I will use this mount stationary.

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