Question

What do we mean by the lookback time to a distant galaxy?

Answer 1

$\huge{Hey Mate!!!}$

☆☞ Here is ur answer ☜☆

✔✔ The more distant an object, the farther in its past we are observing its light.

✔✔ Lookback time is what makes the subfield of galaxy evolution possible, the ability to study the changes in galaxies with time by observing them at various distances means equals different epochs.

HOPE IT HELPS!

Answer 2

$<font color="red">$hello!

☆☞ Here is ur answer ☜☆

✔✔ The more distant an object, the farther in its past we are observing its light.

✔✔ Lookback time is what makes the subfield of galaxy evolution possible, the ability to study the changes in galaxies with time by observing them at various distances means equals different epochs.

HOPE IT HELPS!