andromeda galaxy, question inside?

Question

I know I am in the wrong section , but people like to hang out here, so I thought maybe some of you will be able to answer this question.
I have been trying to find more information about the Andromeda galaxy and specifically if scientist have been able to determine if there are any planets on it or just stars but I have not found the information I need.
Can anyone give me an answer to that?
thanks

thank you "punch " for those links, just what I was looking for :)

Answer 1

Andromeda galaxy is too far away to detect any planets using the methods we have now. The planets found so far in the Universe are a few hundred light-years away at most. Andromeda is about 2 MILLION ly away.
Given current notions about the percentage of stars that have planets, it's EXTREMELY likely that there are some in the Andromeda galaxy. But we lack the technology to find out for sure. Scientists are looking....

Answer 2

1) The Andromeda galaxy is pretty much just like the Milky Way galaxy. It has stars and planets around those stars. 2) It is doubtful Andromeda collided with anything in the past. The universe is just not old enough for galactic bumper cars. These things take billions of years to play out. The galaxies colliding will not be a spectacular boom. Galaxies are far and away mostly empty space so for the most part they will pass through each other. Perhaps some stars may collide here and there but it is not very likely (if the sun were the size of a quarter the next quarter would be 475 miles away so you can see how unlikely it is two quarters would hit). Mostly the effect will be to distort the galaxies. Eventually they will settle back into their familiar spiral shapes.

Answer 3

1) Andromeda is a galaxy very similar to our own.
2) The current models we have of solar system formation around stars makes it pretty inevitable that planets will form in orbit around the central collapsing mass of a proto-star

It therefore likely that most stars will have planets. Andromeda is loaded with billions of stars.

Extrasolar planets can mostly only be detected by looking for 'wobbles' in the star as these planets orbit it. To have a wobble large enough to measure at the immense distances from us means that most of the planets we've detected so far are large and close to the star - about like Jupiter in Venus' orbit.

These are probably not typical, and our solar system may be a lot more like the norm - small rocky planets near the sun; gas giants further out.

Watch this space.

CD

Answer 4

The chances that there are planets is very good. For that many stars and no planets make no sense. The andromeda galaxy has a trillion stars and they are looking.

Answer 5

Why the thumbs down?

Extrasolar planets
Main article: Extrasolar planet
Of the 243 extrasolar planets discovered by June 2007, most have masses which are comparable to or larger than Jupiter's.[29] Exceptions include a number of planets discovered orbiting burned-out star remnants called pulsars, such as PSR B1257+12,[30] the planets orbiting the stars Mu Arae, 55 Cancri and GJ 436 which are approximately Neptune-sized,[31] and a planet orbiting Gliese 876 that is estimated to be about 6 to 8 times as massive as the Earth and is probably rocky in composition.

It is far from clear if the newly discovered large planets would resemble the gas giants in the Solar System or if they are of an entirely different type as yet unknown, like ammonia giants or carbon planets. In particular, some of the newly discovered planets, known as hot Jupiters, orbit extremely close to their parent stars, in nearly circular orbits. They therefore receive much more stellar radiation than the gas giants in the Solar System, which makes it questionable whether they are the same type of planet at all. There is also a class of hot Jupiters that orbit so close to their star that their atmospheres are slowly blown away in a comet-like tail: the Chthonian planets.

Several projects have been proposed to create an array of space telescopes to search for extrasolar planets with masses comparable to the Earth. The NASA Terrestrial Planet Finder was one such program, but (as of 2006-02-06) this program has been put on indefinite hold. The ESA is considering a comparable mission called Darwin. The frequency of occurrence of such terrestrial planets is one of the variables in the Drake equation which estimates the number of intelligent, communicating civilizations that exist in our galaxy.


Interstellar "planets"
Main article: Interstellar planetary mass object
Several computer simulations of stellar and planetary system formation have suggested that some objects of planetary mass would be ejected into interstellar space. Some scientists have argued that such objects found roaming in deep space should be classed as "planets". However, many others argue that only planemos that directly orbit stars should qualify as planets, preferring to use the terms "planetary body", "planetary mass object" or "planemo" for similar free-floating objects (as well as planetary-sized moons). The IAU's working definition on extrasolar planets takes no position on the issue. The discoverers of the bodies mentioned above decided to avoid the debate over what constitutes a planet by referring to the objects as planemos. However, the original IAU proposal for the 2006 definition of planet favoured the star-orbiting criterion, although the final draft avoided the issue.

For a brief time in 2006, astronomers believed they had found a binary system of such objects, Oph 162225-240515, which the discoverers described as "planemos". However, recent analysis[32] of the objects has determined that their masses are each greater than 13 Jupiter-masses, making the pair brown dwarfs.[33]

Answer 6

No. All ~245 known planets are within the Milky Way Galaxy.
( We're not even close to determining this for Andromeda. )
( BUT... logically, it's untenable that there aren't BILLIONS )

Answer 7

We haven't found planets there yet - it's too far away for the new planet-finding techniques we've developed.

But it'd be very surprising if there weren't, given how common planets seem to be in this galaxy.

Answer 8

No doubt SOMEWHERE in the galaxy is at least ONE star that has at least ONE planet orbiting it. :P

Answer 9

http://en.wikipedia.org/wiki/Andromeda_Galaxy

Answer 10

www.reasons.org
www.jpl.nasa.gov

now get outa here!