Selling Astrosky 11" f/5 dob - one and only offer

wucheeyiun · Post by **wucheeyiun** » Tue Dec 05, 2006 10:07 am

Good buy Richard....good bonus put to excellent use

upzzz to Vincent

You want to bring to lim chu kang 1a to test it out?

river · Post by **river** » Tue Dec 05, 2006 10:08 am

can you all imagine Astrosky 11" f/5 truss tube + human GOTO at Mersing?!!

mrngbss · Post by **mrngbss** » Tue Dec 05, 2006 10:08 am

Congrats Richard for having a beautiful and great toy. Thanks (in advance) for sharing with us!

ariefm71 · Post by **ariefm71** » Tue Dec 05, 2006 10:28 am

Astrosky 11" f/5 truss tube + human GOTO at Mersing?!!

Another great combo!
Richard, if the mirror box is 19"x19"x19", you MIGHT be able to use the structure for your 15" mirror. Just replace the UTA with a bigger one.

Arief

Canopus Lim · Post by **Canopus Lim** » Tue Dec 05, 2006 10:51 am

I THINK it may not be able to fit because the Obsession 15 inch has minimum width of 21 inch and it has the smallest box out there. That is considering size only. There may be mechanical issues that has to be addressed; perhaps the tailgate and mirror support has to be changed because a 15 inch is significantly larger than the 11 inch. However, maybe some modifications to the box will allow a 15 inch mirror to fit and be held stable on the mirror cell.

Post by **VinSnr** » Tue Dec 05, 2006 11:05 am

kayheem wrote:Yup...no mistake. That is VinSnr's pricing all right! Better than any Great Singapore Sale price all year round!

Hey Vin, why not mount it on a tracking platform? You can still do video astronomy with it.

Thought about it, but a few difficulties which I find is a hassle. First of all, due to the height of the scope, the cables to the video camera will be all over the place. I might even have to extend the length of the cables. Secondly, the Mallicam Hyper colour comes with a reducer and according to the manufacturer, newtonian scopes may not have enough in-travel focus for the reducer to work. Still an SCT is best for this kind of work.

I still believe that scope like this one is meant to be appreciated in alt-azi mode. And it is a good scope to tinker about since you can modify anything with it. I also like the fact that the ground board is round, unlike some scopes which use triangle ground board. A round ground board can be use immediately if you wish to add things like Servo Cat or DobDriver 2 in the future. A triangle ground board will have to be dump away if you intend to go that route.

Post by **VinSnr** » Tue Dec 05, 2006 11:07 am

rlow wrote:Oh, its very beautiful! Ok, I will take it and share this with everyone at Mersing! Do you mind to deliver it to my place? Thanks!

Where you stay? Can deliver la no problem.

kingkong · Post by **kingkong** » Tue Dec 05, 2006 12:30 pm

note to self: must join rlow for obs in mersing again soon. remember not to bring clouds & rain...

rlow · Post by **rlow** » Tue Dec 05, 2006 12:41 pm

Richard, if the mirror box is 19"x19"x19", you MIGHT be able to use the structure for your 15" mirror. Just replace the UTA with a bigger one.

Yes I did consider that! See how later.

Vincent, I have PM you my address. Thanks!

MooEy · Post by **MooEy** » Tue Dec 05, 2006 7:04 pm

newtonian scopes may not have enough in-travel focus <==y not shift the mirror up or get shorter truss tubes?

for my portaball, it's pretty easy to shift the mirror up and down to accomodate all my eyepieces.

~MooEy~