My homemade telescope...

Task Force · 10-26-09, 01:49 PM

Nice telescope... so what is its magnification?

SteamWake · 10-26-09, 02:19 PM

Quote:

Originally Posted by Task Force

Nice telescope... so what is its magnification?

Heh... the number one misconception about telescopes.

It all depends on which eye piece you put in. Eyepieces are as varied as the day is long my 'highest magnification' eyepiece is a 7.5mm vixen lanthium which gives and effective magnification of around 162x. At that magnification it is no small feat to keep the object centered in the eyepiece as it will corss the entire field of view in less than 10 seconds. Not to mention getting it centered in that narrow view to begin with.

My favorite eyepiece is the 28mm plossel (university optics). It has a nice field of view passes alot of light and has very little edge distortion thats around 37x and the object stays in the eyepiece for at least 20 seconds. Easier to chase.

It is an f8 at 6" which makes its focal lenght around 48" at that point the incoming start light is focused. Its up to the eyepiece to magnify that focused image.

Its easier to use the calculator web applet instead of going through alot of math...

http://www.csgnetwork.com/telescopemagcalc.html#

By the way it is easy to see jupitor and her moons through the 28mm with the 7.5 you can see the moons shadows on the planet

Not to mention the red spot.

Torplexed · 10-26-09, 07:53 PM

Nice instrument there Steamwake. I imagine you can capture some faint deep sky objects like galaxies and such with that when you set up somewhere rural.

I have an 8" Celestron, but it mostly lives in storage these days.

SteamWake · 10-27-09, 09:23 AM

Quote:

Originally Posted by Torplexed

Nice instrument there Steamwake. I imagine you can capture some faint deep sky objects like galaxies and such with that when you set up somewhere rural.

I have an 8" Celestron, but it mostly lives in storage these days.

Actually some deep sky objects are visible from my back yard Orion nebula is an easy one M31 aka andromida can be seen as a faint smudge but thats another easy one. A few clusters and such under the right conditions.

But I sure know how to bring the clouds and rain

works better than washing the car !.

Platapus · 10-28-09, 06:56 PM

All that work just to peek in your cute neighbour's window when she is changing clothes???

SteamWake · 10-28-09, 08:49 PM

Quote:

Originally Posted by Platapus

All that work just to peek in your cute neighbour's window when she is changing clothes???

Dont need a telescope for that. Binoculars work just fine

Torplexed · 10-28-09, 09:19 PM

Quote:

Originally Posted by SteamWake

Dont need a telescope for that. Binoculars work just fine

Really? I always tried to encourage cute gals to crawl right in.

10-26-09, 01:49 PM	#1
Task Force Rear Admiral Join Date: Jul 2008 Location: SPACE!!!! Posts: 10,142 Downloads: 85 Uploads: 0	Nice telescope... so what is its magnification? __________________ Task Force industries "Taking control of the world, one mind at a time"

10-28-09, 06:56 PM	#5
Platapus Fleet Admiral Join Date: Oct 2006 Posts: 19,362 Downloads: 63 Uploads: 0	All that work just to peek in your cute neighbour's window when she is changing clothes??? __________________ abusus non tollit usum - A right should NOT be withheld from people on the basis that some tend to abuse that right.

10-26-09, 07:53 PM	#3
Torplexed Let's Sink Sumptin' ! Join Date: Dec 2001 Location: Seattle, WA Posts: 5,823 Downloads: 43 Uploads: 0	Nice instrument there Steamwake. I imagine you can capture some faint deep sky objects like galaxies and such with that when you set up somewhere rural. I have an 8" Celestron, but it mostly lives in storage these days.