cluster

"Bethany: Is your house on fire, Clark? Clark: No, Aunt Bethany, those are the Christmas lights." -National Lampoon's Christmas Vacation Ahh, Christmas. It's easy to forget how much the invention of the light bulb in 1879 reduced the number of tree fires in people's homes. It was a mere three years later that people began decorating Christmas trees with strings of lights instead of candle flames, and as you can imagine, the reduction in open flames atop fresh kindling had its benefits, and caught on like wildfire. Trees now routinely sport previously unfathomable numbers of lights, limited…
"A sister is both your mirror - and your opposite." -Elizabeth Fishel With 110 deep-sky wonders to choose from in the Messier catalogue, our long-running series on Messier Monday promises to keep us busy for some time to come! As we've finally passed the winter solstice here in the Northern Hemisphere, many new spectacular sights await skygazers in the early part of the night. As it's also the 1-year anniversary of when we adopted a little sister for our dog from the local humane society, I thought it would only be fitting to highlight the little sister to last week's Messier object. Image…
"Where you used to be, there is a hole in the world, which I find myself constantly walking around in the daytime, and falling in at night. I miss you like hell." -Edna St. Vincent Millay It was just a little while ago that we were all speculating wildly -- and optimistically -- about Comet ISON, as it plunged towards the Sun from its origins in the very, very distant Solar System. As its perihelion date (the moment of closest approach to the Sun) drew near, you may have noticed something interesting about photos of the comet: it's tail appeared to get longer and longer! Image credit &…
"Anyone who keeps the ability to see beauty never grows old." -Franz Kafka The night sky is our window into the Universe beyond the Solar System, and in some cases, even beyond our own galaxy! Perhaps the oldest useful collection of deep-sky objects, the Messier catalogue showcases 110 of the most prominent night sky wonders, a full 42 of which are located beyond our own galaxy. Today, for Messier Monday, let's take a look at one of the true rarities of the Messier catalogue: a globular cluster that's not a part of our own galaxy! Image credit: Al Kelly of http://www.kellysky.net/; images…
“Once you have tasted flight, you will forever walk the Earth with your eyes turned skyward, for there you have been, and there you will always long to return.” -Leonardo da Vinci Welcome back to another exciting Messier Monday here on Starts With A Bang! As Comet ISON dives towards the Sun and a nearly perfect full Moon towers overhead, it's easy to forget about those wondrous deep-sky objects that are fixed, but the 110 prominent members of the Messier Catalogue are always on tap for dedicated skywatchers. Although the extended objects -- galaxies and nebulae -- are difficult to view with a…
"Books serve to show a man that those original thoughts of his aren't very new at all." -Abraham Lincoln It might be Veterans Day / Armistice Day all around the world, but it's still Messier Monday here on Starts With A Bang! We may have been fighting wars for all of human history, but nearly all of the 110 deep sky objects that make up the Messier Catalogue go back long before that. Image credit: Tenho Tuomi of Tuomi Observatory, via http://www.lex.sk.ca/. Today, we take an in-depth look at one of the brightest and closest star clusters in the entire night sky, one that -- despite being…
"Controversy is only dreaded by the advocates of error." -Benjamin Rush Welcome back to another Messier Monday! Each week, we take an in-depth look at one of the 110 deep-sky wonders of the Messier Catalogue, from distant galaxies to nearby star clusters, from nebulous star factories to ancient globular bunches, and from stellar remnants to the rare-but-interesting anomalies. There are only three such anomalous entries out of all 110 Messier objects, and today provides us with a fantastic opportunity to take an in-depth look at one of them. Image credit: The Messier Objects by Alistair Symon…
"Now, this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning." -Winston Churchill To kick off every week for nearly a year now, we've begun it with Messier Monday, where we take an in-depth look at the 110 deep-sky objects that make up the first elaborate catalogue of fixed night-sky wonders that could possibly be confused for transient comets. Originally, when first published, this catalogue was made up of 103 objects; the final 7 were added posthumously. Each one tells its own unique story, yet all of them tell a sliver of our own story,…
"A little knowledge that acts is worth infinitely more than much knowledge that is idle." -Khalil Gibran It’s time again for another Messier Monday! The Messier Catalogue was the original comprehensive and accurate catalogue of fixed, deep-sky objects visible to any dedicated (northern hemisphere) skywatcher with even the most primitive of astronomical equipment. Over the centuries, as our understanding of what we're looking at has improved, these 110 celestial wonders have provided classic examples of astronomical phenomena ranging from stellar corpses to new star-forming regions, from young…
"On a cosmic scale, our life is insignificant, yet this brief period when we appear in the world is the time in which all meaningful questions arise." -Paul Ricoeur Ask anyone who's looked up at a dark sky on a clear, moonless night, and you'll immediately hear tales about how incomprehensibly vast the Universe is. Image credit: Randy Halverson, flickr user dakotalapse, from http://dakotalapse.com/. But what you're looking at isn't much of the Universe at all. In fact, practically every point of light you see, including the vast swath of stars too dim to individually resolve, comes from…
"Pinwheel, pinwheel spinning around. Look at my Pinwheel and see what I found. Pinwheel, pinwheel, breezy and bright. Spin me good morning, spin me good night." -Janet Gardner It's time for another Messier Monday, where each week, one of the 110 deep-sky objects that make up the famed Messier Catalogue -- the first large, accurate catalogue of non-cometary objects -- gets an in-depth treatment. These objects are not only a good representation of the brightest deep-sky objects visible from Earth, they're a good sample of the different types of objects visible from any random location in the…
“God put me on this earth to accomplish a certain number of things. Right now I am so far behind that I will never die.” -Bill Watterson Welcome back to another Messier Monday, only here on Starts With A Bang! With each new Monday, we take an in-depth look at a prominently visible random object from Messier's catalogue of 110 deep-sky curiosities, objects that range from stellar corpses to star-forming regions, to open clusters, globular clusters, distant galaxies, and even a few anomalies! Image credit: Wikimedia Commons users Jim Cornmell and Zeimusu. The objects in Messier's catalogue…
"Every star may be a sun to someone." -Carl Sagan Welcome back to yet another Messier Monday! Each week, we highlight one of the 110 deep-sky objects that make up the Messier catalogue: Charles Messier's legacy to comet-hunters and amateur astronomers, pointing out some of the most easily visible deep-sky objects as seen from our vantage point on Earth. Image credit: Yvett Bass (M1-M55) and Josh Sanford (M56-M110), via Dan Bruton of SFASU. Once-a-year, around the new Moon nearest to the vernal equinox, many amateur astronomers around the world attempt to view all 110 objects in the same…
"If the sight of the blue skies fills you with joy, if the simplest things of nature have a message that you understand, rejoice, for your soul is alive." -Eleanora Duse Welcome to another Messier Monday, where each week we take a look at one of the 110 deep-sky objects that make up the Messier Catalogue! One of the most common type of object in this catalogue is the globular cluster -- referred to by Messier as a round nebula (since he couldn't resolve them into individual stars) -- of which there are 29 in the catalogue. Image credit: Deep Sky Observing, http://www.deepskyobserving.com…
"Always try to keep a patch of sky above your life." -Marcel Proust Welcome to another Messier Monday, where each week we take an in-depth look at one of the 110 deep sky objects that make up the Messier Catalogue! Messier was not the first person to try and make an accurate, large catalog of deep sky objects, but he was the first to successfully do so: most of his objects both actually exist, are deep sky objects, and had their positions recorded correctly. Image credit: © 2008 Space-and-Telescope.com. Most, that is, but not all. Today, we'll be looking at the open star cluster Messier 48…
"The thing's hollow—it goes on forever—and—oh my God—it's full of stars!" -Dave Bowman, 2001: A Space Odyssey Back in October, we began a new, weekly series here called Messier Monday. Each Monday, we've taken a look at one of the 110 deep-sky objects that make up the Messier Catalogue, nebulous objects that might potentially be confused with comets by unaware comet-hunters. Image credit: Lee Kelvin and Grant Miller, via http://star-www.st-and.ac.uk/~lsk9/. These objects include stellar remnants, star-forming nebulae, young star clusters, ancient globular clusters, and distant galaxies far…
"When your friends begin to flatter you on how young you look, it's a sure sign you're getting old." -Mark Twain Welcome to yet another installment of Messier Monday, where each week, I'll pick one of the 110 Messier Objects -- deep-sky objects catalogued to avoid confusion for comet hunters -- to highlight for you. Image(s) credit: SEDS -- http://messier.seds.org/. So far, we've taken a look at a supernova remnant, a young open star cluster, and an active star-forming nebula, a testament to the great diversity of these faint, fuzzy objects that might be easily confused with a comet. Today…
"It's a brilliant surface in that sunlight." - Neil Armstrong Indeed, all that glitters so brilliantly in the cosmos does so because of the stars that have formed throughout it. Image credit: NASA, ESA, and the Hubble SM4 ERO Team. Over the 14 billion-or-so years that our Universe has been around, we've formed hundreds of billions of stars in our galaxy alone. Image credit: ESO / Serge Brunier (TWAN), Frederic Tapissier. Given that our galaxy is just one of at least hundreds of billions in the observable Universe, the number of stars that have formed over our Universe's history is a…
"Not even light can escape such hollowing, this huge mass in a small space. Even the Milky Way with its open arms is said to have a black hole at its heart." -Susan B.A. Somers-Willett Our Milky Way is home to us all. With its hundreds of billions of stars, massive spiral arms, dust lanes, and orbiting globular clusters, it's no wonder that nearly everything we see in the night sky is contained within it. Image credit: All rights reserved by Flickr user Greg Booher. I say nearly everything, of course, because there are a few exceptions. The Andromeda Galaxy, for one, as well as the two…
"We don’t understand how a single star forms, yet we want to understand how 10 billion stars form." -Carlos Frenk The Universe has been around for a long time: nearly 14 billion years, to the best of our knowledge. When it was very young, there were absolutely zero stars in it, while today, there are hundreds of billions of galaxies, each of which contains anywhere from a few billion to many trillions of stars. Image credit: NASA, ESA, and the Hubble Heritage (STScI / AURA) - ESA / Hubble Collaboration The galaxy shown above, NGC 2841, is very similar to our own Milky Way. Approximately the…