7000

5000

3000

1000

< Sun

How Hot?

© Astronomical Society of the Pacific 2004. Copies for educational purposes permitted.

°C

Star >

How far in light years?

Sun

50

100

150

< 41

< 55 Cancri d

55 Cancri e

< Mars

Earth >

Mercury >

Jupiter

< Venus

55 Cancri b

55 Cancri c

Planets (yr discovered)

Avg Dist From Star(Earth from Sun = 1 AU)

Orbit:Mass:

e (2004) b (1996) c (2002) d (2002)

0.04 AU 0.12 AU .24 AU 6.3 AU

2.8 Days 14.7 Days 44 Days 12.4 Yrs

5% Jupiter

78%Jupiter

22%Jupiter

3.9 Jupiter

Star: 55 Cancri Planets: 55 Cancri e, b, c, dStar’s System Compared to Our Solar System

First star with 4 confirmed planets. Close to same

temperature, diameter, age, and mass as the Sun.

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rR

A: 8

h 5

2mD

ec: 2

8º 2

0'm

ag: 5

.95

Gem

ini