RAM stands for random-access memory, which makes it possible to find specific information very quickly. It is a form of fast-access, volatile storage that is used as the main memory in computer systems. The most widely used form of RAM for the main memory is dynamic RAM (DRAM).
English: Size comparison between VY Canis Majoris and Earth (via the Sun) by zooming in three times. The colours of the stars have been chosen based roughly on their surface temperatures.nglish: Size comparison between VY Canis Majoris and Earth (via the Sun) by zooming in three times. The colours of the stars have been chosen based roughly on their surface temperatures.
However, this view is deceptive and illustrates the difference between magnitude and luminosity. Altair is closer to us than Vega, but appears a bit dimmer. That is because Vega puts out more light; it is more luminous. Also, while Altair is 1Â½ times larger than Earth's sun, Vega is more than three times larger.