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Skymax 127?


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Dear all

 

I have developed a bit of an interest in double stars. I currently use the ubiquitous ST80 with an AZ5 mount. I also have a 130/900 Newtonian with and EQ2 mount but I hardly ever use that as the skies here seldom stay clear for long and it's more of a faff to set up. I was wondering if a SM 127 might be a good "best" scope as it should work on my AZ5 mount (the SM150 looks to be a bit too heavy as I have the lighter tripod). Interests are visual and no Goto.

Edited by Richard N
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12 minutes ago, etsatlo said:

Have you attempted to mount your Newtonian on the AZ5 at all? That would be my first call before purchasing anything new given the similar aperture

Good idea. I have not tried that. I think the weight is okay but I would need some new rings. One thing that I like about the refractor (and would apply to the Mak) is the comfortable sitting position for viewing. It is possible to get this withthe Newtonian of course but less easy.

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If the 130/900 is any good, the 127mm Mak will not be an advance for double stars.  That said, the 127Mak is a fine instrument that will work well on double stars, but you need good eyepieces, not the tat supplied as starter eyepieces.

I would suggest you re-mount the Newtonian anyway so you are encouraged to use it more.

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4 hours ago, Richard N said:

Dear all

 

I have developed a bit of an interest in double stars. I currently use the ubiquitous ST80 with an AZ5 mount. I also have a 130/900 Newtonian with and EQ2 mount but I hardly ever use that as the skies here seldom stay clear for long and it's more of a faff to set up. I was wondering if a SM 127 might be a good "best" scope as it should work on my AZ5 mount (the SM150 looks to be a bit too heavy as I have the lighter tripod). Interests are visual and no Goto.

Key phrase in there for me which sounds warning  in a query about a mak is " skies here seldom stay clear for long "

I know exactly what you mean ,  and taking advantage of brief cloud-gap opportunities is one of the main reasons why I bought a refractor, first an ST80, but now upgraded to a (still cheap) 102mm apo.  I have a 127 mak, it's lovely for views of the Moon & planets, but I've put it outside to cool  many times, and found I've had to bring it back in because the clouds swarm in before the view-destroying thermal currents in the tube die down. My 127 needs a minimum of half an hour outside to cool before use.  On the plus side, mine is held nicely on my AZ5, so that shouldn't be a problem if you decide on the 127 (well, apart from the dovetail rail on the OTA version being under the mak tube, so to have the finder shoe in a sensible place, I have to mount the mak the 'other' way round on the arm, which has inconveniences of it's own ... )

If your viewing sessions are typically shorter than an hour, unless you have  some cold but sheltered place to store the mak ready cooled, I'd suggest a refractor would probably suit you better. I'm not particularly interested in double star observing , so can't say which refractor would suit that particular target best though !

Heather

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