|
|
Gordon Thomson is delighted to be a sponsor of Dalgety Bay Astronomy Club.
Gordon Thomson provides architectural services for all types of building projects e.g. house extensions, attic conversions and alterations to property.
Based locally in Rosyth, Gordon can be contacted on (01383) 410202 or 07775692024.
| View previous topic :: View next topic |
| Author |
Message |
bwh
Joined: 06 Feb 2007
Posts: 95
Location: Dalgety Bay
|
 Posted: Jan 01 19:16 Post subject: 2007 Mars - closest approach |
 |
|
Spent few nights looking at mars with 5inch refractor and 8inch SCT
also with aid of 5x powermate televue barlow.
The 5inch gave clearest views - and while mars small (even at closest approach) - could see that surface was mottled red with black blotches... sadly no canals.
The 5 inch does not require collimation so setup easy, but no tracking (skywatcher - there is a rq drive in canada - but they only sell to canadian credit card addresses... doh)
My 8inch generally needs collimation to get best performance, and so while this has 40% more light, its yet to provide better results that 5inch.
so bigger not allways better (guess 8inch better for dso)
_________________
bwh
Meade 8inch (228mm) LX5 Smidt-Cassegrain fl=2000
Skywatcher 120mm Refractor fl=1000m
Toucam Pro II 840k |
|
| Back to top |
|
 |
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
FAQ
Search
Memberlist 
Usergroups 
Join! (free)
Profile
Log in to check your private messages 
Log in
