SingAstro

Hi I'm looking for an 8" f6 dob. If you've one for sale please pm me.

I had some leftover plywood after making my ultraportable dob, so I decided to build an EQ platform. https://farm5.staticflickr.com/4796/40705753362_29cb546a7a_c.jpg 2018-03-11_11-34-47 by Cyrus Beh , on Flickr https://farm5.staticflickr.com/4775/40705750062_0b87afa8e4_c.jpg 2018-03-11_11-34-24 by C...

That's mostly due to the camera angle. The top assembly is about the same size as the bowls. In addition, there is a lot of gravel, which helps the balance.

I did a partial first light Saturday and Sunday nights. Partial, because I had it set up in my living room and just looked at a single region through the window, just to check focus and collimation. I've to say it went better than I had expected. I used a collimation cap to get rough collimation, an...

Next, I'll describe the UTA. This is a hexagon constructed from Makerbeams and 60 degree brackets (they don't have 120 degree brackets, so I just let the rod slide out the other way). https://farm5.staticflickr.com/4407/37096360382_799063b734_c.jpg Upper tube hexagon by Cyrus Beh , on Flickr As you ...

So, I kinda went nuts and built a 10" F4 Alkaid clone these past 3 weeks. Here it is: https://farm5.staticflickr.com/4784/38772147690_ef9ccba928_c.jpg Fully assembled by Cyrus Beh , on Flickr Only a few things remain to be done, such as touching up the paint, covering the poles with heat-shrink...

Since he mirror cell has been mounted, so I cannot take any pictures now. Here's a schematic that's probably a bit clearer anyway. https://farm5.staticflickr.com/4382/36841410370_3e15a1f00a_c.jpg Mirror Cell by Cyrus Beh , on Flickr The mirror cell is made of three Makerbeams, held together with 60 ...

Look into drift alignment.

http://www.skyandtelescope.com/astronom ... alignment/

If you are familiar with PHD2 software,
https://openphdguiding.org/tutorial-dri ... with-phd2/

Might wanna be careful with the thirsty hippo though. They become very wet over time and I accidentally tipped one over and destroyed some lenses when the dissolved calcium chloride came into contact with the optics.

I bought a dehumidifier 3 years ago and placed it in my household shelter. I store my cameras, lenses, telescopes and more valuable books in there. It maintains 50%rh and has for the past few years. No mold problems at all.