Found images: 2017 March

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starsurfer
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Re: Found images: 2017 March

Postby starsurfer » Wed Mar 15, 2017 10:20 am

vdB7 and vdB9
http://astrophotography.aa6g.org/Astrophotos/vdb9-svs130-sx16.html
Copyright: Chuck Vaughn
vdb9.jpg
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starsurfer
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Re: Found images: 2017 March

Postby starsurfer » Thu Mar 16, 2017 11:48 am

IC 2087 and B22
http://www.astrosurf.com/ilizaso/orriak/3maila/IC2087%20B22_FSQ_U16m.htm
Copyright: Iñaki Lizaso
IC2087 B22.jpg
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Re: Found images: 2017 March

Postby starsurfer » Thu Mar 16, 2017 11:51 am

IC 417
http://www.astrobin.com/280542/B/
Copyright: Tero Turunen
58a5fc8b7c273b00e8e5b0b21a341166.1824x0.jpg
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Re: Found images: 2017 March

Postby starsurfer » Thu Mar 16, 2017 11:55 am

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Re: Found images: 2017 March

Postby starsurfer » Thu Mar 16, 2017 11:56 am


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ESO: Protostar Blazes and Reshapes Its Stellar Nursery

Postby bystander » Mon Mar 20, 2017 2:01 pm

Protostar Blazes and Reshapes Its Stellar Nursery
ESO Picture of the Week | 2017 Mar 20

This image, taken by the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile, shows glowing dust inside the protocluster NGC 6334I. Studying this star-forming cloud in the Cat’s Paw Nebula (NGC 6334) with both ALMA and the Submillimeter Array (SMA) in Hawaii astronomers could see that something dramatic had taken place, completely changing a stellar nursery over a surprisingly short period of time.

It is known that young stars form inside protoclusters when pockets of gas become so dense that they begin to collapse under their own gravity. Over time, discs of dust and gas form around these nascent stars and funnel material onto their surfaces helping them grow.

However, this new image from ALMA shows a massive protostar, nestled deep within this dust-filled stellar nursery, that is undergoing an intense growth spurt, most likely triggered by an avalanche of gas falling onto its surface. This new material feeding it is causing the protostar to shine nearly 100 times brighter than before.The discovery of this outburst supports the theory that young stars can undergo intense growth spurts that reshape their surroundings.

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HEIC: Defying Cosmic Convention (NGC 3447)

Postby bystander » Mon Mar 20, 2017 2:10 pm

Defying Cosmic Convention
ESA Hubble Picture of the Week | 2017 Mar 20

Some galaxies are harder to classify than others. Here, Hubble’s trusty Wide Field Camera 3 (WFC3) has captured a striking view of two interacting galaxies located some 60 million light-years away in the constellation of Leo (The Lion). The more diffuse and patchy blue glow covering the right side of the frame is known as NGC 3447 — sometimes NGC 3447B for clarity, as the name NGC 3447 can apply to the overall duo. The smaller clump to the upper left is known as NGC 3447A.

The trouble with space is that it is, to state the obvious, really, really big. Astronomers have for hundreds of years been discovering and naming galaxies, stars, cosmic clouds and more. Unifying and regulating the conventions and classifications for everything ever observed is very difficult, especially when you get an ambiguous object like NGC 3447, which stubbornly defies easy categorisation.

Overall, we know NGC 3447 comprises a couple of interacting galaxies, but we’re unsure what each looked like before they began to tear one another apart. The two sit so close that they are strongly influenced and distorted by the gravitational forces between them, causing the galaxies to twist themselves into the unusual and unique shapes seen here. NGC 3447A appears to display the remnants of a central bar structure and some disrupted spiral arms, both properties characteristic of certain spiral galaxies. Some identify NGC 3447B as a former spiral galaxy, while others categorise it as being an irregular galaxy.
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Re: Found images: 2017 March

Postby starsurfer » Mon Mar 20, 2017 2:30 pm

IC 1295 and NGC 6712
http://www.astropilar.com.ar/nebulosas/IC1295_1.html
Copyright: Ezequiel Bellocchio
IC1295.jpg
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Re: Found images: 2017 March

Postby starsurfer » Tue Mar 21, 2017 10:51 am

Thor's Helmet (NGC 2359)
http://www.pbase.com/tango33/image/162677555
Copyright: Kfir Simon
162677555.v8p3pBNH.jpg
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Re: Found images: 2017 March

Postby starsurfer » Wed Mar 22, 2017 10:04 am

NGC 2442
http://www.billionsandbillions.com/meathook.html
Copyright: Warren Keller/SSRO
30436797644_c00964d33b.jpg

This galaxy was also catalogued a second time as NGC 2443.
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Re: Found images: 2017 March

Postby starsurfer » Thu Mar 23, 2017 11:21 am


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Re: Found images: 2017 March

Postby starsurfer » Fri Mar 24, 2017 9:03 am

NGC 1531-2
http://www.astrobin.com/236619/0/
Copyright: Ray Johnson
49bdbaf214822caf32aad7684e894dac.1824x0.jpg
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starsurfer
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Re: Found images: 2017 March

Postby starsurfer » Sat Mar 25, 2017 8:40 am


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Re: Found images: 2017 March

Postby starsurfer » Sun Mar 26, 2017 4:55 pm

CG 26-8 and CG 32-3
http://www.tvdavisastropics.com/astroimages-1_0000bb.htm
Copyright: Thomas Davis
astroimages-1_i00013b.jpg
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ESO: Up High

Postby bystander » Mon Mar 27, 2017 3:08 pm

Up High
ESO Picture of the Week | 2017 Mar 27

potw1713a[1].jpg

ESO's Very Large Telescope (VLT) looks more like a very small telescope in this image! From this perspective, it is difficult to make out the silhouettes of the VLT’s four 8.2-metre Unit Telescopes, which sit atop Cerro Paranal in the Chilean Atacama Desert.

The VLT’s location was very carefully selected. It is vital for the site to be as dry as possible, as water vapour can absorb infrared light and degrade observations. In order to reduce the effects of Earth’s atmosphere as far as possible, the VLT is at 2600 metres above sea level, minimising the amount of atmosphere sitting between it and the stars.

Due to its remote location, Paranal manages to be mostly undisturbed and light-free. Even the winding roads that lead through the Atacama Desert to the observation site are dimly lit to avoid unnecessary light pollution.

In this image, a trail of stars cuts across the the night sky like smoke rising from a celestial chimney. This is our home galaxy, the Milky Way. Towards the top of the image you can see a brighter and wider section — this is the star-filled galactic bulge, which sits at the heart of the Milky Way.
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HEIC: The NGC and Its Modern Counterpart

Postby bystander » Mon Mar 27, 2017 3:19 pm

The NGC and Its Modern Counterpart
ESA Hubble Picture of the Week | 2017 Mar 27

Some astronomical objects have endearing or quirky nicknames, inspired by mythology or their own appearance. Take, for example, the constellation of Orion (The Hunter), the Sombrero Galaxy, the Horsehead Nebula, or even the Milky Way. However, the vast majority of cosmic objects appear in astronomical catalogues, and are given rather less poetic names based on the order of their discovery.

Two galaxies are clearly visible in this Hubble image, the larger of which is NGC 4424. This galaxy is catalogued in the New General Catalogue of Nebulae and Clusters of Stars (NGC), which was compiled in 1888. The NGC is one of the largest astronomical catalogues, which is why so many Hubble Pictures of the Week feature NGC objects. In total there are 7840 entries in the catalogue and they are also generally the larger, brighter, and more eye-catching objects in the night sky, and hence the ones more easily spotted by early stargazers.

The smaller, flatter, bright galaxy sitting just below NGC 4424 is named LEDA 213994. The Lyon-Meudon Extragalactic Database (LEDA) is far more modern than the NGC. Created in 1983 at the Lyon Observatory it contains millions of objects. However, many NGC objects still go by their initial names simply because they were christened within the NGC first. No astronomer can resist a good acronym, and “LEDA” is more appealing than “the LMED”, perhaps thanks to the old astronomical affinity with mythology when it comes to naming things: Leda was a princess in Ancient Greek mythology.
Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk.
— Garrison Keillor

starsurfer
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Re: Found images: 2017 March

Postby starsurfer » Thu Mar 30, 2017 12:41 pm

NGC 6144
http://www.pbase.com/strongmanmike2002/ngc_6144_gc_near_antares
Copyright: Michael Sidonio
160817165.asNUnSA1.jpg
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Re: Found images: 2017 March

Postby starsurfer » Thu Mar 30, 2017 12:44 pm

Sh2-54
http://www.atacama-photographic-observatory.com/page_photo.php?id=51
Copyright: Thierry Demange, Richard Galli and Thomas Petit
sh2-54.jpg
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Re: Found images: 2017 March

Postby starsurfer » Thu Mar 30, 2017 12:46 pm

Little Dumbbell Nebula (M76)
http://www.cxielo.ch/gallery/v/nebulae/M76-cx.jpg.html
Copyright: Martin Rusterholz
M76.jpg
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Re: Found images: 2017 March

Postby starsurfer » Thu Mar 30, 2017 12:48 pm

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Re: Found images: 2017 March

Postby starsurfer » Thu Mar 30, 2017 12:51 pm

IC 348 and NGC 1333
http://www.astrostammtisch.com/galerie/displayimage.php?pid=1652
Copyright: Martin Dandrea
NGC1333.jpg
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Re: Found images: 2017 March

Postby jimstar » Thu Mar 30, 2017 6:21 pm

Subject: IC417 The Spider Nebula (Ha,OIII,SII)
Copyrights: James Collins
Image
Larger image URL:
http://jimstar11.com/IC417.jpg
Web Site: Meadow View Observatory
http://jimstar11.com/

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Re: Found images: 2017 March

Postby jimstar » Thu Mar 30, 2017 6:34 pm

Subject: NGC281 Pacman Nebula (Ha,OIII,SII)
Copyrights: James Collins
Image
Larger image URL:
http://jimstar11.com/NGC281psa_apod.jpg
Web Site: Meadow View Observatory
http://jimstar11.com/

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Re: Found images: 2017 March

Postby jimstar » Thu Mar 30, 2017 6:37 pm

Subject: IC1805 The Heart Nebula (Ha,OIII, SII)
Copyrights: James Collins
Image
Larger image URL:
http://jimstar11.com/IC1805a.jpg
Web Site: Meadow View Observatory
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