Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

Sign in to follow this  
Redscouse

Magnitude

Recommended Posts

Evening all. :hello: 

Is there a scale somewhere I can use for magnitude v telescope (or size of)

IE:

6" Newt = mag 5
10" Frac = mag 8
etc. 

or can anyone put a quick guestimate together for me pls?
Reason for asking is Stellarium. I'd like to hide the things that I can't (nor will ever) see through my current scope and then change accordingly as/when I upgrade.

Thanks.
Pete.

Edited by Redscouse

Share this post


Link to post
Share on other sites

 

Probably my favorite online calculator

http://www.stargazing.net/naa/scopemath.htm

gives you lotsa good things, including theoretical limiting magnitude for stellar objects, brightness factor for extended objects, theoretical resolving power of seconds of arc, and more (theoretical size of moon features, etc.). Just plug in your aperture, focal ratio and EP.

  • Like 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.