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#1
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Hi *,
I'm considering upgrading my old EQ5 which came with my C8 with GOTO capabilities and I'm almost set for a Skysensor 2000-PC (I'd love a Celestron CGE or a Losmandy but not for now ![]() Now the big question is where to find the toy (at a decent price, of course). I found a couple of potential sources around USD1200 but with no immediate availability. Is there a shortage or something similar? Do you happen to know where I could buy it, preferable online, within a fair timeframe? Bonus question for existing users: is the 'PC' option worth the delta or could you live without it? Thanks in advance. -- Frédéric |
#2
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Fred wrote:
Hi *, I'm considering upgrading my old EQ5 which came with my C8 with GOTO capabilities and I'm almost set for a Skysensor 2000-PC (I'd love a Celestron CGE or a Losmandy but not for now ![]() Now the big question is where to find the toy (at a decent price, of course). I found a couple of potential sources around USD1200 but with no immediate availability. Is there a shortage or something similar? Do you happen to know where I could buy it, preferable online, within a fair timeframe? Bonus question for existing users: is the 'PC' option worth the delta or could you live without it? Thanks in advance. Consider the Celestron CG5 Advanced Series GT mount. It seems to have accurate aiming capabilities provided it heads off in the correct direction (I've seen it fail this a couple of times), and there's an optional accessory that provides an auxiliary port, hand controller port, and serial port for Nexremote (formerly HC Anywhere) PC control. It also has an autoguider port on the main controller board which is mounted on the RA axis. I just did a transplant of the complete GoTo system to my Vixen GP. I _finally_ got it out for a trial run thanks to a break in the clouds the other night, and the accuracy was identical to the CG5. Using just a quick centering of Polaris in the polar scope, and rough centering of the alignment stars in a 1 degree TFOV eyepiece, all objects were off center in the same location, but within the field of view. The next ideas: remote control aiming correction using the Meade DSI as a field star imager autoguiding with the Meade DSI remote focus of a DSLR |
#3
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Why you had to move the goto to your GP mount?
Not happy with the Celestron GT? All these cheap goto systems, that Mead or Celestron makes uses standard DC motors, vs. SS2K use stepping motors, lot more accurate. For example, I can be over 100x power or more and slew from one object to another and they all come into my eyepiece field view. SS2K even locate objects on the Moon, after proper alignment, controler has the database too. I owned LX200 and Nexstars, but I'm very impressed with the SS2K. There is the reason for the high price and demand for the SS2K. FCC killed it off here in the US. Julius "Stephen Paul" wrote in message ... Fred wrote: Hi *, I'm considering upgrading my old EQ5 which came with my C8 with GOTO capabilities and I'm almost set for a Skysensor 2000-PC (I'd love a Celestron CGE or a Losmandy but not for now ![]() Now the big question is where to find the toy (at a decent price, of course). I found a couple of potential sources around USD1200 but with no immediate availability. Is there a shortage or something similar? Do you happen to know where I could buy it, preferable online, within a fair timeframe? Bonus question for existing users: is the 'PC' option worth the delta or could you live without it? Thanks in advance. Consider the Celestron CG5 Advanced Series GT mount. It seems to have accurate aiming capabilities provided it heads off in the correct direction (I've seen it fail this a couple of times), and there's an optional accessory that provides an auxiliary port, hand controller port, and serial port for Nexremote (formerly HC Anywhere) PC control. It also has an autoguider port on the main controller board which is mounted on the RA axis. I just did a transplant of the complete GoTo system to my Vixen GP. I _finally_ got it out for a trial run thanks to a break in the clouds the other night, and the accuracy was identical to the CG5. Using just a quick centering of Polaris in the polar scope, and rough centering of the alignment stars in a 1 degree TFOV eyepiece, all objects were off center in the same location, but within the field of view. The next ideas: remote control aiming correction using the Meade DSI as a field star imager autoguiding with the Meade DSI remote focus of a DSLR |
#4
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It turns up on AstroMart or Ebay used some times, you have to keep your eyes
opes. I got mine on AM for $750 over a year ago, works great. Julius "Fred" wrote in message ... Hi *, I'm considering upgrading my old EQ5 which came with my C8 with GOTO capabilities and I'm almost set for a Skysensor 2000-PC (I'd love a Celestron CGE or a Losmandy but not for now ![]() Now the big question is where to find the toy (at a decent price, of course). I found a couple of potential sources around USD1200 but with no immediate availability. Is there a shortage or something similar? Do you happen to know where I could buy it, preferable online, within a fair timeframe? Bonus question for existing users: is the 'PC' option worth the delta or could you live without it? Thanks in advance. -- Frédéric |
#5
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Szaki wrote:
Why you had to move the goto to your GP mount? Not happy with the Celestron GT? I didn't "have" to move the GoTo to the GP. The price on the AS-GT mount was too good to resist, and having the GP, I figured why use the clone when I can use the original? All these cheap goto systems, that Mead or Celestron makes uses standard DC motors, vs. SS2K use stepping motors, lot more accurate. For example, I can be over 100x power or more and slew from one object to another and they all come into my eyepiece field view. SS2K even locate objects on the Moon, after proper alignment, controler has the database too. Well, like I said, "if the Nexstar system will meet your needs." If you have an EQ5/CG5 with clock drive, you can pick up an AS-GT for $600 (say), sell your current CG5 and clock drive for $250, and get the GoTo, and that lovely 2" steel leg tripod, for $350. The cost of the SS2K is going to run between $750 and $1100. If you can justify that expense. Go for it. :-) Regards, Stephen |
#6
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![]() "Stephen Paul" wrote in message ... Szaki wrote: Why you had to move the goto to your GP mount? Not happy with the Celestron GT? I didn't "have" to move the GoTo to the GP. The price on the AS-GT mount was too good to resist, and having the GP, I figured why use the clone when I can use the original? All these cheap goto systems, that Mead or Celestron makes uses standard DC motors, vs. SS2K use stepping motors, lot more accurate. For example, I can be over 100x power or more and slew from one object to another and they all come into my eyepiece field view. SS2K even locate objects on the Moon, after proper alignment, controler has the database too. Well, like I said, "if the Nexstar system will meet your needs." If you have an EQ5/CG5 with clock drive, you can pick up an AS-GT for $600 (say), sell your current CG5 and clock drive for $250, and get the GoTo, and that lovely 2" steel leg tripod, for $350. The cost of the SS2K is going to run between $750 and $1100. If you can justify that expense. Go for it. :-) Don't have to go for it, all ready have. (o: When I started out in Astronomy use to do the same, swap parts, fix this, change that, ATM parts, just too time consuming. I buy quality and be a happy camper. If I don't want it, sell it. I use to own a CG-5, sold it very quick. Seems, you're still experimenting. Julius |
#7
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![]() "Szaki" wrote in message ... All these cheap goto systems, that Mead or Celestron makes uses standard DC motors, vs. SS2K use stepping motors, lot more accurate. The SS2K is a nice system; I used one on an Atlas for a while. Like the my LXD75 and my CG5-GT, it gave the kind of accuracy you describe. Steppers aren't one of the advantages of it, though. They are just another way of achieving controllable motion. There's no reason why a stepper should be more accurate than a servo of similar resolution. Remember that the Meade and Celestron forkmounts are far more precise than any of the above, and they use servos. John C |
#8
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Thanks all for your comments. I'll dig into this and make my mind.
Clear skies. -- Frédéric |
#9
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Szaki wrote:
"Stephen Paul" wrote in message ... Szaki wrote: Why you had to move the goto to your GP mount? Not happy with the Celestron GT? I didn't "have" to move the GoTo to the GP. The price on the AS-GT mount was too good to resist, and having the GP, I figured why use the clone when I can use the original? All these cheap goto systems, that Mead or Celestron makes uses standard DC motors, vs. SS2K use stepping motors, lot more accurate. For example, I can be over 100x power or more and slew from one object to another and they all come into my eyepiece field view. SS2K even locate objects on the Moon, after proper alignment, controler has the database too. Well, like I said, "if the Nexstar system will meet your needs." If you have an EQ5/CG5 with clock drive, you can pick up an AS-GT for $600 (say), sell your current CG5 and clock drive for $250, and get the GoTo, and that lovely 2" steel leg tripod, for $350. The cost of the SS2K is going to run between $750 and $1100. If you can justify that expense. Go for it. :-) Don't have to go for it, all ready have. (o: When I started out in Astronomy use to do the same, swap parts, fix this, change that, ATM parts, just too time consuming. I buy quality and be a happy camper. If I don't want it, sell it. I use to own a CG-5, sold it very quick. Seems, you're still experimenting. Julius Just to clarify, I was addressing you and the OP at the same time. I'm glad you are happy with the GP/SS2K setup, as I am happy with the GP/AS-GT setup. The OP has an EQ5/CG5, and is looking for SkySensor. I'm just suggesting that he consider the CG5 with GoTo as a replacement for his current mount. It is a much less expensive alternative to SS2K, the GoTo is accurate, and the 2" steel leg tripod is a lot more stable than any aluminum or 1" steel leg tripod. It is even more stable than the wood legs that came with my Celestron branded GP mount. For someone with a GP, a transplant of the GoTo is possible, as I have shown. I only wish I could offer tracking error data, with differences between the MT-1, and the Celestron GoTo RA drive. Stephen Paul |
#10
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![]() "John" wrote in message ... "Szaki" wrote in message ... All these cheap goto systems, that Mead or Celestron makes uses standard DC motors, vs. SS2K use stepping motors, lot more accurate. The SS2K is a nice system; I used one on an Atlas for a while. Like the my LXD75 and my CG5-GT, it gave the kind of accuracy you describe. Steppers aren't one of the advantages of it, though. They are just another way of achieving controllable motion. There's no reason why a stepper should be more accurate than a servo of similar resolution. Remember that the Meade and Celestron forkmounts are far more precise than any of the above, and they use servos. John C Fork mounts has large worm gears, maybe 3x larger than the GP mount has, may be that's why. I owned a fork mount LX-200, was OK, you stuck with the same tube though, so I prefer EQ mounts for many reasons. I didn't own these newer EQ mounts from C or M you talking about, so I can't compare them to the SS2K, which has been out 4-5 years or so. I'm happy with the quality and accuracy of the SS2K . Julius |
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