... Er. Area og 11" primary = pi* (5.5^2) = 95 square inches. Area of 9.25" primary = 67 square inches. Increase is over 41% (actually very slightly more,...
... No, you didn't. There was never a 4" SCT Nexstar marketed by Celestron or by Tasco. There was a 4" Maksutov-Cassegrain Nexstar which was imported by...
Hi Wanax, You might want to consider a used Meade LX90. It will offer performance head and shoulders above the 5" scopes and still fit your budget. Hope this...
Hi all, So the million dollar question is... Is it worth it for someone who lives in the light polluted W. suburbs of Chicago to pay the extra money to go from...
You didn't say whether this is your first serious scope. If it is, an 8" will keep you happy for several years. I used a C8 for ~20 years before moving up...
... Hi: Exactly. If you must deal with light pollution, ALWAYS go for more aperture. That said, a C8 is capable enough that many observers never outgrow it. I...
Yes - first serious scope. I have a Nexstar 114GT and I get pretty good viewing on dark nights looking West away from the glow. I just got an email with this...
... Hi: Only you can answer this question. The 8 can do pretty well in light pollution, but the 11 is certainly better. IN FACT...I'd say that the difference...
OK - I am sold... I'll try and be patient until I have the money for the 11. I don't know why I keep wondering this. Everyone with any real knowledge keeps...
Hi The 4 inch is a Mak, not an SCT, and is not made in the US. Also known as the "baby" Nexstars. There is a short tube 80 version, a 114mm short tube newt...
... Hi Timm, Since you live in light-polluted area, you may not be able to see very many DSO's, even with a C11 (although clearly, the C11 will bring more in...
Some others have mentioned the upsides. The only real downside is that the C8 is a trivial load for setting up. However, the 9.25 and the 11 (they are very...
Chinese mirrors : These used to be readily available at dealers like GaryHand's, Hands-On-Optics. I picked up a 12" f5 mirror there. It was one of the last! ...
Hi Timm, Before you make any decisions, you may wish to take a look through my C-11 in Hampshire (on those rare occasions when I don't have a camera mounted)....
Wow - people on these groups are so nice (most of the time). That still amazes me daily. Thanks for the offer Dennis. Hampshire isn't really that far from...
... construction ... And they aren't all that expensive. Two reasonably-good machinist's levels can be seen here: <http://www.grizzly.com/> and enter either...
... wrote: The ... Now I'm really lost. What is a Newton-Cassey? I don't understand the bit about the SCT's "probably" being made in the US. They have been...
... From: "Timm Bottoni" <t.bottoni@...> To: <sct-user@yahoogroups.com> Sent: Wednesday, September 01, 2004 11:37 AM Subject: [sct-user] Re: C9.25 v....
Allan Mayer
SCTUSER@...
Sep 1, 2004 4:50 pm
70084
Hi, If you live in light polluted skies, you may want to consider portability. A C8 will be easier to transport and set up than a C11. I'm an old man with...
Hi Timm, I'd like to offer you a different perspective on the SCT upgrade trail. Right now, you own a Hamster (the 114GT). You can pick it up one handed and go...
I just learned from the Comets –ML group that the comet magnitudes as given in planetarium programs are subject to large errors. As I understand it, the...
In a message dated 9/1/04 10:58:39 AM Central Daylight Time, Ginahoy@... writes: Since you live in light-polluted area, you may not be able to see very...
Actually what is important is whichever is bigger, the CO or the hole in the primary. The celestron line of scts is not consistent on this point. I actually...
Well Tim I wouldn't wait. I don't know the numbers off the top of my head but let's say that a c8 on a go-to sells for $2200 and a C11 sells for $3200. You...
I agree. Climbing a learning curve is much easier when you are only excercising you brain, and not also exhausting your back at the same time. -John ... ...
Hi Timm, It's been ages since I posted on this list (reason at the bottom of my remarks). If the choice is between spending ALL your money on a C11 or SOME of...
Timm, If your budget is such that you won't be looking at beefier mounts for quite some time, then you really should stick with the C8 for now. I just don't...
... I wouldn't say _only_ astrometry, but that is the primary goal. The photometry is mostly useful for individual observatories to determine whether a given...
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