Asteroids and Comets - PowerPoint PPT Presentation

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Asteroids and Comets

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Asteroid Albedos & Consequences for Detection by NEA Survey Programs Contributed by Eric B. Grosfils Pomona College Astronomy: Sky Surveys Great idea! – PowerPoint PPT presentation

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Title: Asteroids and Comets


1
Asteroid Albedos Consequences for Detection by
NEA Survey Programs Contributed by Eric B.
Grosfils Pomona College
2
Astronomy Sky Surveys
  • Great idea! But not so simple in practice
  • Its 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
3
Astronomy Sky Surveys
10
4
Astronomy Sky Surveys
20
5
Astronomy Sky Surveys
30
6
Astronomy Sky Surveys
40
7
Astronomy Sky Surveys
50
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