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Home Built Optical Planetariums
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Pinned: Topic has attachmentsBulb Table
Lamp Data
17
 Ken Miller
6,229
 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!
4
 mrgare5050
4,930
 26th August 2008 - 07:33 PM
Last post by: ltkhoover
Forum Topics
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Topic has attachmentsJamie's Planetarium MKII
A fully optical projector
2
 Philostopher1
42
 13th September 2018 - 05:51 PM
Last post by: moonmagic
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Topic has attachmentsFrom: Jamie's Planetarium  * 123» 11
From Topic ID: 25344
206
 Philostopher1
6,922
 13th September 2018 - 04:48 PM
Last post by: Ron Walker
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Topic has attachmentsWho built this?
Home made Star projector UK
4
 Philostopher1
395
 29th July 2018 - 09:44 PM
Last post by: Philostopher1
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Topic has attachmentsPlanetarium Orrery Automata
Van Cleef and Arpels Planetarium \ Orrery Watch
10
 Philostopher1
644
 3rd July 2018 - 11:43 PM
Last post by: Philostopher1
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Topic has attachmentsStar Plates
Making star plates and Plotting to Truncated Icosahedron
7
 Philostopher1
312
 15th June 2018 - 05:57 PM
Last post by: Strgzr
No new  
19
 Barnetarium
5,777
 7th June 2018 - 01:29 PM
Last post by: mrgare5050
No new  
20
 Scott T
1,009
 23rd May 2018 - 04:28 PM
Last post by: Ron Walker
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60
 Tim Mitchell
25,828
 24th April 2018 - 11:03 AM
Last post by: Ken Miller
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Topic has attachmentsDIY simple Lenses
Making lenses for better stars
13
 Philostopher1
536
 3rd April 2018 - 06:37 PM
Last post by: Philostopher1
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Topic has attachmentsPin Hole Light source via LED  * 12
Cree LEDs, Smartphone lenses and light pipe homogenizers.
21
 Philostopher1
1,742
 19th February 2018 - 10:02 AM
Last post by: Ron Walker
No New Posts  
Who built this?
Home made Star projector UK
0
 Philostopher1
259
 3rd January 2018 - 03:55 PM
Last post by: Philostopher1
No New Posts  
Light Emitting Plasma Sources
Plasma emitters as potential point sources
1
 Philostopher1
394
 17th August 2017 - 10:42 AM
Last post by: Ron Walker
No New Posts  
Topic has attachmentsLEDs with hexagonal emitters
no square stars!
3
 Philostopher1
521
 10th August 2017 - 12:28 PM
Last post by: Ron Walker
No new  
56
 Ron Walker
54,106
 6th July 2017 - 10:57 AM
Last post by: Ron Walker
No New Posts  
1
 heptacloro
653
 16th December 2016 - 11:20 AM
Last post by: Ron Walker
No New Posts  
Topic has attachmentswhat is it all about...?
strange fascination about the stars inside a room
13
 Bossard
3,753
 2nd December 2016 - 04:04 AM
Last post by: mrgare5050
No New Posts  
Topic has attachmentsNew Planetarium
From starball to operational planetarium
5
 tomoarnold
3,093
 29th April 2014 - 03:32 PM
Last post by: moonmagic
No New Posts  
Topic has attachmentsBulb question
what bulb is best for a small projector?
7
 Ron Walker
3,422
 21st April 2014 - 11:03 AM
Last post by: Ron Walker
No new  
16
 Charlie Miller
4,506
 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
119
 Ron Walker
54,062
 9th January 2013 - 10:44 AM
Last post by: Ron Walker
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40
 Ken Miller
24,018
 27th December 2012 - 11:13 AM
Last post by: mrgare5050
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2
 Charlie Miller
1,844
 24th December 2012 - 10:46 AM
Last post by: Ron Walker
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208
 mrgare5050
241,165
 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
26
 albert
15,451
 18th August 2012 - 02:45 PM
Last post by: Ron Walker
No new
Topic has attachmentsModifying a Spitz Jr.  * 12
I am still not finding some basic information
29
 flyboybc
15,040
 7th August 2012 - 04:21 PM
Last post by: Ron Walker
No new  
Thoughts on building a star-cylinder projector
manuscript under development
17
 Charlie Miller
6,753
 20th September 2011 - 12:35 PM
Last post by: Ron Walker
No New Posts  
2
 Martin Lewicki
3,074
 19th August 2011 - 02:00 AM
Last post by: Martin Lewicki
No New Posts  
Topic has attachmentsComparing Stinger and Ray-o-Vac light bulbs
Stinger electric specs needed
7
 Charlie Miller
4,697
 20th July 2011 - 08:36 PM
Last post by: mrgare5050
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