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atm_free · Amateur Telescope Making
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Group Information

  • Members: 1214
  • Category: Telescopes
  • Founded: Jun 1, 2002
  • Language: English
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Activity within 7 days:

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Description

This Group is for the FREE exchange of ideas related to Amateur Telescope Making (ATM).

Have fun, be kind, play fair, learn, teach, participate.

PHOTO... Here's a contributed photo from Ed Jones. The scope is a "Sheep Sprinkler"... The full size photo can be viewed by ATM_FREE members in the "Photos" section. Check out the ATM_FREE Group's discussion for more info on this scope and other things we are doing.

Ken Hunter

Most Recent Messages

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Re: latitude and longditude
Posted - Sat Jul 4, 2009 3:27 pm
 monje380
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Binocular telescope
Hi, who has build a binocular newtonian telescope with 2 Mirrors ? Peter
Posted - Fri Jul 3, 2009 10:43 pm
 pdebaan
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Slightly OT: Pictures from my US trip to date: Some stuff is ATM rel
Hi All, Just thought I'd share some pictures from my wanderings around the US, I'm now two months into the trip and am getting a bit travel weary.
Posted - Fri Jul 3, 2009 12:56 pm
 Thomas Janstrom
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Re: latitude and longditude
Longitude changes only your local time - UT offset. Planispheres usually are operated on local time, so the only thing to keep in mind is daylight savings.
Posted - Thu Jul 2, 2009 1:05 am
 Mark Holm
holmmd17
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Re: 12 inch dia 19mm thick float plate into f/5
Thanks a ... From: brock.family To: atm_free@yahoogroups.com Sent: Wednesday, July 01, 2009 5:02 . Subject: Re: [atm_free] 12 inch dia 19mm thick float plate
Posted - Wed Jul 1, 2009 1:57 pm
 a
ak6666666
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Message History

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2009 86 282 288 223 222 71 7
2008 153 124 150 117 47 273 170 77 58 114 99 65
2007 144 177 110 111 66 23 80 99 87 50 96 110
2006 131 307 134 228 500 108 315 129 216 165 213 209
2005 339 369 319 91 234 460 136 153 168 57 292 107
2004 167 150 134 120 84 96 48 55 114 158 305 374
2003 96 103 135 158 179 93 84 158 168 178 284 160
2002 252 209 313 184 198 113 141
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