Doppler Effect in Astronomy
-1000 km/s (toward)
306 km/s (away)
1000 km/s (away)
580 nm
589.0 nm
600 nm
Doppler Shift in Astronomy
When a galaxy moves relative to us, its light undergoes a Doppler shift:
Δλ/λ = v/c
Where Δλ is the wavelength shift, λ is the rest wavelength, v is the radial velocity, and c is the speed of light.
Current values:
- Observed wavelength: 589.6 nm
- Wavelength shift: +0.6 nm
- Radial velocity: 306 km/s
- Direction: away from us
