Javascript must be enabled to use all features of this site and to avoid misfunctions
Vega vs. Charlottetown - Comparison of sizes
HOME
Select category:
Cities
Select category
NEW

Cancel

Search in
Close
share
Vega
Charlottetown

Vega vs Charlottetown

Vega
Charlottetown
Change

Vega

State

Country

Capital
Population 0

Informations

Vega is the brightest star in the northern constellation of Lyra. It has the Bayer designation α Lyrae, which is Latinised to Alpha Lyrae and abbreviated Alpha Lyr or α Lyr. This star is relatively close at only 25 light-years from the Sun, and, together with Arcturus and Sirius, one of the most luminous stars in the Sun's neighborhood. It is the fifth-brightest star in the night sky, and the second-brightest star in the northern celestial hemisphere, after Arcturus. Vega has been extensively studied by astronomers, leading it to be termed "arguably the next most important star in the sky after the Sun". Vega was the northern pole star around 12,000 BC and will be so again around the year 13,727, when its declination will be +86° 14′. Vega was the first star other than the Sun to be photographed and the first to have its spectrum recorded. It was one of the first stars whose distance was estimated through parallax measurements. Vega has functioned as the baseline for calibrating the photometric brightness scale and was one of the stars used to define the zero point for the UBV photometric system.



Vega is only about a tenth of the age of the Sun, but since it is 2.1 times as massive, its expected lifetime is also one tenth of that of the Sun; both stars are at present approaching the midpoint of their life expectancies. Vega has an unusually low abundance of the elements with a higher atomic number than that of helium. Vega is also a variable star that varies slightly in brightness. It is rotating rapidly with a velocity of 236 km/s at the equator. This causes the equator to bulge outward due to centrifugal effects, and, as a result, there is a variation of temperature across the star's photosphere that reaches a maximum at the poles. From Earth, Vega is observed from the direction of one of these poles.Based on an observed excess emission of infrared radiation, Vega appears to have a circumstellar disk of dust. This dust is likely to be the result of collisions between objects in an orbiting debris disk, which is analogous to the Kuiper belt in the Solar System. Stars that display an infrared excess due to dust emission are termed Vega-like stars.

Source: Wikipedia
Change

Charlottetown

StatePrince Edward Island

Country

Canada
Capital
Population 34562

Informations

Charlottetown (; French pronunciation: ​[ʃaʁlɔt.tawn]; Scottish Gaelic: Baile Sheàrlot) is the capital and largest city of the Canadian province of Prince Edward Island, and the county seat of Queens County. Named after Charlotte of Mecklenburg-Strelitz, queen consort of King George III of the United Kingdom, Charlottetown was an unincorporated town until it was incorporated as a city in 1855.It was the site of the famous Charlottetown Conference in 1864, the first gathering of Canadian and Maritime statesmen to discuss the proposed Maritime Union.



This conference led, instead, to the union of British North American colonies in 1867, which was the beginning of the Canadian confederation. PEI, however, did not join Confederation until 1873. From this, the city adopted as its motto Cunabula Foederis, "Birthplace of Confederation". The population of Charlottetown in the 2016 census was 36,094; this forms the centre of a census agglomeration of 76,728, which is slightly less than half of the province's population (155,241).

Source: Wikipedia

More intresting stuff