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Galaxies
Galaxies are large systems of stars and interstellar matter, and they contain billions of stars. Our own galaxy, the Milky Way, has 200 to 400 billion stars, and there are over one billion known galaxies. Questions that have to do with galaxies in general and specific galaxies are perfect for this category!
2,392 Questions
Well, we're inside the Milky Way galaxy, so obviously it's the closest.
The closest satellite galaxy to us is the Canis Major Dwarf Galaxy at a distance of about 25,000 light years.
Most scientists say that the closest galaxy that isn't a satellite of the Milky Way is Andromeda, about 2 million light years away.
However some argue the Large Magellanic Cloud is a separate galaxy, and not a satellite of our own galaxy. If they are correct then the nearest galaxy is 169,000 light years away.
Are there any galaxies in Gemini?
Gemeni is believed as a zodiac sign. I also think it is one of the moon. If it is a moon there shouldn't be a galaxy in Gemeni
How many galaxys are there out?
There are an estimated 1011 galaxies in the observable Universe. Please note that the entire Universe is much bigger than that, but it is not known how much bigger. It may, or may not, be infinitely big, in which case there might be infinitely many galaxies.
Are there at least 350 billion or more large galaxies in the observable universe?
Yes, because scientists have found hundreds and hundreds of galaxies already and scientists say that there are more galaxies out there that they haven't found!
You can count the stars, bu it is as hopeless as tryin to count all the grains of sand in the Sahara Desert. So in other word youcna count stars but you can't. In our galaxy we have 100 billion stars and there are a 100 billion galaxies, at least.
Is it true that the farther away from Earth a galaxy is the slower it is moving?
incorrect. The farther away from earth a galaxy is, the faster it is moving.
Arcturus (Alpha Boötis) is the brightest star in the constellation Boötes.
Coordinates are 14h 15m 39.7s, +19° 10′ 56
See related link for wikisky
- Galaxy?
- Constellation?
- Wine?
- Warship?
- Play?
- Novel?
- TV series?
- Damsel?
Does Star Wars Galaxies have a chat filter?
It has an optional profanity filter which defaults to "on."
How did merchants raise money to invest in exploration?
Merchants raised money to invest in exploration by holding raffles and contests in parts of Europe. Some merchants set up street markets as well as their established buildings to make extra money for exploration.
How big a box needs to be to hold 7000000000000000000000 pennies?
A United States of America penny has a radius of 9.525mm, and a thickness of 1.55mm.
The volume of a penny is given by pi * 9.5252 * 1.55 = 441.8 mm3
Assuming we melted the pennies down so that no space was wasted, the volume of the box needed to hold them all would be
441.8 * 7 000 000 000 000 000 000 000 = 3.093 x 1024 mm 3
Or, to put it another way, if the box was a cube, each side of the box would have to be about 90 miles long.
What is the relationship between brightness and temperature shown within the main sequence?
As temperature increases the absolute brightness increases
Why did they name it the little dipper?
I suspect that once the more obvious asterism of the Big Dipper was named, the nearby and similar group was simply called the Little Dipper.
World cultures did not always agree, (heck, they almost never agreed) on which stars were in which asterisms, or what they represented. The which we call the Big Dipper has variously been The Plow, The Sickle, The Cart, the Great Bear (hence the constellation of Ursa Major, which is the Big Dipper plus some other stars) and, in the years following Charlemagne, Charles' Wain (wagon).
Note the distinction between asterisms, which are groups of stars seeming (often to those with strong imaginations) to form animal or other shapes, and constellations, which are tracts of sky, very like countries on a geopolitical map.
Some asterisms are the hearts of constellations, as the Big Dipper is part of Ursa Major, but some are larger. The "Summer Triangle" of Vega, Deneb and Altair takes in parts of three constellations.
Why the thiele tube is shaped the way it is?
The thiele tube allows convection currents in the oil when it is heated meaning there is fairly uniform distribution of temperature.
What is the mass of eta carinae?
Eta Carinae is a stellar system in the constellation Carina.
It has a mass of about 100 -> 150 Suns. [See related question]
Castor, like all visible stars are within the Milky Way Galaxy - Our galaxy.
Why not? A volunteer fire fighter is the lifeline for more people in rural areas than we like to think about. And that sets aside the volunteer with a city department (where fire fighters unions still permit them) who provides that extra manpower when the sky is red and the chips are down. The selfless service these empowered individuals provide saves lives and reduces property damage and loss. The volunteer will be trained, and training is a good thing. Departments train volunteers to do all the things that paid fire fighters do, and maybe some more. (Who ever heard of a big urban fire department training one man live line and ladder, hmm?) So you'll get training, and a lot of it. Very useful stuff, too, particularly the first aid and emergency medical course work you'll have to go through. You may be at, say, a fast food restaurant and use it to good effect before any firefighter or EMT can appear. You will have been a "first responder" in the finest traditions of public service. There is the "awareness factor" associated with this line of service that will make you a safer citizen, too. Your home and business will be less of a fire (or other) hazard, and your will help family, friends and neighbors make changes to improve the chances that something untoward will jump off there. We could go on, but you get the picture. Becoming a volunteer fire fighter is not for everyone, and not everyone can do it. But, if you have the will and the skill, you may be able to take up some of the slack in your community. And there is usually a bit more slack than anyone is willing to admit, particularly when something big and "unpredictable" transpires. Make an inquiry with any fire fighter you see, go to any (manned) fire station, or get on the phone and make some calls. If you're interested, that is. Good luck making the grade.
What emits extremely large quantities of energy?
Quasars emit more energy than anything else in the universe. Quasars are massive black holes at the cores of some galaxies, swallowing matter and stars and ejecting them out collimated bipolar jets of matter and radiation which stretch out hundreds of thousands of light years.
Since there are quasars in galaxies close by, these indicate the evolution of our universe.
The term you're looking for is "parallax." Just a caution for you not to confuse parallax, which does answer your question, with the retrograde motion of some of the planets, which is related but different.
Are there planets in other galaxies?
Well, we don't know whats all out there because it's hard to get into other galaxies, but we think its the only one with planets. (We don't know for sure so do some more research)
