16-08-2010
Regardless of the time of day, the season, or what the moon is doing, the brightest star in the sky is the sun, and the second brightest is Sirius, in the constellation of Canis Major. Note that Venus, Mars, and Jupiter are capable of being brighter than Sirius depending on where they are in their orbits relative to Earth. But they are planets, and you asked for the brightest "star".
mars
yes
The brightest object as seen from us is the Sun.The next-brightest objects are the Moon, Venus, Jupiter, and Mars (on rare occasions, Mars can actually be a bit brighter than Jupiter).
Mars.
Venus is the brightest thing in the sky, after the Sun and Moon.
Jupiter is the second brightest planet in the sky after Venus and the fourth brightest object in the sky. The sun and the moon are the brightest objects in the sky, but they are not planets.
THERE IS NO TIME ZONE ON MARS..... And since no one has ever set foot on mars there is no way to calculate time. When an unmanned spaceship arrives at Mars it is probably calculated to Houston (central) time.
Second brightest after Venus?
The brightest planet at night, depending on phase, is Venus. Jupiter and Mars can be a close second, depending on the season.
the brightest object is Venus, and mars is just barely south and above it.
Mars is not the brightest planet in Earth's sky. As seen from Earth, Venus is the brightest planet. Venus orbits the sun one step inward from Earth, and Mars orbits one step outward. Venus gets slightly closer to us than Mars does, but the main reason Venus looks so bright is that its surface is covered with highly reflective clouds. Mars isn't the second-brightest planet either. Jupiter is. Jupiter is even farther away than Venus or Mars, but it's huge. A dozen planet Earths could fit side by side in front of Jupiter. Mars sometimes gets as bright as Jupiter. That happened last in 2003. But generally Mars exhibits a range in brightness as it and we orbit the sun. Mars can be as bright as the brightest stars (but not as bright as Venus, and usually not as bright as Jupiter). Or Mars can be relatively faint.