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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
Is Orions belt part of the southern cross?
No. It is a part of the constellation of Orion. The Southern Cross is separate to that.
Stars are blue because of their age and temperature. Blue is an indication of a young HOT star, when reddish color means the star is aging
What Is thin gas and clusters of stars surrounds the disk of the milky way galaxy?
what is the thin gas and clusters of stars surrounds the disk of the Milky Way Galaxy.
What happens to the human body when you enter space?
1. The intense negative pressure causes blood vessels to rupture.
2. The rays from the sun will cause radiation poisoning
3. You would freeze to death, as it is very close to 0 degrees Kelvin (absolute zero)
Is BX442 the most distant spiral galaxy when it's 10.7 billion light years from Earth?
Yes. BX442 is the most distant spiral galaxy (type Scd) 10.7 billion light-years from Earth. It's located in the Pegasus constellation. It's diameter is ~30,000 ly.
What is the distance that the Milky Way galaxy travels through space in one year?
The stellar disk of the Milky Way Galaxy is approximately 100,000 light-years (9×1017 km) (6×1017 mi) in diameter, and is considered to be, on average, about 1,000 light-years (9×1015 km) thick. It is estimated to contain at least 200 billion stars and possibly up to 400 billion.
Messier 89 (M89 or NGC 4552) is an elliptical galaxy in the constellation Virgo.
It's difficult to give a precise size to a galaxy as there is no defining boundary. However, estimates place the size between 100,000 -> 150,000 light years.
Where is the black hole located in the galaxy?
Black holes can technically be any where. Some scientists believe that there is a black hole in the center of our galaxy along with many other galaxies. Because black holes are so difficult to detect, they can be very dangerous.
What galaxy super cluster is earth in?
The Earth is part of the Milky Way Galaxy which in turn is part of the Local Group Cluster. The Local Group Cluster itself is part of the Virgo super cluster.
Which region of the early universe was most likely to become a galaxy?
B! A region whose matter density was higher than average
Orion is a constellation consisting of many different stars. Orion doesn't have a "color" of its own. The two major stars are the red giant Betelgeuse, and the blue-white supergiant Rigel. The other stars are a variety of colors.
Which goes first solar system space or galaxy?
That depends on what definition of first you mean. A solar system is in a galaxy and a galaxy is in space. So the solar system is smallest and space is largest.
Altair like all the visible stars are within our own Galaxy - the Milky Way.
What would you be most likely to find if you returned to the solar system in 10.0 billion years?
a white dwarf
What causes the extreme temperatures on Venus?
The gases around the planet traps the suns heat and energy in the atmosphere
How do scientists make predictions about the future of the universe?
They take steps and see what happens today in order to find out what happens in the future. ( by the way this was answered by a 10 year old in 4th grade).
Galaxies are moving away from each
other in a constantly expanding universe
What does a spiral binding machine do?
A spiral binding machine allows a document to be perforated, then using a coil through the perforated area, it binds the document into a booklet. It requires the first three or four coils to be done manually, then the machine takes over. This allows a booklet to lay flat, similar to spiral notebooks.
Parallax cant be used on a star if the star is too?
We can't use parallax to measure a stars distance from the Earth if the star is already too far away. The angles used in parallax measurment are already very small, and if the star is beyond a certain distance from us the angle becomes too small to measure, and no distance can be determined.
To date the largest distance that can be measured using parallax, with the Hipparchos sattelite, is about 1 600 light years. This will be improved with the European Space Agencies Gaia mission in 2012 and 2013.
