70 likes | 183 Views
Asteroid Albedos & Consequences for Detection by NEA Survey Programs Contributed by Eric B. Grosfils Pomona College. Astronomy: Sky Surveys. Great idea! But not so simple in practice… It’s a big solar system out there!
E N D
Asteroid Albedos & Consequences for Detection by NEA Survey Programs Contributed by Eric B. Grosfils Pomona College
Astronomy: Sky Surveys • Great idea! But not so simple in practice… • It’s a big solar system out there! • Trade off between detection size limit and survey speed/effectiveness. • Asteroids are dark… much like asteroid Eros (10 km x 30 km) shown here (it really is here, even if you cannot see it) • with albedos of a few percent, think looking for lumps of coal set against the black vastness of space! Eros’ Albedo: 5%