Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Rocket Pooch on Feb 22, 2009, 20:37:56

Title: Guiding last night
Post by: Rocket Pooch on Feb 22, 2009, 20:37:56
Mark & Mac,

Just to let you know the mount was guiding at .46 arc seconds adv...

Title: Re: Guiding last night
Post by: Mac on Feb 22, 2009, 23:13:48
 :o
Title: Re: Guiding last night
Post by: MarkS on Feb 23, 2009, 06:03:13

Wow - excellent!

Most of the time my guiding was in the range plus or minus 1 arcsec but with brief fluctuations out to 3 arcsec.

Mark
Title: Re: Guiding last night
Post by: Mac on Feb 23, 2009, 11:40:56
Well i just competly stripped and rebuilt my meade,
replacing all the plastic gears for some Stainless steel gears

http://www.petersonengineering.com/sky/buck's_std_gears.htm (http://www.petersonengineering.com/sky/buck's_std_gears.htm)

as well as upgrading the focuser bearings and the clutch from a wet to dry one.

So im looking forward to trying the scope out with these new gears to see if
this changes those weird image slips i was having.

I'll let you know what the guiding was like.

Might give astro art a bash.
Title: Re: Guiding last night
Post by: Rocket Pooch on Feb 24, 2009, 14:57:44
Mac,

If you use astro art when you calibrate if the guide image jumps around you need to increase the telescope speed, not lower it, seems odd when you use it but it works, also set the tolerance to 0 or it will assume x no of pixel drift, other than that it works fine.

Chris
Title: Re: Guiding last night
Post by: Mac on Feb 24, 2009, 17:23:41
i'll give it a go.
Cheers.