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Messages 85322 - 85351 of 134448   Oldest  |  < Older  |  Newer >  |  Newest
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85322
TT Policy Statement (Revised February 23, 2003) As a reminder of this group's desire to encourage all of its members to participate in a friendly and informed...
telescopes@yahoogroup...
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Sep 1, 2003
7:29 am
85323
... grasp. ... Hi John, I would have to concur with Geoff having used a LXD55 SN-10 for the 1st time last weekend. The SN-10 OTA weighs about 30 lbs and the ...
John Bambury
ausastronomer
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Sep 1, 2003
8:35 am
85324
All the dobs that I have seen have a circular area in which the bearings sit. My question is... can one use a vee cut instead of a circular one? And if so,...
billhepner
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Sep 1, 2003
8:53 am
85325
Hi Herm, sorry I was not more clear (wrote that shortly before hopping on a plane). I meant using a Reducer/Corrector with a refractor; here's your short post...
williamichang
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Sep 1, 2003
10:48 am
85326
Bill, Yes, absolutely. I once made a Dobsonian mount using V-shaped cutouts rather than that traditional semicircular cutouts for an 8- inch f/7 reflector,...
Phil Harrington
philip_harri...
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Sep 1, 2003
11:43 am
85327
Bob, Sounds to me as though the reticle transparency (that is, the piece of acetate that has the bull's-eye pattern on it) may have shifted. I don't have one...
Phil Harrington
philip_harri...
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Sep 1, 2003
12:03 pm
85328
... Hi Michael, Yes, as a matter of fact, I do mention this effect in Star Ware (page 221 in the third edition). I only comment on narrowband filters with ...
Phil Harrington
philip_harri...
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Sep 1, 2003
12:10 pm
85329
Can anyone report on the Guan Sheng 8" f/4 telescope? It comes on an equatorial mount, unlike the 8" f/6 which is a Dobsonian. I am especially interested in...
Szalma Zsolt
szalma_zsolt
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Sep 1, 2003
12:10 pm
85330
Is it possible to remove the factory installed primary mirror in a Newtonian and replace it with a custom made one? The different 8 inch scopes by Synta are...
Szalma Zsolt
szalma_zsolt
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Sep 1, 2003
12:10 pm
85331
Pascal, Welcome to Talking Telescopes. I hope you find it educational as well as informative. As to your Astroscan, that telescope's short focal length...
Phil Harrington
philip_harri...
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Sep 1, 2003
12:25 pm
85332
... The difficulty in seeing the south polar cap seems to be at the Mars end. It's shrunk almost in half in the last week. -- Geoff Gaherty Toronto Centre...
Geoff Gaherty
gahertyg
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Sep 1, 2003
1:04 pm
85333
Its procedure that is easy to do, if you have the skills. Figuring an optic has a minor effect on the focal length. Figuring is the polishing stage, where...
Barry Carter
rat8bug
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Sep 1, 2003
1:06 pm
85334
... I tested one of these as an optical tube only, and found it to have an exceptionally fine mirror, one of the few mass produced Newtonians I've seen which...
Geoff Gaherty
gahertyg
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Sep 1, 2003
1:12 pm
85335
... Phil, I was referring to page 218: "Many deep sky objects also shine in the deep-red hydrogen-alpha (656 nm) portion of the spectrum, a region that is all...
Michael Gilbreath
michaelgilbr...
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Sep 1, 2003
1:33 pm
85336
I like the Baader Moon & SkyGlow filter for planets... ... From: Michael Gilbreath To: telescopes@yahoogroups.com Sent: Monday, September 01, 2003 7:33 AM ...
Chuck Scappaticci
cscappaticci
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Sep 1, 2003
1:35 pm
85337
I have the same discontinued Orion very convenient (but pricey) sliding counterweights on my Meade 16" dob.I have 2(2.5 lbs.)weights for 50mm finder,Rigel,and...
pemulvogue
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Sep 1, 2003
1:56 pm
85338
Hi I have been a member if this group for some time now and posted my first message a few weeks ago but I didn't introduce myself (sorry). So, here I go. I...
Eric Morin
cc_emorin
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Sep 1, 2003
2:13 pm
85339
Hi, Being quite new at this, I'll give you what I can remember and maybe you can translate it for me. I was facing a bit South of West and the object was...
calstan2002
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Sep 1, 2003
2:21 pm
85340
In a message dated 9/1/03 7:11:25 AM Central Daylight Time, zsolo@... ... Hi: You could replace the primary, but there's no need to do that based on what ...
rmollise@...
rmollise
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Sep 1, 2003
2:31 pm
85341
Hello, How were these satellites identified ? I've been using heavens-above website but as soon as the satellite passes overhead the schedule usually no...
three-of-three-of-thr...
joe60609
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Sep 1, 2003
2:50 pm
85342
Hi I track satellites & down load the info drop, The program I use is call Satscape http://www.satscape.co.uk/ . I think its the best, free & simplest one I...
Peter Noakes
peter_noakes
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Sep 1, 2003
2:55 pm
85343
... under ... Eric, I have the Meade 18mm Super Wide Angle ep which I love. It's $149 at OPT (www.optcorp.com) Check them out Charles Griffin, Oden, ARK....
grifchar
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Sep 1, 2003
2:55 pm
85344
Group, It has been raining for some time, so it is a good time to ponder about hardware. The question is: Given that I am satisfied with 1-1/4" barrel, high- ...
grouptele
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Sep 1, 2003
2:57 pm
85345
... Eric, About the Expanse ep's, I have the ProOptic Ultrawides which are the same as the Orion Expanse. They have a 66^ AfOV but they're subject to...
cavalier17112
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Sep 1, 2003
3:37 pm
85346
How do I tell who made my scope? It is a 6" newt (Skyview Deluxe) from Orion. I got it in 2001 from Orion, on the SVD EQ mount. Is it Synta or Guan Sheng?...
Barbara Beardsley
salteeus
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Sep 1, 2003
3:48 pm
85347
In a message dated 9/1/2003 1:54:15 AM Pacific Standard Time, ... yes. I am no sure about the angle... I would guess the spacing of the pads as they contact...
rfclef@...
rfclef
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Sep 1, 2003
3:50 pm
85348
In a message dated 9/1/03 11:18:38 AM Central Daylight Time, ... Hi: Yes, this is a GS (as is the 6 inch on the same mount). Peace, Rod Mollise Author of...
rmollise@...
rmollise
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Sep 1, 2003
4:31 pm
85349
Well, I have returned from my first star party. ummm... WOW! My brain is never to clear, but I will try to share a little. The organizers have it set up...
Bobby
rfclef
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Sep 1, 2003
5:04 pm
85350
Brad, I sank my pier and built a deck around it. Most decks are built with joists on 24" centers. If yours is you might be able to lift a few planks and rent...
Peter K Rallis
pkrallis_99
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Sep 1, 2003
5:19 pm
85351
Can some of you veterans point me to a good ATM discussion group or two? The ones I've turned up on my own don't seem to be very active, and as I'm in the...
Jim Rosenstock
jrosenstock1
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Sep 1, 2003
5:25 pm
Messages 85322 - 85351 of 134448   Oldest  |  < Older  |  Newer >  |  Newest
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