Redshift z

s = zc/H_o Mpc

1 Mpc 3.3 × 10⁶ ly light years

U_s/U_o = 1/(z + 1)²

U_s/U_o = (1 − 2z)

c_s/c_o = 1/(z +1)

<

<43

<140 Mly

0.98 - 1.02

0.98 - 1.02

0.99 - 1.01

0.01

43

140 Mly

0.98

0.98

0.99

0.05

215

700 Mly

0.90

0.90

0.95

0.20

860

2.8 Bly

0.69

0.60

0.83

1.0

0.25

0.50

5.0

0.028

0.17

9.0

0.010

0.10