Thinking of getting a telescope

After some advice

Discuss celestial objects and phenomena outside the Earth's atmosphere.

Moderators: Darkchilde, Calilasseia

Thinking of getting a telescope

 
 

Thinking of getting a telescope

#1  Postby mattwilson » Nov 04, 2011 9:30 am

Me and my 7 year old would like to take up some astronomy and so seeing as though I'll have some extra cash this month and it's nearly christmyarse I thought it may be about time I got something.

I think I've found a decent telescope on fleabay but I have no idea if it actually is any good

Here's the spec
Aperture: 150mm
Focal Length: 1400mm (catadioptric system)
Faintest discernable stars: 13.8M! (over 5,650,000 Stars visible!!!)
Dawes Limit: 0.92 arc-seconds
Focal Ratio: 1:9
Eyepieces: 31.7mm (1.25“)
Magnification: PL 6,5mm/215x, PL 25mm/56x
Mount: equatorial mount
Weight: ~14kg
Extendable for astrophotography, usage of filters, etc. because of the 31.7mm (1.25“) accessory sockets

and it comes with this stuff
1x Plössl Eyepiece 31.7mm (1.25“) PL 6,5mm
1x Plössl Eyepiece 31.7mm (1.25“) PL 25mm
1x 1.5x Erecting Eyepiece 31.7mm (1.25“)
1x Moon Filter 31.7mm (1.25“)
1x Finder Scope 6x30
1x Equatorial Mount
1x Sturdy, vertically adjustable aluminium tripod

Does this sound like an okay setup?

Also what kind of thing could I expect to be able to see with a 150mm telescope? links to any comparable images would be great if you have them.

Also once I have the kit, are there any online sources which detail where I can look for particular things.

Cheers guys
Image
User avatar
mattwilson
RS Donator
THREAD STARTER
 
Name: Matt Wilson
Posts: 2399
Age: 31
Male

Country: The Earth

Re: Thinking of getting a telescope

#2  Postby chairman bill » Nov 04, 2011 9:57 am

I've got my youngest one of these for Xmas. I paid £29 from Amazon. They've gone up now, to £39 (went up 2 hours after I'd bought it in fact), but that's still pretty good value. Neat, compact, and seems pretty good quality. If he sticks with it, I'll upgrade, but for now ...
Image
Image
The truth may be out there, but the lies are inside your head. Terry Pratchett
User avatar
chairman bill
 
Posts: 12969
Male

Country: UK
United Kingdom (uk)

Re: Thinking of getting a telescope

#3  Postby mattwilson » Nov 04, 2011 10:14 am

I don't need to worry about him not sticking with it, this is more for me than him, he's just showing an interest. What I'm looking at I think is around £180
Image
User avatar
mattwilson
RS Donator
THREAD STARTER
 
Name: Matt Wilson
Posts: 2399
Age: 31
Male

Country: The Earth

Re: Thinking of getting a telescope

#4  Postby CarlPierce » Nov 04, 2011 5:05 pm

Only problem is the fact you really want a motor to track objects otherwise Jupiter will move across your view (especially on high mag) and you will need to move the scope constantly to follow it.

Great for looking at the moon.
CarlPierce
RS Donator
 
Posts: 1359
Age: 47
Male

United Kingdom (uk)

Re: Thinking of getting a telescope

#5  Postby The_Metatron » Nov 04, 2011 6:04 pm

Who made the kit? Any model numbers?
My blog, Skepdick.eu

"If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another." - Carl Sagan

Image
User avatar
The_Metatron
RS Donator
 
Name: Jesse
Posts: 5925
Age: 49
Male

Country: Belgium
United States (us)

Re: Thinking of getting a telescope

#6  Postby mattwilson » Nov 04, 2011 7:06 pm

The_Metatron wrote:Who made the kit? Any model numbers?

I've just checked out some reviews, it's a seben big boss. Apparently it's going to be shite :(. Going to read some more reviews
Image
User avatar
mattwilson
RS Donator
THREAD STARTER
 
Name: Matt Wilson
Posts: 2399
Age: 31
Male

Country: The Earth

Re: Thinking of getting a telescope

#7  Postby The_Metatron » Nov 04, 2011 7:48 pm

A Newtonian scope on a Dobsonian mount is a really good value. I sure do recommend a nice pair of large aperture binoculars on a parallellogram mount, though. More expensive than you mentioned, but much better for starting out and learning the sky.
My blog, Skepdick.eu

"If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another." - Carl Sagan

Image
User avatar
The_Metatron
RS Donator
 
Name: Jesse
Posts: 5925
Age: 49
Male

Country: Belgium
United States (us)

Re: Thinking of getting a telescope

 
 

Re: Thinking of getting a telescope

#8  Postby klazmon » Nov 06, 2011 9:01 pm

mattwilson wrote:Me and my 7 year old would like to take up some astronomy and so seeing as though I'll have some extra cash this month and it's nearly christmyarse I thought it may be about time I got something.

I think I've found a decent telescope on fleabay but I have no idea if it actually is any good

Here's the spec
Aperture: 150mm
Focal Length: 1400mm (catadioptric system)
Faintest discernable stars: 13.8M! (over 5,650,000 Stars visible!!!)
Dawes Limit: 0.92 arc-seconds
Focal Ratio: 1:9
Eyepieces: 31.7mm (1.25“)
Magnification: PL 6,5mm/215x, PL 25mm/56x
Mount: equatorial mount
Weight: ~14kg
Extendable for astrophotography, usage of filters, etc. because of the 31.7mm (1.25“) accessory sockets

and it comes with this stuff
1x Plössl Eyepiece 31.7mm (1.25“) PL 6,5mm
1x Plössl Eyepiece 31.7mm (1.25“) PL 25mm
1x 1.5x Erecting Eyepiece 31.7mm (1.25“)
1x Moon Filter 31.7mm (1.25“)
1x Finder Scope 6x30
1x Equatorial Mount
1x Sturdy, vertically adjustable aluminium tripod

Does this sound like an okay setup?

Also what kind of thing could I expect to be able to see with a 150mm telescope? links to any comparable images would be great if you have them.

Also once I have the kit, are there any online sources which detail where I can look for particular things.

Cheers guys



You may find an equatorial mount tricky to use if you are not familiar with them. You need to polar align them. In the Northern hemisphere, the relatively bright star Polaris can be used to align well enough for visual work. The most important thing with a mount is that it is rock solid steady. A wobbly mount becomes frustrating really fast.

Your description says that the OTA is a CAT but not what sort. Given that it is described as an F9 system it is most likely an SCT or some variant thereof.

Generally a six inch aperture scope should be very good for veiwing the moon, planets and star clusters. For nebula and galaxies, much depends on your sky conditions (rural versus city). In the city even very large scopes will have difficulty with objects having a low surface brightness such that the urban skyglow is brighter. You should be at least be able to see M42 (the orion nebula) as it has quite a high surface brightness compared to most.
User avatar
klazmon
 
Posts: 1533
Age: 102
Male

New Zealand (nz)


Return to Astronomy

Who is online

Users viewing this topic: No registered users and 1 guest