Mercury is a lot like our moon.
One solar day on Mercury lasts the equivalent of 176 earth days while the sidereal day lasts 59 earth days. Mercury is nearly tidally locked to the sun and over time this has slowed the rotation of the planet to almost match its orbit around the sun. Mercury is the color gray. Mercury is closest to the sun. Jupiter is the neighboring planet to mercury. There is nothing about the size compared to the sun. It takes 88 days to orbit the sun.