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Posts posted by Lerxst

  1. cyborg, I have the 12" Synscan SW dob. The base with motors, weighs around 20 kg, I assume. Enough that I have to carry the dob outside in two rounds. :-)

    I don't know how familiar you are with star hopping, but I would say definiately go for the Synscan version. Aligning it is a breeze - I heard the Synscan controller was a bit more difficult to use than Celestron's GOTO controller, but I find the dob is much easier and quicker to align than my older Explorer 150PL on a CG5 equatorial mount.

    Plus, the 'guided tour' is phenomenal just to familiarize yourself with the scope and the sky.

  2. My Explore Scientific 14mm and 9mm 100° ep's are waiting for me at the post office.

    (naturally luck would have it that it's almost raining vertically today, after about a whole week of clear skies)

    I have a 12" dob, and I'm simply wondering: would I need a 3-6mm planetary ep when I can barlow the 9mm instead? Or are there certain drawback to barlowing high(er) res ep's on planets?

  3. I was initially dead set on the C9.25 and thought nothing would persuade me to chose different (except if the CG5 would handle a C11 well - which it doesn't), but the more thought I give on the subject, the more the 12" stands out as the sensible choice.

    dweller, I have a 6" now so a 8" would unfortunately not feed the aperture hunger that runs in me. :)

    I'd love a great and detailed view of the planets, but there are 8 of those and 40.000+ celestial objects (at least in the HC's databases), so in my opinion it would be foolish not to sacrifice some planet detail in favour of magnificent DSO's.

    Anyway, has noone else heard about any Sky-watcher GOTO difficulties on the dobsonians? If not, the decision is settled. :o

  4. However, the 9.25 which interests the OP will surely give great planetary views, though whether better than the Dob I know not. Our f4 Dob is not planetary but, for some reason, sometimes does very well on Jupiter. It's the colour that makes it - real brick reds in the belts.


    I also assume that the SCT has a narrower FOV? It seems like I will eventually land on the dob. I'm at 59°N, so taking that in account, planetary details may not even justify a SCT, given the amount of atmosphere that's in the way.

    By the way, what would M31 look like through the eyepiece of a 12"? A bright faint fuzzy or will I be able to see more details?

  5. Yeah, I simply cannot decide! Although the C9.25 personally has an edge over the 12", but this is simply due to it's elegant design and smaller footprint, while the dob is big, bulky and almost clumsy looking, in my opinion. Still, it's almost 3" more aperture, aargh...

    By the way, the C9.25 has a 1.25" star diagonal. Can it be fitted with 2"? And would a 2" eyepiece be beneficial if used with a 1.25" adaptor thingie?

  6. Both are within my price range, the 12" Sky-watcher dob with Synscan is actually cheaper than the C9.25 which I initially settled on, but I just bought the CG5 mount and hate the idea of trading it in already for a dobsonian.

    I will use it for backyard observation, no astrophotography, so portability and the imaging difficulties with dobs are no issue.

    However, for DSO's and planets, would I rather want the larger aperture dob over the C9.25?

    I know there's no such thing as the perfect telescope for everything, but what would you chose if you were me? I love the planets, but I would also be able to get a nice «detailed» view of i.e. M31, which now just look like a dark grey cotton ball in my F/8 6" reflector.

    Will a focal reducer give the C9.25 better and brighter views of DSO's?

    And I heard that Synscan is not as good as Celestron's GOTO. Any opinions on this?

  7. DSO's are your thing (and M31 in particular) then an F10 SCT is probably not the best choice, and not one on an average mount.. an F6.3 will help, but a wide and fast 12" to 14" goto dob would be better, F5, and more light grasp with larger aperture

    Oh no! More choices! :icon_salut:

    I get a 12" Skywatcher GOTO dob for the same price - are you saying this would be much more beneficial than the C9.25 - for both DSO's and planets perhaps?

  8. Thank you all for your usefull input.

    I will go for the C9.25 instead.

    And bizarrely enough, my employer will pay for it. I won't bore anyone with the details, but they went very quiet when I told them exactly what I wanted. I bet they expected me to say something like a new computer or a LED TV. :icon_salut:

    Still, nice employer, don't you think?

    A final question; two, actually:

    1. With visual observing, what can I expect of DSO's? With my F/8 reflector, M31 is so fuzzy it's possible to see that there's something there, but not much more than a faint, grey blob.

    If DSO's are my thing, which scope should I go for?

    2. Will a focal reducer help on DSO's as the C9.25 is a F/10?

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