a global network of small telescopes dedicated to photometry of cataclysmic variables, cba, center for backyard astrophysics, cbastro, cbastro.org, backyard, astrophysics, amateur, astronomy
a global network of small telescopes dedicated to photometry of cataclysmic variables, cba, center for backyard astrophysics, cbastro, cbastro.org, backyard, astrophysics, amateur, astronomy