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bigdob · Big dobsonian telescope users.

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Group Information

  • Members: 2394
  • Category: Amateur
  • Founded: Jun 20, 2000
  • Language: English
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Messages 16567 - 16596 of 20391   Oldest  |  < Older  |  Newer >  |  Newest
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16567 pensack1 Send Email Mar 8, 2007
8:19 pm
That didn't work. Sorry. This one works: http://tinyurl.com/36vom2 Don Pensack ... site. ... to...
16568 szsherm Send Email Mar 9, 2007
4:40 pm
Come join us at the 2007 Shingletown Star party from July 9 -16, 2007! Located on an unused airstrip at an altitude of 4,000 feet in Northern California, this...
16569 rolandlinda3 Send Email Mar 10, 2007
1:51 am
Got it. Thanks. I can understand enough from the description and picture to design something close to that. rb ... web ... dob. It not ... bar if ... ...
16570 jcmulherin
jamesmulherin Send Email
Mar 11, 2007
2:31 pm
I've posted a discounted 20" F/5 blem on eBay. This is a nice mirror with a small chip on the front surface... http://tinyurl.com/2n2kgp James James Mulherin ...
16571 Robert Houdart
rhoudart Send Email
Mar 12, 2007
12:07 am
After the set-back with Optical Structures about 5 weeks ago, I have the pleasure to inform you that Mike Lockwood will take on the challenge to produce the...
16572 polaraligned Send Email Mar 12, 2007
11:28 am
Mike has the talent to make a good mirror. Tell us about the mirror substrate? Cellular? Monolithic? Don't know? Scott...
16573 Robert Houdart
rhoudart Send Email
Mar 12, 2007
6:06 pm
Hello Scott, ... It will be a cellular mirror, about 180 mm (7") thick - weight approx. 120 kg (260 lbs). Not the very lightest possible, but optimized for ...
16574 triblene Send Email Mar 13, 2007
12:39 am
I am a newbie to big dobs. I now have a 16 inch AstroSky Ed Steven's mirror Dob and want to know what is the best set of tools to help collimate it. I have...
16575 bmwbob Send Email Mar 13, 2007
1:25 am
I use one of the laser collimator with the target hole I can see while adjusting the primary mirror, but first I made sure the laser was adjusted. Need to make...
16576 pensack1 Send Email Mar 13, 2007
5:34 am
Tom, Get the TeleTube (sight tube), Black Cat (cheshire) and Infinity (autocollimator). In some circumstances, it's easier to have the 3 tools separate. But,...
16577 kyle_baron Send Email Mar 13, 2007
5:53 pm
That's exactly what I did about a week ago. Thanks for reinforcing my buying decision! I might add, that the 2" Holographic laser comes with the 1mm...
16578 soxboston22 Send Email Mar 13, 2007
11:25 pm
Hi all. I'm new to this group so I thought I would join and take in as much as I could about dobs in general. I currently own a 114mm Newtonian Reflector by...
16579 Attilla Danko
attilladanko Send Email
Mar 13, 2007
11:31 pm
Before you buy a bigger scope, it's usually a good idea to look through the likely candidates. A good way to do that is to hang out with the local astronomy...
16580 rolandlinda3 Send Email Mar 14, 2007
1:57 am
Colby, I love my truss tube Dob and most folks on this forum would probably tell you Dobs are great as well. I have some information that you may want to...
16581 soxboston22 Send Email Mar 14, 2007
4:15 am
Thanks for the tips -ad and Roland. I've definitely heard the advice that "your favourite scope is the one you use the most". As for what the future holds, I'm...
16582 burgman1 Send Email Mar 15, 2007
1:08 pm
Hi, The only advice I have is buy as larger of a primary mirror that you can afford. If you get really hooked on this your next scope will have a larger...
16583 Chuck M.
turandot0 Send Email
Mar 15, 2007
7:07 pm
You can always start out with a manual dob and add DSCs(digital setting circles) later - Orion's for ~ $150 for their XT scope line. I've used and recommended...
16584 stevereecy Send Email Mar 16, 2007
2:37 pm
Hey all, I have an F5, 12-inch GTO mirror on a homebuilt scope. I keep my scope on my backporch, and despite the fact that I keep it covered, from time to...
16585 prmo@...
prmtel Send Email
Mar 16, 2007
5:39 pm
Steve, Depending on the quality of your mirror and the amount of refiguring it needs (if any) the price can run to over $1,000 for a 12" mirror to as little...
16586 bigdob@yahoogroups.com Send Email Mar 16, 2007
11:49 pm
Enter your vote today! A new poll has been created for the bigdob group: Out of the comapnies below, which would you prefer when buying a dob of any size? o...
16587 Bob Bunge
bungerob Send Email
Mar 17, 2007
1:11 am
Would have personally liked to have seen a "homemade"; option, but I'm being picky. Bob...
16588 John Mahony
jmmahony Send Email
Mar 17, 2007
6:22 am
... Recoating doesn't significantly affect the figure, so if it was good when you got it you don't need it refigured. ... Spectrum Coatings...
16589 lou
louisdelsesto Send Email
Mar 17, 2007
7:47 am
This i shwre i go to have my mirror coated They do a very goo d job ,They are fast and good people. I hope this helps...Lou Research Service Co. 30 B Revere...
16590 William Schwittek
multifax Send Email
Mar 17, 2007
11:30 am
What, did Starmaster go out of business? - Bill ... of any size?...
16591 polaraligned Send Email Mar 17, 2007
1:45 pm
You may want to call Steve Dodds of Nova Optics. Not only is Steve a master optician, but he has done some very fine coating work for me. ...
16592 polaraligned Send Email Mar 17, 2007
1:49 pm
I think Starmaster, or Webster for that matter, should not even be put in the same sentence as some of those companies. Scott...
16593 Jeff Boege
jeffboege Send Email
Mar 17, 2007
2:44 pm
Or Starstructure! Jeff B. ... From: Polaraligned To: bigdob@yahoogroups.com Sent: Saturday, March 17, 2007 7:48 AM Subject: [bigdob] Re: New poll for bigdob I...
16594 astronomer_c Send Email Mar 18, 2007
11:46 pm
... As a previous poster remarked, if the figure is a good one, you don't need the mirror re-figured. To find out if you need re-figuring, conduct a "star...
16595 g_habas Send Email Mar 20, 2007
3:14 am
I'd like to get some opinions about the use/suitability of an eyepiece that I'm considering purchasing. I own a homebuilt 14" Dob (pictures are posted under...
16596 john martin
johnmsct8astro Send Email
Mar 20, 2007
5:10 am
i have an 18 in obsession with a right angle finder a telerad and a heater for my eyepieces. what kind of configuration can i make for my dob for dew...
Messages 16567 - 16596 of 20391   Oldest  |  < Older  |  Newer >  |  Newest
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