# Distribution of apparent magnitude of stars

David113
Science 21 Mar '09 19:42
1. 21 Mar '09 19:42
Hi all,

I need information about the distribution of the apparent magnitude of the stars - how many stars are brighter than magnitude 0, 1, 2, 3, etc. Googling didn't bring any useful results; maybe you will be luckier than me?

Thanx ðŸ™‚
2. 21 Mar '09 19:45
What do you need this for?
3. sonhouse
Fast and Curious
21 Mar '09 21:09
Originally posted by David113
Hi all,

I need information about the distribution of the apparent magnitude of the stars - how many stars are brighter than magnitude 0, 1, 2, 3, etc. Googling didn't bring any useful results; maybe you will be luckier than me?

Thanx ðŸ™‚
The apparent magnitude of stars is mainly a function of distance, the nearer ones are stronger by just proximity, Alpha Centauri is just an ordinary sun sized star that would be pretty much invisible 400 ly away, but 4 ly away and it's very bright. So the distribution by apparent magnitude would just be a log graph on average based on distance.
4. 21 Mar '09 22:011 edit
Originally posted by sonhouse
The apparent magnitude of stars is mainly a function of distance, the nearer ones are stronger by just proximity, Alpha Centauri is just an ordinary sun sized star that would be pretty much invisible 400 ly away, but 4 ly away and it's very bright. So the distribution by apparent magnitude would just be a log graph on average based on distance.
That's fine, but I want the actual numbers - say, how many stars are brighter than magnitude n for each integer n between 0 and 15.

OK, I just found this:
http://www.vaughns-1-pagers.com/science/star-magnitude.htm
5. sonhouse
Fast and Curious
22 Mar '09 14:22
Originally posted by David113
That's fine, but I want the actual numbers - say, how many stars are brighter than magnitude n for each integer n between 0 and 15.

OK, I just found this:
http://www.vaughns-1-pagers.com/science/star-magnitude.htm
Good general science page, I bookmarked it. He did make one mistake, called Uranus the dimmest star visible with naked eye. Uranus of course being a planet not a star. But he just said 'hundreds' when he listed the stars at a certain magnitude, I think you wanted actual #'s, not just an estimate.
6. DeepThought