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Home Built Optical Planetariums
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Pinned: Topic has attachmentsBulb Table
Lamp Data
Ken Miller
4,959
5th March 2015 - 10:56 AM
Last post by: Ron Walker
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Pinned: Drill Bit Table for Star Holes
How Low Can You Go!
mrgare5050
4,183
26th August 2008 - 07:33 PM
Last post by: ltkhoover
Forum Topics
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heptacloro
278
16th December 2016 - 11:20 AM
Last post by: Ron Walker
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Topic has attachmentswhat is it all about...?
strange fascination about the stars inside a room
Bossard
2,922
2nd December 2016 - 04:04 AM
Last post by: mrgare5050
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Ron Walker
46,753
20th October 2014 - 10:09 AM
Last post by: Ron Walker
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Topic has attachmentsNew Planetarium
From starball to operational planetarium
tomoarnold
2,403
29th April 2014 - 03:32 PM
Last post by: moonmagic
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Topic has attachmentsBulb question
what bulb is best for a small projector?
Ron Walker
2,358
21st April 2014 - 11:03 AM
Last post by: Ron Walker
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Charlie Miller
3,403
4th November 2013 - 04:03 PM
Last post by: tomoarnold
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Topic has attachmentsBuilding a home planetarium from scratch  * 123» 6
or, what possessed me to start this
Ron Walker
46,770
9th January 2013 - 10:44 AM
Last post by: Ron Walker
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Ken Miller
20,345
27th December 2012 - 11:13 AM
Last post by: mrgare5050
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Charlie Miller
1,491
24th December 2012 - 10:46 AM
Last post by: Ron Walker
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mrgare5050
235,112
19th October 2012 - 10:06 AM
Last post by: Ron Walker
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Topic has attachmentsGerman youngsters win science fair with planetarium  * 12
homemade optical starball system
albert
13,072
18th August 2012 - 02:45 PM
Last post by: Ron Walker
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Topic has attachmentsModifying a Spitz Jr.  * 12
I am still not finding some basic information
flyboybc
12,360
7th August 2012 - 04:21 PM
Last post by: Ron Walker
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Thoughts on building a star-cylinder projector
manuscript under development
Charlie Miller
5,569
20th September 2011 - 12:35 PM
Last post by: Ron Walker
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Martin Lewicki
2,596
19th August 2011 - 02:00 AM
Last post by: Martin Lewicki
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Topic has attachmentsComparing Stinger and Ray-o-Vac light bulbs
Stinger electric specs needed
Charlie Miller
4,101
20th July 2011 - 08:36 PM
Last post by: mrgare5050
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sgrijalva
60,813
29th May 2011 - 12:18 AM
Last post by: Higekita
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davis100
6,480
25th April 2011 - 06:48 AM
Last post by: SteveDurham
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mrgare5050
41,056
22nd April 2011 - 05:02 AM
Last post by: mrgare5050
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Pin Hole Projector Calculations
Planetarium Projector - Pin Hole Calculations
Parag
4,382
24th February 2011 - 10:44 PM
Last post by: Parag
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Tim Mitchell
23,740
25th January 2011 - 03:12 PM
Last post by: mtmannh
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jmarmor
12,548
20th January 2011 - 08:37 AM
Last post by: Charlie Miller
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Bulb needed for 6m dome
Can anybody help?!?
marode
2,071
10th October 2010 - 11:07 AM
Last post by: Ron Walker
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Bossard
3,325
25th July 2010 - 01:44 PM
Last post by: Ron Walker
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PaulK
1,926
4th July 2010 - 03:22 PM
Last post by: PaulK
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joaocbm
3,517
22nd February 2010 - 02:15 PM
Last post by: Ron Walker
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Charlie Miller
19,558
13th January 2010 - 02:20 PM
Last post by: Owen Phairis
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Ray Worthy
4,197
5th January 2010 - 10:01 AM
Last post by: Ray Worthy
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Topic has attachmentsThe GEA project  * 1234
3 different ideas for an advanced homemade planetarium
bauersfeld
46,285
30th November 2009 - 01:56 PM
Last post by: Charlie Miller
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