Recessional Velocity Calculator:
Enter the values of Hubble constant H , Proper Distance D(light years) & Peculiar Velocity Vpec(MPH) to determine the value of Recessional Velocity Vr(MPH).
Recessional Velocity Formula:
The Recessional Velocity Vr(MPH) in Meter Per Hour is equal to the Hubble constant H = 342,000 MPH/light year and multiply the Proper Distance D(light years) in light years to Addition of Peculiar Velocity Vpec(MPH) in Meter Per Hour.
The Formula of Recessional Velocity can be writtern as,
Vr(MPH) = H * D(light years) + Vpec(MPH)
Here,
Vr(MPH) = Recessional Velocity in Meter Per Hour
H = Hubble constant H = 342,000 MPH/light year
D(light years) = Proper Distance in light years
Vpec(MPH) = Peculiar Velocity in Meter Per Hour
Calculation for Recessional Velocity:
1)Determine the Recessional Velocity and given for H = 342,000 MPH/light year , Proper Distance = 350light years , Peculiar Velocity = 25000mph.
Answer
Vr = H * D + Vpec
Vr = 342000 * 350 + 25000
Vr = 119725000mph.
2)Determine the Peculiar Velocity and given for H = 342,000 MPH/light year , Proper Distance = 350light years , Recessional Velocity = 171025000mph.
Answer
Vr = H * D + Vpec
171025000 = 342,000 * 350 + Vpec
Vpec = 25000mph.