Quote:
Originally Posted by Screwdriverone
Hi Alex,
A barlow does improve size (by the magnification amount) but as it is another piece or pieces of glass in the way, some light is lost and therefore the image becomes dimmer.
ED Barlows are better as the Extra Low Dispersion glass allows more light through and generally gives better views. Remember the ED12.5mm of mine you looked through?, same principle.
Chris
|
Good info chris, thanks.
Guess i'll find out how good my barlow is on Saturday under dark skies - seems alright around the light pollution from my balcony tho.
Quote:
Originally Posted by leon
Ah, a true Astronomer,  can't get enough of it, good stuff Alex, I see now that you a Astroholic. 
Leon  |
Where can we get help for this affliction - or do we even want help
Quote:
Originally Posted by Starkler
Re seeing Pluto:
You can point your scope to where pluto is meant to be, and you will see a field with the numerous faint dots of 15th magnitude stars, but just which one is pluto you will never be sure of unless you have charts that go that deep.
|
I'll check the star charts I have, not sure how deep they go.
I guess i could always say i looked at it, but all the other stars there kept getting in the way
Quote:
Originally Posted by cookie8
Hi Alex
Good on you. What a list! It's always good to plan out the night isn't it. Try to observe those objects in the west first before they set & wait for those in the east to rise high enough. Don't bore your wife with pluto. Don't forget to show her the Jewel Box and the superb binary alpha Centauri. She would love them ,those sparkling diamonds.
Enjoy Linden
Vincent |
I forgot about the Jewel Box, that ought to go down real well with the wife, thanks
I'll have to take another look in stellarium, and prioritise my targets so I don't miss any that start in the west. Thanks for that tip.
I still want more 
