Anyone owns a 12" or larger DOB?

ariefm71 · Post by **ariefm71** » Wed Apr 12, 2006 2:15 pm

since siaheng has a private rooftop, just build a simple sliding-roof permanent observatory la. no need to disassemble the scope after use.

jermng · Post by **jermng** » Wed Apr 12, 2006 2:39 pm

ariefm71 wrote:since siaheng has a private rooftop, just build a simple sliding-roof permanent observatory la. no need to disassemble the scope after use.

That's what I suggested to him last time, but his kids wanna play there ...

Siah Heng, just put a slide on one side of your observatory and maybe a see saw on the other side, can also include a mini rock wall for when they get older ... HAHA ... Best of both worlds ...

Canopus Lim · Post by **Canopus Lim** » Wed Apr 12, 2006 4:26 pm

I think the maid idea will be better; after all, maids now maintain man's toys like cars. haa.

Post by **VinSnr** » Wed Apr 12, 2006 5:17 pm

Canopus Lim wrote:I think the maid idea will be better; after all, maids now maintain man's toys like cars. haa.

Better tell the maid to leave the mirror alone. If she wipe it with window cleaner, that's it for the mirror.

Tachyon · Post by **Tachyon** » Wed Apr 12, 2006 5:18 pm

Heh... yeah.. and she may use old newspaper to polish the lens too!

ariefm71 · Post by **ariefm71** » Wed Apr 12, 2006 5:22 pm

It's a rumour, but probably true, they say Roland Christen uses his saliva to remove stains that can't be touched any other way. ("I spit on your objective!")

jermng · Post by **jermng** » Thu Apr 13, 2006 8:30 am

If anyone is interested, there is a 12.5" Obsession on CN for sale with the following:

1. ServoCat II Goto drive
2. Argo Navis with 10K encoders
3. Powered Ground Board
4. Feathertouch Focuser
5. Telrad
6. Nylon Light Shroud
7. Counterweight Kit
8. 98% Brilliant-Diamond Secondary Mirror with interferogram certification
9. Torus/OMI Primary mirror (#12-50)

for "only" US$5000.

That's an excellent price if you consider the Argo-Navis+Servo-Cat costs about $3400 ....

+you get a GOTO + tracking dob!!

If only I could afford that now.

ariefm71 · Post by **ariefm71** » Sun Apr 16, 2006 5:22 pm

probably the biggest ATM scope ever made.

Post by **weixing** » Sun Apr 16, 2006 6:05 pm

Hi,
Hmm... Is this a real one??

If yes, just wonder how they going to observe?? Are they going to fly up to observe or to use a crane?? And wonder how they going to track the object while observing?? May be shouting to the people below: "Counter Clockwise a bit!! Up a bit!!"

Anyway, I think using such a large dob in the dark should be one of the most hazardous activity in the Astronomy!!

Have a nice day.

neoterryjoe · Post by **neoterryjoe** » Sun Apr 16, 2006 6:12 pm

omg..the rocker box is even taller than a man! It is at least 2-3 stories high!