Mars is the fourth planet from the sun and the seventh largest at 227,940,000 kilometers, according to the University of Central Florida. The size and close proximity of Mars render it visible in the night sky, especially at certain points during its orbit.Know More
NakedEyePlanets.com notes that in its earliest stages of appearance, Mars has a faint, pale orange look and shines similarly to nearby stars. From this point, Mars continues to gain altitude until it disappears from the sky altogether at twilight. The overall appearance of the Red Planet is relatively diminutive. By late August, Mars travels west of the sun and becomes visible and more prominent in the night sky rather than the day.
The University of Central Florida explains that Mars travels around the sun in an oval-shaped pattern, causing it to appear more visible in the night sky. Earth is the third planet from the sun, and Mars is the fourth, making it one of the easiest to identify in the sky. NakedEyePlanets.com explains that at certain times during the calendar year, Mars is not visible at all. Mars first becomes visible in July, around dawn, as it becomes the tip of the Beta Tauri constellation's horn.Learn More
Planets and stars differ in their mass, composition and life cycle. Stars are usually structurally simple bodies of high mass that produce energy by way of nuclear fusion of hydrogen into helium. Planets are much smaller, do not generate light and usually orbit stars.Full Answer >
Uranus is composed largely of hydrogen and helium like the other gas giants. It also has water ice, methane ice and ammonia ice. There are also tiny amounts of carbon monoxide, carbon dioxide and hydrocarbons such as ethane, acetylene, diacetylene and methylacetylene.Full Answer >
The word "planet" in Greek means "wanderer." Planets were thought to be moving against the still background of stars. The planets move, or revolve, around the sun in relatively fixed orbits.Full Answer >
The interiors of the Jovian planets, also known as gas giants, are different because of their sizes. Jupiter and Saturn, the largest of the four Jovian planets, are massive enough to compress materials into a rocky core. Uranus and Neptune exert less pressure, which causes their cores to be in an icy, liquid state.Full Answer >