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one of my other hobbies

Unread postAuthor: sandman » Mon Mar 16, 2009 2:02 pm

I like to go observing at night occasionally, and its easier with a bigger telescope. So a while ago i decided i would build a bigger one.

This is an 8" Dobsonian Reflector with a truss tube design to make it lighter. But while it looks like a telescope i have yet to find out if it functions like one, as i haven't set the mirrors in it yet. My dad make a 16" Dobsonian for my former science teacher, so i think i got everything right on this one. when i get time we will see if it works.
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PIC_1014.JPG
yep, its a telescope
PIC_1015.JPG
still a telescope from this angle too

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Unread postAuthor: jrrdw » Mon Mar 16, 2009 3:07 pm

I've seen these before but I can't remember exactly what the artical was talking about, a moon of Saturan's I think. Can't/don't this style scope be used with sound radar???
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Unread postAuthor: sandman » Mon Mar 16, 2009 5:08 pm

to my knowledge none of have ever been used for this, but i don't know everything. But, I also don't see why this couldn't be used for it, as the primary mirror is parabolic.
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Unread postAuthor: Gippeto » Mon Mar 16, 2009 6:26 pm

Nice Dobs! 8)

Did you grind the parabolic mirror or buy? I'd like to know where and how much if you bought.

Where can you get the mirror aluminized?

F5?
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Unread postAuthor: sandman » Mon Mar 16, 2009 8:14 pm

well, u see, some of the hardware came from a broken scope that was given to us as payment for the 16" my dad built. So, the mirror came from a meade Dob. I have read how to grind mirrors and it looks so delicate i would be afraid to do it. I was told that this mirror was ~$250, but i dont know how true that statement was, it seemed a bit low but im not a mirror expert.
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Unread postAuthor: maverik94 » Mon Mar 16, 2009 9:06 pm

now this is a ....reflecting or refracting telescope, I forget the differnce. This looks like a small version of the sort of thisng they have in huge observatires. Looks nice, I hope it works well! Inay chance of taking a photo of say, saturns rings or something else cool with that when its done? If so, Make sure to post it!
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