http://tech.groups.yahoo.com/group/atm_free/ Amateur Telescope Making Sat, 04 Jul 2009 15:27:34 GMT monje380 http://tech.groups.yahoo.com/group/atm_free/message/14170 http://tech.groups.yahoo.com/group/atm_free/message/14170 Fri, 03 Jul 2009 22:43:21 GMT pdebaan http://tech.groups.yahoo.com/group/atm_free/message/14169 http://tech.groups.yahoo.com/group/atm_free/message/14169 Hi, who has build a binocular newtonian telescope with 2 Mirrors ? Peter Fri, 03 Jul 2009 12:56:56 GMT Thomas Janstrom http://tech.groups.yahoo.com/group/atm_free/message/14168 http://tech.groups.yahoo.com/group/atm_free/message/14168 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. Thu, 02 Jul 2009 01:05:06 GMT Mark Holm http://tech.groups.yahoo.com/group/atm_free/message/14167 http://tech.groups.yahoo.com/group/atm_free/message/14167 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. Wed, 01 Jul 2009 13:57:36 GMT a http://tech.groups.yahoo.com/group/atm_free/message/14166 http://tech.groups.yahoo.com/group/atm_free/message/14166 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 Wed, 01 Jul 2009 12:49:30 GMT monje380 http://tech.groups.yahoo.com/group/atm_free/message/14165 http://tech.groups.yahoo.com/group/atm_free/message/14165 Can anyone tell me if my lat and long will make any difference to my planisphere . My location 37.17.402n 05.23.246 , all of my books maps etc are based on Wed, 01 Jul 2009 11:01:58 GMT brock.family http://tech.groups.yahoo.com/group/atm_free/message/14164 http://tech.groups.yahoo.com/group/atm_free/message/14164 Yes. I've made a few. Dave ... From: a To: atm_free@yahoogroups.com Sent: Wednesday, July 01, 2009 1:00 AM Subject: [atm_free] 12 inch dia 19mm thick float Tue, 30 Jun 2009 18:26:11 GMT gary8us http://tech.groups.yahoo.com/group/atm_free/message/14162 http://tech.groups.yahoo.com/group/atm_free/message/14162 Hi all: Just a quick note to let you know that I've posted an article describing my 8-inch travelscope. I built it a few years ago and the state of the art has Tue, 30 Jun 2009 16:21:04 GMT a http://tech.groups.yahoo.com/group/atm_free/message/14161 http://tech.groups.yahoo.com/group/atm_free/message/14161 Can a f/5 mirror be made from 12 inch dia 19mm thick plate glass? Ali Mon, 29 Jun 2009 12:02:08 GMT Peter http://tech.groups.yahoo.com/group/atm_free/message/14160 http://tech.groups.yahoo.com/group/atm_free/message/14160 Hi, I have not posted for a while. Does anyone know of a free web hosting site because I need to transition my site to a free service. Currently I'm Mon, 29 Jun 2009 03:44:01 GMT tsulmer1 http://tech.groups.yahoo.com/group/atm_free/message/14159 http://tech.groups.yahoo.com/group/atm_free/message/14159 Hi Mark, Excellent call! I never thought to question whether Venus was actually Venus. Good on yah. Tim Mon, 29 Jun 2009 01:25:14 GMT James Takac http://tech.groups.yahoo.com/group/atm_free/message/14158 http://tech.groups.yahoo.com/group/atm_free/message/14158 Hi Jack Well, it's the size of a coriander seed using an SR4 lens, 76mm mirror, and a 114mm aperture, 900mm focal length. I'm roughly 27'S and 149'E. About Mon, 29 Jun 2009 01:15:32 GMT James Takac http://tech.groups.yahoo.com/group/atm_free/message/14157 http://tech.groups.yahoo.com/group/atm_free/message/14157 Hi Mark Then I didn't do bad guessing the magnitude it seems. That sketch was redone via this laptop and a simple paint program. So I gather Venus will be even Mon, 29 Jun 2009 01:08:25 GMT jacques savard http://tech.groups.yahoo.com/group/atm_free/message/14156 http://tech.groups.yahoo.com/group/atm_free/message/14156 ((((((((Venus is ever visible around Midnight ))))))))) here aver 60' north it is but it not his case he do not said where is was at what time he obsreve whit Mon, 29 Jun 2009 01:03:45 GMT James Takac http://tech.groups.yahoo.com/group/atm_free/message/14155 http://tech.groups.yahoo.com/group/atm_free/message/14155 Hi Mark Thx. Then it's been Jupiter I've been viewing and not Venus. I assumed Venus being so bright and all. And that'd be right. Venus gets up just after I