The Blue End of Stars

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Customization Create a unique kitchen style with over colors, 10 metal trims, and nearly infinite configuration possibilities. In fact, the moon is full, or close to it, for most of the major meteor showers this year, an exception being the Eta Aquarids, which peak in the first week of May. Here are all the dates and sights for your diary this May. Look southeast from midnight to see the Milky Way this May this chart for North America is for on May 1, , and for on May 31, May is a great month for seeing the Milky Way at midnight, with the first 10 days of the month the very best of all.

How Do Supergiant and Hypergiant Stars Compare to our Solar System?

That's because there is no significant moonlight in the sky. New Moon, when our satellite is close to the sun, is on May 6, and for a week before and a few days afterward, the moon is just a slither, and barely in the night sky at all. If you want to see the Milky Way, look to the south-east from around midnight, though it will be at its best at about Wait until the end of May and you'll see the same thing you saw at at You don't need a telescope to see shooting stars. In fact, they must be avoided! Remember Halley's Comet?

Last seen in our solar system in , it left a trail of dust that produces around 20 shooting stars per hour each May.

STARS 2020 BLUE - End Of The Year Video

Again, the reason blue stars are so luminous comes down to energy. The more energy is produced, the more light is emitted and energy is emitted at the blue end of the spectrum. The reason Ra1 is so luminous is that it generates more energy in four seconds than the Sun does in a year. So you have a very luminous, hot blue giant star! Named for the man who discovered it, Sir Arthur Eddington, it describes the balance between the force of radiation energy as light being pushed outward and the force of gravity pulling inward. Super and hypergiant stars live close to the edge of this limit.

Sometimes, when the limit is exceeded and the outward push of radiation is greater than the inward pull of gravity, the star ejects matter and suddenly brightens. Eventually, balance returns, the star slips below the Eddington Limit again, less radiation light is emitted and the star consequently dims. A classic example of this is the star Eta Carinae, in the southern hemisphere.

This multiple star system has a combined luminosity of over five million Suns and a combined mass of about Suns. Over the past years, it has undergone a number of sporadic outbursts, causing it to shift back and forth from naked-eye brilliance to invisibility. Most famously, in it became the second brightest star in the sky as a result of an event now known as the Great Eruption. The aftermath of this outburst can be seen in photographs taken with the Hubble Space Telescope.

Shooting Stars, A 'Blue Moon' And The Milky Way. This Is What's Happening Above Your Head In May

He was, of course, talking about our mortal lives, but he could have been talking about the lives of giant blue stars. Put simply, stars survive by fusing hydrogen into helium. The more massive the star, the quicker it burns through its supply of hydrogen and, therefore, the shorter its lifespan.

In comparison, a red dwarf star typically has about a tenth the mass of the Sun and could theoretically survive for trillions of years.

Blue Giant

No one knows the fate of the universe or when, if at all, it will ever come to an end. Assuming the universe does come to an end, red dwarves could potentially last until the end of time! Rigel, for example, has a mass of about 21 Suns. As of this date April , there are over 2, stars with confirmed planets.

None of them are blue giant stars. Another reason is that blue giants tend to have very strong solar winds that make it difficult for planets to form in the first place. Having said that, there have been two giant stars discovered with dusty disks around them.

Both were discovered by the Spitzer space telescope in and are located in our nearest galactic neighbor, the Large Magellanic Cloud. One, HD R is over 70 times more massive than the Sun and is over a million times more luminous.

Helium absorbs light, heats star. Star expands, blows off material, collapses.

Both stars have dusty discs that extend 60 times further than the orbit of Pluto and could contain ten times as much mass as our own Kuiper belt. Nobody knows if these discs represent the formation of a solar system or the destruction of one. Stars are classified by their characteristics and typically fall into one of seven groups, with each group being assigned a letter of the alphabet.

The hottest and most luminous stars. Type O stars are the rarest and you may have already guessed the reason why. If you want to spot a couple of easy examples, turn towards Orion.