Name

b

Tycho

12.89

0.395

1

30,000

0.013

21.62

−0.005

Cas A

10.95

0.335

1

30,000

0.034

7.79

−3.2

Cygnus loop

3.2

0.0979

0.7

30,000

0.0385

445

0

SN 1006

11.73

0.359

0.7

30,000

0.087

206.2

0