Polaris A & Polaris B
Polaris has a close neighbor at 18 arcseconds that can be spotted easily through a telescope.
This is a 15 seconds exposure through a Meade Lightbridge 16-inch, a Dobson with no tracking, but fortunately Polaris moves very slowly through its small circumpolar path, due to its proximity to north pole in the sky. The camera used was a Canon EOS 450d, also known as Rebel XTi. The method employed was an eyepiece projection using a 14mm Meade Series 5000.
Computer Physics Lab 
2009/10/22 at 8:45 pm
Una foto muy bonita de Polaris, esa estrella doble olvidada. Únicamente nos acordamos de la estrella polar para orientar la montura.
2010/02/25 at 8:17 pm
mira la estrella es muy bonita, pero polaris b es muy dificil de estudiar…. por ejemplo, yo estaba estudiandola y medi cuenta que es muy dificil de encontrar su “initial mass” perdon nose como decirlo en espanol… pero bueno ese es me comentario… que la pasen bien.
2010/04/26 at 11:08 am
What you mean by “initial mass” ?
2010/09/22 at 6:49 am
initial mass, is that the star had when he began its existence. The ewvolution of the star depend of this parameter and also the die of the star.