Redshift questions

Redshift questions

Red shift

Big bang

Less/ no light pollutionLess atmospheric distortion/ interferenceLess/ no cloud coverImage is clearer

Light is red shifted

The further away the galaxy is, the bigger the effectThe universe is expanding

Observed – original = Z x orginal

Observed – 600 = 0.15 x 600 = 90

600 + 90 = 690

Distance from the EarthSpeed the stars/ galaxies are moving away from the earth

The microwave radiation comes from radiation present just after the big bang The big bang is currently the only way of explaining CMBR

The wavelength is decreased and the frequency increased

Red shift

C

It is furthest away; it has the largest red shift; it is moving away the fastest.

The observed wavelength of the dark line from the distant galaxy is increasedTherefore the distant galaxy must be moving outwards from a small initial point

This suggests the universe is expanding

The existence of CMBR