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Equipment Discussions >> Observatories

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mustgobigger
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Reged: 06/12/07

Loc: Michigan
Re: My Modest Observatory new [Re: mustgobigger]
      #6275892 - 12/27/13 06:39 PM Attachment (62 downloads)

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mustgobigger
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Reged: 06/12/07

Loc: Michigan
Re: My Modest Observatory new [Re: mustgobigger]
      #6275895 - 12/27/13 06:39 PM Attachment (50 downloads)

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mustgobigger
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Reged: 06/12/07

Loc: Michigan
Re: My Modest Observatory new [Re: mustgobigger]
      #6275896 - 12/27/13 06:40 PM Attachment (35 downloads)

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mustgobigger
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Reged: 06/12/07

Loc: Michigan
Re: My Modest Observatory new [Re: mustgobigger]
      #6275899 - 12/27/13 06:41 PM Attachment (65 downloads)

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Midnight Dan
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Reged: 01/23/08

Loc: Hilton, NY, Yellow Zone (Bortl...
Re: My Modest Observatory new [Re: mustgobigger]
      #6275916 - 12/27/13 06:47 PM

Looks nice!

Keep an eye on that pooch though. Seems like he's looking for a place to lift his leg!

-Dan


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Raginar
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Reged: 10/19/10

Loc: Rapid CIty, SD
Re: My Modest Observatory new [Re: Midnight Dan]
      #6276333 - 12/27/13 11:21 PM

That's really neat. How's it secured to the ground?

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csa/montana
Den Mama
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Reged: 05/14/05

Loc: montana
Re: My Modest Observatory new [Re: mustgobigger]
      #6276452 - 12/28/13 12:47 AM

Really a nice setup! Nice pier also. I noticed in one of your pictures, you had a radiator type heater, did that not give enough heat to stay comfortable? Just curious.

How do you secure it for high winds?


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mustgobigger
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Loc: Michigan
Re: My Modest Observatory new [Re: csa/montana]
      #6276501 - 12/28/13 01:30 AM Attachment (53 downloads)

thanks,
the electric heater was ok but since i only have one circuit
i wanted to go with non electric for heat and save the amps
for running lights and computer from 110v...dew control with a 12 volt 30 amp power supply.
running the electric heater on high really taxed the one
circuit i had.
for anchoring astrogazer sells a anchoring system made just
for this and its supposed to handle up to 90mph winds.
once anchors are in place....they are driven into the ground
about 2 feet and then you pull on the cable thats attached
and anchor turns 90 deg and is in the ground securely.
it also comes with the standard tent type stakes
for weekend use but i would not count on them for more than
about 30 mph.
after you drive anchors in the ground you use supplied winching straps to cable in the ground and on cable
attached to 4 of the support poles.
then there are 6 more straps you attach from bottom ring
of frame to rotating ring on base of dome after your done
with observing session.
while observing there are pins that attach through roller
brackets that hold dome on and still let you rotate dome.
you can see upper cable attached to support pole in picture.


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Midnight Dan
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Loc: Hilton, NY, Yellow Zone (Bortl...
Re: My Modest Observatory new [Re: mustgobigger]
      #6276894 - 12/28/13 10:09 AM

Quote:

the electric heater was ok but since i only have one circuit
i wanted to go with non electric for heat and save the amps




Farther down, it looks like you are now using a catalytic propane heater. I have one of these for my Skyshed POD observatory and it works well - usually.

Problem is - the by products of propane combustion are carbon dioxide and water vapor. In cold, humid weather, that water vapor will condense on the cold surfaces inside your observatory, like the pier, mount, and scope. I found that, on some days, I just couldn't use the heater because everything ends up soaked.

-Dan


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mustgobigger
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Reged: 06/12/07

Loc: Michigan
Re: My Modest Observatory new [Re: Midnight Dan]
      #6276930 - 12/28/13 10:33 AM

Quote:

Quote:

the electric heater was ok but since i only have one circuit
i wanted to go with non electric for heat and save the amps




Farther down, it looks like you are now using a catalytic propane heater. I have one of these for my Skyshed POD observatory and it works well - usually.

Problem is - the by products of propane combustion are carbon dioxide and water vapor. In cold, humid weather, that water vapor will condense on the cold surfaces inside your observatory, like the pier, mount, and scope. I found that, on some days, I just couldn't use the heater because everything ends up soaked.

-Dan



you have a point there....i think i will keep the electric
in there also...plenty of room.
as long as i just run the led lights and maybe telescope
i should be alright with heater.
i can use my jumper pack batteries for the dew control.
the electric did keep it nice and dry.


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mustgobigger
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Reged: 06/12/07

Loc: Michigan
Re: My Modest Observatory new [Re: mustgobigger]
      #6277577 - 12/28/13 04:54 PM Attachment (55 downloads)

temps were a balmy 50 today so i think i will try doing first light tonight.
mounted the 14" on the cge pro today.


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mustgobigger
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Reged: 06/12/07

Loc: Michigan
Re: My Modest Observatory new [Re: mustgobigger]
      #6277582 - 12/28/13 04:58 PM Attachment (34 downloads)

plenty of room once telescope is mounted.
i custom made the dovetail on bottom and made it solid.
also custom made the dew shield with pvc and used 2" velcro
and prostar flocking inside.
left it sitting in garage last month and it handles the cold well.


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mustgobigger
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Reged: 06/12/07

Loc: Michigan
Re: My Modest Observatory new [Re: mustgobigger]
      #6277589 - 12/28/13 05:00 PM Attachment (31 downloads)

left a little room under tube to make sliding counterweights.
flocking inside dew shield looks great.


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mustgobigger
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Reged: 06/12/07

Loc: Michigan
Re: My Modest Observatory new [Re: mustgobigger]
      #6277591 - 12/28/13 05:02 PM Attachment (43 downloads)

i sent the levenhuk 80mm triplet back.
going to go with the williams optics 81mm triplet with flattener.


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Raginar
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Reged: 10/19/10

Loc: Rapid CIty, SD
Re: My Modest Observatory new [Re: mustgobigger]
      #6278016 - 12/28/13 08:51 PM

That is neat. A commercial product I take it?

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jimbo728
sage


Reged: 11/05/13

Loc: Central NH
Re: My Modest Observatory new [Re: Raginar]
      #6278057 - 12/28/13 09:14 PM

I like that very much...There may be one in my future.
Jim


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mustgobigger
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Reged: 06/12/07

Loc: Michigan
Re: My Modest Observatory new [Re: jimbo728]
      #6278756 - 12/29/13 09:38 AM

you can find them here.

astrogizmos


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tim57064
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Reged: 08/23/12

Loc: Southeast South Dakota,USA
Re: My Modest Observatory new [Re: mustgobigger]
      #6278853 - 12/29/13 10:31 AM

Do you have to rotate the entire structure? I checked out the site and still do not see how it rotates. Do not see any track or casters for rotation? Very curious.

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Midnight Dan
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Reged: 01/23/08

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Re: My Modest Observatory new [Re: tim57064]
      #6278953 - 12/29/13 11:25 AM

Quote:

Do you have to rotate the entire structure? I checked out the site and still do not see how it rotates. Do not see any track or casters for rotation? Very curious.




Here's a video.
http://www.youtube.com/watch?v=B0sz8Wc0k6o
You can see it rotating near the middle of the video.

-Dan


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tim57064
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Reged: 08/23/12

Loc: Southeast South Dakota,USA
Re: My Modest Observatory [Re: Midnight Dan]
      #6278996 - 12/29/13 11:49 AM

Dan,Thanks for the link.You could just see the base stationary and the dome movement even if it was for a mere second.Quite expensive though for a temporary shelter,don't you think?Yet if a person does not have the space for a permanent structure,well ,I guess this would work.

Edited by tim57064 (12/29/13 11:51 AM)


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