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Got a beginners' question? No matter how elementary, our friendly forum community and magazine writers will answer it.

How accurate are sunrise/sunset times?

Hi all,

I'm new here and new to astronomy, and have a basic question - so this looks like a good forum!

I'm using the outputs from HMNAO Websurf for sunrise and sunset, and wondered if anyone can tell me how accurate these are?

In particular for sunrise/set, do they account for refraction of the earth's atmosphere, which makes the sun appear to be above the horizon even when it is geometrically below it?

And ...
Read more : How accurate are sunrise/sunset times? | Views : 1796 | Replies : 1


Nexstar 5SE or 6SE

Hello all,

I hope you don't mind the silly question and one I am sure you have heard before!

My son has been using his cousins Nexstar 4SE and has well and truly gotten the bug. I have been asked continually about buying him his first telescope and to be fair he has spent a lot of time researching which has been great to see.
He would like to go with the Nexstar 5SE, but ...
Read more : Nexstar 5SE or 6SE | Views : 2378 | Replies : 3


who has the biggest telescope on this site )))))))

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PLEASE SEND MAIL thank you ALL
Subscribe on my ((YouTube channel)) I'm giving a telescope,s away
see my other mail to get my YouTube address

By the way ??? who has the biggest telescope on this site

thank you very much and don't stay up too long LOL:) Ha ha ha
Read more : who has the biggest telescope on this site ))))))) | Views : 2586 | Replies : 8


When barlow lenses are useful/useless, beginner question

Hello everyone!

I am completely new to astronomy so this question will probably be both easy and a bit dumb. I recently received a Celestron travel scope 70, a fairly weak telescope for a good price in my opinion. I am happy with what it does so far, but I have the possibility of getting a barlow lens (x3) to use with it.
Now my question is wether this lens is even usefull in the ...
Read more : When barlow lenses are useful/useless, beginner question | Views : 3840 | Replies : 7


can you make a TRAILER of Your Telescope \(^o^)/

hello my silly question is ????

hello nice to meet you I have found classic telescope
my question is does somebody else also make trailer off telescope,s

SEE MY 5 trailer,s
Go Too. Google and type this in ... Live Polarex

oFF ??

go to youTube .. type in ... Live polarex
you see my... trailer,s :lol:

thanks
Read more : can you make a TRAILER of Your Telescope \(^o^)/ | Views : 1247 | Replies : 1


making a programme on ion drive

would you be interested in making a programme on ion drive, my theory is to react xenon with flourine to produce a compound thus increaseing accelleration. plus n.a.s.a'ers chang diaz claims 39 days for the trip to mars.

I'd be interested to hear your thoughts on this

Thanks
Read more : making a programme on ion drive | Views : 1514 | Replies : 0


A good starter scope ready for imaging ?

Hi,

I am very new to astronomy and I'm looking for a scope and mount that is good starter to general viewing but I can use for astrophotography later. I recently went to a local club and had a look through a few different scopes. I was going to get a 8 or 10" dob but, one they are quite big to store and transport and I would need to collimate it so I think ...
Read more : A good starter scope ready for imaging ? | Views : 2362 | Replies : 3


Imaging Jupiter and the Full moon

I have been imaging Jupiter and the full moon a couple of nights ago. I simply used my DSLR mounted on a tripod imaging at different exposures to allow for the varying brightness of the Moon and the planet. I have images which I now want to compine in some way but have not worked out what to do. I have a few processing tools but not photoshop. Can you help please.
Many thanks

C. ...
Read more : Imaging Jupiter and the Full moon | Views : 1866 | Replies : 2


Telescope bamboozlement!? Help! Beginner/travel

Hi all,

I have read many forums and articles and to be quite honest, am getting a little overwhelmed by it all so hoping you can help.

My boyfriend has a massive interest in stars, space and planets and would love a telescope. I thought I'd surprise him for his birthday.
We live in greater London, with a tiny garden but we have a lot of parks around us and we go camping/travelling a fair ...
Read more : Telescope bamboozlement!? Help! Beginner/travel | Views : 2427 | Replies : 6


Phil's Scribblings

I am a writer but make some of my writings available for free on my website. You can read them here:

http://www.philippughastronomer.com/Phi ... ingst.html

Much of the material is suitable for beginners.
Read more : Phil's Scribblings | Views : 1492 | Replies : 0


 

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