wobby83 Posted March 7, 2012 Share Posted March 7, 2012 hi just been outside with telescope and moon looked awsome , i pointed to mars and it just seemed to look like a tiny blip no different to looking with out a skope, was useing vixen npl 15mm and 8mm with and without a crap barlow , think i pointed at jupiter and that was same ,is this normal? thoughrt i should see them better took these with iphone By wobby82 at 2012-03-07 By wobby82 at 2012-03-07 Link to comment Share on other sites More sharing options...
Brantuk Posted March 7, 2012 Share Posted March 7, 2012 To see a decent amount of detail on Jupiter you need to be around 150x to 180x magnification. Mars is a much smaller object and is very close to the moon so it will be washed out with light a fair bit. To work out your magnification dived the scope focal length by the eyepiece size to see what you're getting. Link to comment Share on other sites More sharing options...
wobby83 Posted March 7, 2012 Author Share Posted March 7, 2012 This is the spec and I was useing a 15mm and 25 mm Review: Sky Watcher Heritage 130P FlexTube reflector telescope Magnifications (with optics supplied): x26, x52, x65, and x130 Highest Practical Power (Potential): x260 Diameter of Primary Mirror: 130mm Telescope Focal Length: 650mm (f/5) Parabolic Primary Mirror Eyepieces Supplied (1.25"): 10mm & 25mm x2 Barlow Lens (see offer above) Red Dot Finder Single-arm Secondary Mirror Support Wooden Alt-Azimuth Mount with Collapsible/ Extendable Tube Assembly Overall maximum height: 46cm (collapsed), 69.5cm (extended) Weight Approx 6.2kg Built-in Carrying Handle 30% more Light Gathering than 114mm Link to comment Share on other sites More sharing options...
Guest Eddy Posted March 7, 2012 Share Posted March 7, 2012 with the 15mm you'll be getting 43x I think, with the barlow, double that, so 86, you probably want a bit more and as Kim said, moon at the moment will wash a lot of it out on planets Link to comment Share on other sites More sharing options...
Brantuk Posted March 7, 2012 Share Posted March 7, 2012 An f-5 scope ain't so forgiving on the lower quality eyepieces and barlows. A good barlow like the Tal 2x would probably help a lot with your 8mm eyepiece. See if you can borrow one at a meeting to try it out and see what you think (You'd get 162x magnification with the Tal and 8mm) Link to comment Share on other sites More sharing options...
wobby83 Posted March 7, 2012 Author Share Posted March 7, 2012 Ok I've just orderd the tal x2 so I'll see what happens with that now at least I have a bit of an idea now thanks Link to comment Share on other sites More sharing options...
Brantuk Posted March 7, 2012 Share Posted March 7, 2012 Ok - but beware the seeing - it'll need to be good - don't forget when you magnify an object you also magnify atmospheric imperfections. You want a clear sky with good transparency - the scope must be cooled for half an hour first - ensure your eyes are dark adapted - check collimation is spot on (do a star test to check focus and collimation) - and keep your fingers crossed lol Link to comment Share on other sites More sharing options...
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