Globular clusters are my absolute favorite telescope targets. Okay, Saturn, and then globular clusters. And that’s why I’ve absolutely fallen in love with this amazing picture from the European Southern Observatory of the globular cluster M55, located in the constellation Sagittarius. In fact, it’s my new desktop wallpaper (it should be yours too, click here and download the screensize that fits your monitor)
Globular clusters contain vast numbers of stars clumped together in a tight area. In the case of M55, there are about 100,000 stars grouped up within a sphere only 100 light-years across. Astronomers know that globular clusters are old, almost as old as the Universe itself. In fact, for the longest time, astronomers calculated the age of globular clusters to be older than the estimated age of the Universe. Of course, there was an incorrect measurement there, and astronomers eventually aligned the age of globular clusters and the Universe.
M55 is thought to have formed 12.3 billion years ago, when the Universe was less than 3 billion years old. The most ancient stars in the cluster burned out a long time ago, detonating as supernovae. We’re now left with the cooler, lower mass stars, which slowly wink out one-by-one becoming white dwarfs as they proceed through the full stellar life cycle. Our own Sun is only halfway through its own lifespan, before it runs out of hydrogen fuel and becomes a white dwarf.
Remove All Ads on Universe Today
Join our Patreon for as little as $3!
Get the ad-free experience for life
There are at least 160 globular clusters scattered across the Milky Way, grouped up more towards our galaxy’s core. We can only see some of the clusters because the bright core of the Milky Way obscures our view to objects on the other side. But other galaxies, with their own globular clusters show us what our own galaxy probably looks like from afar.
M55 is part of the Messier catalog; a collection of objects that looked comet-like to the eyes of Charles Messier, a French astronomer working in the 18th century. Messier recorded a list of more than 100 objects which could be confused as comets: galaxies, clusters, and nebulae.
Want to see M55 on your own? You’ll need at least a pair of 50 mm binoculars or a small telescope, some nice dark skies, and a clear view to the constellation Sagittarius. Sagittarius looks exactly like a teapot in the sky, hovering above the southern horizon in summer. The further south you go, the higher Sagittarius will be in the sky.
But you’ll never see a view or take an image as detailed as this photo. That’s because it was captured with the ESO’s 4.1-metre (13.4 foot) Visible and Infrared Survey Telescope for Astronomy (VISTA) at ESO’s Paranal Observatory in northern Chile.
Original Source: ESO News Release
11 Replies to “M55 — Or a Swarm of Angry Bees?”
According to the survey, France has about 2.6 million millionaires,that is most in European countries .After the Outlander win the presidential election , Maybe the rich will fear the outbreak of the exodus. In fact, many multinational corporations before the election, one after another continued to headquarters out of Paris, the transfer tax rate is relatively low, Luxembourg, Hong Kong, even the United Kingdom. ”
Well-known French brand Louis Vuitton Handbags On Sale boutique group LVMH , also reported to consider To the headquarters moved to London from Paris, it is necessary to avoid heavy taxes, and increased high tax rates make LV headquarters in Paris, it is difficult to find the Senior Management .
Worldwide more than $100 billion worth of counterfeit products, from Louis Vuitton Replica Handbags to Rolex watches, are sold every year. I have developed a great idea, which will allow shoppers to check the authenticity of the product by using their smartphone before they buy the Louis Vuitton Replica. It will add only a fraction of the cost of the product for the manufacturer, who will be more than happy to pay this little extra cost to protect their brand and increase their sales. However, I do not yet have a working prototype, which requires significant investment. I do not know how and who to approach for venture capital funding. I am so confident about the success of this idea that I feel like selling my house and investing in this technology. Your advice will be very much appreciated.
Louis vuitton sent their fall/winter 2012/2013 collection down the Milan Fashion Week runway today and it featured a much darker, more gothic and vampire-like color palette than what was shown by the iconic design house for fall 2011. One year
ago louis vuitton Handbags showed bright colors and blocked them together, helping to explode the current color blocking trend. For fall 2012, Gucci moved away from the trend they started and let black rule the runway.
Telescopically, M55 ( NGC 6809) is ‘loose as a goose’, and is one of the easiest to resolve!
It is moderately sized at about 20 arcmin across – and the same size as M13 – but is eight times smaller in area than the largest, Omega Centauri.
It’s amazing but some people is making cash on computer, Even 250$ in a day or more. My senior is working at laptop and last week he brought 2700$ to home, Did you tour this link===>>??http://must2join.blogspot.com
I assume all, or a good portion of galaxies have their globular clusters colonies, or am I mistaken ?
On highly resolved and deep images of eliptical galaxies you can spot hundreds or even thousands of globular clusters swarming around them. At distance they look just like stars in the outskirt of the galaxies.
Man, that was one of the first I found worthwhile as a background, aside from Cassini shots of the Jupiter system…
what Robin answered I’m alarmed that some one able to earn $4067 in 4 weeks on the computer. did you look at this website ===>>??http://freelancer111.blogspot.com
I like seeking out the galaxies visible in the (distant) background around M 55. Usually I don’t think of Sagittarius when it comes to observing galaxies (except, possibly, Barnard’s Galaxy: http://en.wikipedia.org/wiki/Barnard%27s_Galaxy ).
Thank you Fraser, I also now have this as my wallpaper!
Comments are closed.