Orpington Astronomical Society

Astronomy => Technical => Topic started by: Rocket Pooch on Aug 23, 2010, 20:30:53

Title: At bloody last I have collimated the 8" F4 newtonian
Post by: Rocket Pooch on Aug 23, 2010, 20:30:53
Right,

This has been a complete nightmare, that scope was put together really badly so I've re-set all the mirrors and also the finder scope.

For some reason and I don't know why my laser collimator was well out, if you looked through the snout of the telescope and rotated the laser in situ it was drawing a nice circle about 60mm across.

Anyway, the laser got collimated after and hour and it took me another 30 minutes to get the scope close to collimated, now do I risk it and take it to France?


Hmmmmm...
Title: Re: At bloody last I have collimated the 8" F4 newtonian
Post by: mickw on Aug 23, 2010, 20:45:05
Quotemy laser collimator was well out

Didn't you use the Cheshire ?
Title: Re: At bloody last I have collimated the 8" F4 newtonian
Post by: Fay on Aug 23, 2010, 21:49:37
tell me about it, good job you are practicing now Rocket Pooch!
Title: Re: At bloody last I have collimated the 8" F4 newtonian
Post by: RobertM on Aug 23, 2010, 22:06:02
Quotenow do I risk it and take it to France?

or do you risk not taking it... decisions, decisions.... 

Title: Re: At bloody last I have collimated the 8" F4 newtonian
Post by: Tony G on Aug 23, 2010, 22:30:58
Quote from: Fay on Aug 23, 2010, 21:49:37
tell me about it, good job you are practicing now Rocket Pooch!

Chris,

You can always practice on mine :oops:..............I meant my 8" :oops:..................NEWTONIAN.
I hate when you write a perfectly innocent comment, and then have to alter, or change it, due to the calibre of persons on this forum. :lol:

Tony G

PS................My newt does need doing, Chris. ;)
Title: Re: At bloody last I have collimated the 8" F4 newtonian
Post by: Fay on Aug 23, 2010, 22:39:07
hope you are in garden practicing Tony!!!!!!
Title: Re: At bloody last I have collimated the 8" F4 newtonian
Post by: Rocket Pooch on Aug 23, 2010, 23:28:00
Hi Mick,

I could not use the Cheshire on this scope because the secondary is soooo big I could not see the thing properly, I'll return it.

Tony, yip we will have plenty of time to collimate the thing in France.

Chris
Title: Re: At bloody last I have collimated the 8" F4 newtonian
Post by: MarkS on Aug 23, 2010, 23:42:16

Collimated at last?  That's really good news.

I would take it because, otherwise, you might regret it.  If you don;t use it, you haven't lost anything.  However - take a test star field before you go just to check everything really is set up correctly - F4 is a pig to set up accurately.

Mark