Red light, blue light

The Horseshoe Nebula (Messier 17) consists of a huge cloud of glowing gas heated by stars created only one million years ago, in the collapse of a giant molecular cloud. The newborn hot stars in its center ionize ambient hydrogen which emits red light. At the same time, the blue light of the stars reflects off dust particles. The cloud also goes by the names of NGC 6618 and the Omega Nebula. It lies in the constellation of Sagittarius.

Image credit: Canada-France-Hawaii Telescope/Coelu


You may know this nebula as the Swan, the Lobster, the Horseshoe, or the Omega, and it is cataloged both as Messier 17 and NGC 6618. No matter what you call it, there is no denying the beauty of this stellar nursery. 

M17 is located in the constellation of Sagittarius and spans about 15 light-years. It’s around 5,000 light-years away and is estimated to contain 800 solar masses. 

The image found in this previous Universe post [] is well-known due to its vibrant colors, but this new view was captured by ex-NASA scientist Fred Herrmann of Huntsville, AL, USA. Herrmann used a Takahashi TOA-130 Telescope, STT-8300 Monochrome CCD Camera, and Ha and Oiii elemental filters for this image. 


Image: Fred Herrmann / Owl Mountain Observatory

Messier 17: Omega Nebula

Messier 17, also cataloged NGC 6618 and called the Omega Nebula, Swan Nebula, Horseshoe Nebula or Lobster Nebula, is a star forming region located about 5,500 light years away in the constellation Sagittarius. This view is about 100 light years across. The shape of the nebula was formed by stellar winds and light from massive, hot stars.

Messier 17 is one of the youngest and most active stellar nurseries for massive stars in the Milky Way. It contains dust filaments created from debris of supernovae and in the atmospheres of cool giant stars, as well as glowing hydrogen gas illuminated by radiation from the new stars. Dark globules in the nebula indicate systems just beginning to form stars and planets.

Image from NASA, information from NASA and ESO.


When I say I love to debate, I mean talking with people that has a different point of view and defends it with arguments. When you say you love to debate, you mean people agreeing with you or yelling louder and making personal accusations. “We don’t debate lately”, you say. Do I really need to tell why?

I’ve traveled the world with my family since I was just a little baby. Nothing crazier has ever happened then the time I’m about to narrate for you… terribly.

When we were in Italy (Me and my family, sister, me, Mom, and Dad) My dad was driving while my sister and I were eating our sandwiches when suddenly we were surrounded by Italy’s secret police, police, and pizza police, armed with machine guns, motorcycles, armored trucks and undercover cops (I really don’t know their departments of security). A lone officer walked up to our car which was yelling furiously in Italian. When he did reach the downed window of the driver seat, he discovered we were Iranian-Americans. We had to pull out the passports and documents to avoid arrest and so on. What we didn’t know was that we had driven into a restricted area which was a street next to a beautiful white cathedral. There apparently was a sign was blatantly said Restricted street, but we were too occupied looking at the cathedral than the more than obvious signs on the side of the road. We were able to leave the area without a crazy interrogation and we safely made it back to our hotel room.

From Astronomy Picture Of The Day; September 5, 2014:

A Sagittarius Starscape 
Terry Hancock (Down Under Observatory)

This rich starscape spans nearly 7 degrees on the sky, toward the Sagittarius spiral arm and the center of our Milky Way galaxy. A telescopic mosaic, it features well-known bright nebulae and star clusters cataloged by 18th century cosmic tourist Charles Messier. Still popular stops for skygazers M16, the Eagle (far right), and M17, the Swan (near center) nebulae are the brightest star-forming emission regions. With wingspans of 100 light-years or so, they shine with the telltale reddish glow of hydrogen atoms from over 5,000 light-years away. Colorful open star cluster M25 near the upper left edge of the scene is closer, a mere 2,000 light-years distant and about 20 light-years across. M24, also known as the Sagittarius Star Cloud, crowds in just left of center along the bottom of the frame, fainter and more distant Milky Way stars seen through a narrow window in obscuring fields of interstellar dust.

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Durango Public Library card will get you local business discounts during Sept. -

Durango Public Library card will get you local business discounts during Sept.KOB.comDURANGO, Colorado – For the month of September, patrons of the Durango Public Library will have 65 discounts or incentives to take advantage of. It’s all part of National Library Card month, and a way to boost local business. …read more

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