Magellanic Clouds — two irregular dwarf galaxies in the Milky Way

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SUMMARY

The Magellanic Clouds, comprising the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC), are two irregular dwarf galaxies orbiting the Milky Way, located approximately 160,000 and 200,000 light-years from Earth, respectively. The LMC has a diameter of 14,000 light-years, while the SMC measures 7,000 light-years across. These galaxies are significant due to their high count of companion galaxies and their visibility from the Southern Hemisphere. Tools like Stellarium can assist in locating and studying these celestial bodies.

PREREQUISITES
  • Understanding of celestial coordinates and light-year measurements
  • Familiarity with irregular dwarf galaxies and their characteristics
  • Basic knowledge of astronomy tools, specifically Stellarium
  • Awareness of the Milky Way's structure and its satellite galaxies
NEXT STEPS
  • Research the characteristics and formation of irregular dwarf galaxies
  • Explore the use of Stellarium for celestial navigation and observation
  • Investigate the collision rates and interactions between the Magellanic Clouds and the Milky Way
  • Study the Andromeda Galaxy's satellite galaxies and their significance in galactic formation
USEFUL FOR

Astronomy enthusiasts, astrophysicists, and anyone interested in the study of dwarf galaxies and their relationship with the Milky Way will benefit from this discussion.

Philosophaie
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In a recent article:

http://io9.com/5937295/astronomers-discover-milky-ways-twin-magellanic-clouds-and-all

Our galaxy is not particularly special in the universe.

Its pairing with the Magellanic Clouds — two irregular dwarf galaxies has other similar configurations out there.

I would like to confirm the existence and location of these irregular dwarf galaxies.

How close they are and the collision rate.

Also could we discuss the Magellanic Cloud. How big it is, where it is located.
 
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Philosophaie said:
In a recent article:

http://io9.com/5937295/astronomers-discover-milky-ways-twin-magellanic-clouds-and-all

Our galaxy is not particularly special in the universe.
Its pairing with the Magellanic Clouds — two irregular dwarf galaxies has other similar configurations out there.
I would like to confirm the existence and location of these irregular dwarf galaxies.
How close they are and the collision rate.

Also could we discuss the Magellanic Cloud. How big it is, where it is located.

These irregular dwarf galaxies ? which ones ? The Magellanic Clouds ? look on any star map and it will tell you their location in the sky.
They are not IN the Milky Way as you said in your title. They orbit our Milky Way galaxy
all that info is readily available ... for example... the Magellanic Clouds are ~ 170,000 light years away from Earth.

this has to be a well known galaxy with the highest known count of companion galaxies, from wiki...

The Andromeda Galaxy (M31) has satellite galaxies just like the Milky Way Galaxy. Orbiting M31 are at least 14 dwarf galaxies: the brightest and largest is M32, which can be seen with a backyard telescope. The second brightest and closest one to M32 is M110. The other galaxies are fainter, and were mostly discovered only starting from the 1970s.

On January 11, 2006, it was announced that Andromeda's faint companion galaxies lie on or close to a single plane running through Andromeda's center. This unexpected distribution is not obviously understood in the context of current models for galaxy formation. The plane of satellite galaxies points toward a nearby group of galaxies (M81 group), possibly tracing the large-scale distribution of dark matter

I can make out 1 of the companions through my scope, M32 cheers
Dave
 
davenn said:
I can make out 1 of the companions through my scope, M32

Wow, nice. I can barely make out Andromeda at all from my front yard with my 8 inch scope. Can't wait till I move out to Tucson in a week or so.

I would like to confirm the existence and location of these irregular dwarf galaxies.

How close they are and the collision rate.

Also could we discuss the Magellanic Cloud. How big it is, where it is located.

The magellanic clouds are in the southern part of the celestial sphere and visible from the Southern Hemisphere of the Earth.
http://en.wikipedia.org/wiki/Magellanic_Clouds

Follow the links in the article for more info.
 
Ohhh I need a dark sky site for the companion galaxy, I can see Andromeda galaxy easily through the scope from home, but need to trave 30 mins to the nth side of the city to be able to see it naked eye

Due to the poor health, I haven't done any nite time astronomy this winter that we are nearing the end of :( ... not sad about the end of winter, but I did want to give the then new scope a good work out, but didnt happen.
In the last 8 months its been used to the Venus transit and a partial lunar eclipse

To Tucson, is that a permanent move ? I did enjoy one nite under the Arizona sky back in 2006 and with a power cut that occurred just as we booked into the motel, we had ~ an hour or so of really dark sky :)

Dave
 
davenn said:
To Tucson, is that a permanent move ? I did enjoy one nite under the Arizona sky back in 2006 and with a power cut that occurred just as we booked into the motel, we had ~ an hour or so of really dark sky :)

Dave

Yep. Moving there from Shreveport/Bossier City Louisiana. Going up 2500 ft or so in altitude, and with like 1/10th the humidity, plus a less crowded area it should be WAY better. Unfortunately the weather was cloudy all last week when I was in Tucson apartment hunting and doing part of my Air Force Reserve duties, so I didn't get to see anything at all.
 
Philosophaie said:
In a recent article:

http://io9.com/5937295/astronomers-discover-milky-ways-twin-magellanic-clouds-and-all

Our galaxy is not particularly special in the universe.

Its pairing with the Magellanic Clouds — two irregular dwarf galaxies has other similar configurations out there.

I would like to confirm the existence and location of these irregular dwarf galaxies.

How close they are and the collision rate.

Also could we discuss the Magellanic Cloud. How big it is, where it is located.



The large Magellanic cloud is 160,000 LY distant
The small Magellanic cloud is 200,000 LY distant.

Their respective diameters are:

14,000 ly for the Large LMC
7,000 ly for the SMC
 
What constellation and designation(ex. NCG000) are the LMC and SMC respectively?
 
Drakkith said:
Yep. Moving there from Shreveport/Bossier City Louisiana. Going up 2500 ft or so in altitude, and with like 1/10th the humidity, plus a less crowded area it should be WAY better. Unfortunately the weather was cloudy all last week when I was in Tucson apartment hunting and doing part of my Air Force Reserve duties, so I didn't get to see anything at all.

Congrats on the move!
 
Philosophaie said:
What constellation and designation(ex. NCG000) are the LMC and SMC respectively?

there's a really nice and free planetarium ( starmap) program called Stellarium
I suggest you download it and start to familarise yourself with the night sky.

This program will answer all your questions ... its time for you to do some research for yourself :)

Dave
 

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