Search found 136 matches

by Earthshine
Tue May 13, 2008 11:43 am
Forum: Astrophysics
Topic: Some swans are grey !
Replies: 10
Views: 4447

Hi all, I have to admit that sometimes I am not too sure what can be described as a 'definite fact' and what is a plausible theory. For example, in astronomy you can say that the Moon orbits the Earth (although I was reading somewhere about how quantum physics says it is only very probably going to...
by Earthshine
Sun May 11, 2008 9:56 am
Forum: General chat
Topic: SAD PORN HACKERS !!
Replies: 29
Views: 6671

Another one appeared this morning. I wonder whether this has something to do with the fact that the sub-forum name has the word 'chat' in it. The people are probably searching for chat rooms/forums and its ending up here, as well as countless others. Is it not possible for the admins to put a filter...
by Earthshine
Sat May 10, 2008 7:53 pm
Forum: Telescopes and instruments
Topic: Eyepiece Choice - I can't make up my Mind
Replies: 4
Views: 1973

I'm going for an 8mm Tele Vue Plossl for use with my PST.

I will invest in a Hyperion, possibly a 24mm one for use with my SW200 in the future.

Thanks for the advice :)
by Earthshine
Fri May 09, 2008 6:29 pm
Forum: General chat
Topic: 2 Days Sunshine on the trot....
Replies: 5
Views: 1511

Re: 2 Days Sunshine on the trot....

RoCkHoPpEr wrote:Has any one noticed if the sun is getting bigger.......?

JuSt WoNdErInG

RoCkHoPpEr
If anything, it should be getting smaller :? :wink:
by Earthshine
Wed May 07, 2008 11:17 am
Forum: Telescopes and instruments
Topic: Celestron Eyepieces
Replies: 8
Views: 2835

They are indeed made by Baader. So are Baader part of Celestron, or have we just moved on to Baaders? I am really interested in the 8mm Hyperion, especially since you can reduce the focal length of them by adding filters or special rings. :D Eclipse, do you ever use your Hyperion with your PST? Is ...
by Earthshine
Tue May 06, 2008 6:11 pm
Forum: Telescopes and instruments
Topic: Suggestions for upgrade to 6" Newtonian
Replies: 2
Views: 1046

Eyepieces are all-important if you want decent views. Upgrading to a 200 from a 150 will only gain for you if you want to see more stars in deep field views (it will give you more light grasp). However, you won't gain in your planetary viewing much. A good refractor will be better for this, and it w...
by Earthshine
Mon May 05, 2008 8:12 pm
Forum: Telescopes and instruments
Topic: Eyepiece Choice - I can't make up my Mind
Replies: 4
Views: 1973

Eyepiece Choice - I can't make up my Mind

I have decided that I want to keep my Explorer 200, but I have not yet invested in any decent eyepieces. I also now have my Coronado PST that came with a 20mm standard kellner eyepiece. I have used my SW 10mm EP with it, but although I see good detail, I feel it needs something better. Eclipse has r...
by Earthshine
Fri May 02, 2008 8:49 pm
Forum: Telescopes and instruments
Topic: Celestron Eyepieces
Replies: 8
Views: 2835

Are Hyperion not made by Baader?
by Earthshine
Thu May 01, 2008 11:35 am
Forum: Classifieds
Topic: Second hand telescopes/equipment
Replies: 6
Views: 3472

You're not a member of WDAS (West Didsbury Astronomical Society) are you? 8) I have a Skwatcher 8" reflector on an HEQ5 equatorial mount and tripod, which is motorised but without the Goto, but the Goto is available separately for this mount. This is the package. I also got it from Rother Valley Opt...
by Earthshine
Thu May 01, 2008 11:31 am
Forum: Absolute beginners
Topic: What does 1/4 wave optics mean?
Replies: 4
Views: 2309

It's to do with how 'flat' the mirror has been manufactured and its based upon how far out optically, a reflected light wave is when brought to focus (or something like that).

The smaller the number the better the optics i.e. 1/4 is worse than 1/8 which in turn is worse than 1/10
by Earthshine
Wed Apr 30, 2008 11:49 am
Forum: Telescopes and instruments
Topic: Celestron Eyepieces
Replies: 8
Views: 2835

Yep. As with anything, you get what you pay for. Their new X-CEL series plossls look nice.
by Earthshine
Thu Apr 24, 2008 8:14 pm
Forum: Astrophysics
Topic: Secrets of Black Holes
Replies: 14
Views: 5185

Hi, Yes I get the gist :) Who is viewing the underneath of the plughole :wink: Dave Hi Earthshine, Sorry if my reply seemed to be a bit flippant :) What I meant was what is on the other side of a black hole (via the wormhole). and what does the sucked in energy creat when it comes out via the white...
by Earthshine
Thu Apr 24, 2008 6:47 pm
Forum: Astrophysics
Topic: Secrets of Black Holes
Replies: 14
Views: 5185

I'm sure many people get confused when they read these to seemingly contradictory statements when there's not really an explanation why this monster vacuum cleaner sucks and blows at the same time. these celestial monsters which vacuum up almost everything in their path, even light. spewing out pla...
by Earthshine
Thu Apr 24, 2008 11:35 am
Forum: Telescopes and instruments
Topic: Meade Variable Barlow 2x - 3x
Replies: 1
Views: 1058

Meade Variable Barlow 2x - 3x

I just spotted that meade do a variable 2x to 3x barlow.

Has anyone got one of these? How does it perform?

http://www.telescopeplanet.co.uk/ViewPr ... N03K000040
by Earthshine
Tue Apr 22, 2008 6:41 pm
Forum: Telescopes and instruments
Topic: Should I sell my Reflector?
Replies: 14
Views: 4106

Hello If you can afford to purchase the NX6SE SCT without selling the 8" Newt, I'd suggest that as the best route to take. As someone who had an 8" Newt, sold it it, then bought a Meade ETX 125, (an absolutely superb instrument though), found that I really missed the larger aperture and it's abilit...