A "light year" is a measure of distance, derived from "how far light can travel in one Earth year". Thus, if you shine a torch for the amount of time it takes the Earth to orbit the sun exactly once,...
The Sun is approximately 93 million miles from the Earth. Light travels at 186,000 miles per second. So light would take about 500 seconds to reach us, or 8.333r minutes.
The Sun is approximately 8 light minutes from Earth. We're aren't even remotely far enough away from our sun for the distance to be measured in light years.
It wouldn't look like anything, since we'd all be dead. It would be one of the brighter stars in the sky, but not spectacular; it would be significantly dimmer than Sirius.