Thesolar systemis the shape of a thin disk: the Earth, the Moon, and the planets orbit the Sun in roughly the same plane. Astronomers call this plane theecliptic. Because of this alignment, the Sun, the Moon, and the five planets visible to the naked eye—Mercury,Venus,Mars,Jupiter, a...
The Plough: There are seven bright stars that form the Plough, as it is called in Ireland and the U.K., and the Big Dipper in the United States and Canada. The Plough is visible to the naked eye and is a major symbol of the Northern night sky. ...
Helix Nebula (one of the closest to the Earth of all the bright planetary nebulae) - 3 LightyearsOrion Nebula (brightest nebulae, and is visible to the naked eye in the night sky) - 24 light yearsOmega Centauri (largest globular cluster in the Milky Way) - 150 light yearsSmall ...
Procyon, the eighth-brightest star in the night sky, is actually part of a binary star system comprised of Procyon A and Procyon B. Procyon A is visible to the naked eye while Procyon B is not.Answer and Explanation: The approximate luminosity of Procyon B is 0.00055 units of solar ...
There are five other objects visible to the naked eye that also appear to move in respect to the fixed background of stars on the celestial sphere. These are the planets Mercury, Venus, Mars, Jupiter, and the Saturn. All of them revolve around the sun in nearly the same plane as the ...
If you are up very early on that day, before morning twilight begins, Mars, the Moon, and Saturn will be together in the eastern sky. Neptune will also be there, but will not be visible to the unaided eye. A telescope or pair of binoculars wi...
Only about 6,000 stars are visible to the naked eye from Earth, and only about 2,000 can be seen from any one spot. With binoculars the number of stars you can see from a single location rises to about 50,000, and with a small two-inch telescope it leaps to 300,000. With a ...
The corona of the sun is the outer atmosphere, extending far out from the solar surface, which is not usually visible to the naked eye because of the sun’s brightness. It eventually becomes what is known as the solar wind. We are not even allowed to buy products grown directly from ...
When near central meridian passage, which occurred on June 29·9, the group was visible to the naked eye. Though itself not a return of an individual spot of the previous rotation, the recent spot represented a continuation of localised disturbance which has been apparent for the last two ...
Mercury, Venus, Mars, Jupiter and Saturn are visible with the naked eye, and have been known throughout human history. Following the invention of the telescope in the 17th century, Uranus (which astronomers generally pronounce with the stress on the first syllable, not the second) was discovere...