Found Images: 2018 February

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starsurfer
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Re: Found Images: 2018 February

Post by starsurfer » Sat Feb 17, 2018 9:48 am

NGC 3274
http://www.spacetelescope.org/images/potw1647a/
Copyright: ESA/Hubble & NASA, D. Calzetti

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Re: Found Images: 2018 February

Post by starsurfer » Sun Feb 18, 2018 5:43 pm

Abell 33
http://www.pbase.com/skybox/image/149295627
Copyright: Kevin Quin
Abell33.jpg
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Re: Found Images: 2018 February

Post by starsurfer » Mon Feb 19, 2018 10:03 am

Pencil Nebula (NGC 2736)
http://www.astro-austral.cl/imagenes/ne ... O/info.htm
Copyright: José Joaquín Pérez
max.jpg
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ESO: Venus Shines On

Post by bystander » Mon Feb 19, 2018 5:11 pm

Venus Shines On
ESO Picture of the Week | 2018 Feb 19
This image, taken by ESO Photo Ambassador Petr Horálek, shows the planet Venus shining brightly over ESO’s Paranal Observatory in Chile at twilight. The featured telescope is the Very Large Telescope’s Auxiliary Telescope 1, open and preparing itself to observe the night sky, which is splashed in shades of blue and orange.

ESO’s Very Large Telescope (VLT) comprises four 8.2-metre Unit Telescopes, and four 1.8-metre Auxiliary Telescopes (ATs) — like the one posing in the foreground of the image — whose captured light can be combined to form the VLT Interferometer (VLTI). By combining the light from multiple telescopes positioned in different places across the observatory site, the VLTI allows astronomers to see details up to 25 times finer than with the individual telescopes.

The light beams are then combined using a complex system of mirrors in underground tunnels where the light paths must be kept equal to distances less than 1/1000 mm over a hundred metres. This unbelievable technology means the VLTI can reconstruct images with an angular resolution of milliarcseconds — equivalent to distinguishing the two headlights of a car at the distance of the Moon.
Know the quiet place within your heart and touch the rainbow of possibility; be
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starsurfer
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Re: Found Images: 2018 February

Post by starsurfer » Tue Feb 20, 2018 11:40 am

Abell 2199
http://www.capella-observatory.com/Imag ... ll2199.htm
Copyright: Volker Wendel, Stefan Binnewies Josef Pöpsel

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Re: Found Images: 2018 February

Post by starsurfer » Sat Feb 24, 2018 11:19 am

LDN 1251
http://www.pbase.com/gbachmayer/image/164279463/
Copyright: Gerhard Bachmayer
164279463.eBMcRTDz.jpg
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Re: Found Images: 2018 February

Post by starsurfer » Sat Feb 24, 2018 11:23 am

Hen 2-111
http://www.sterntaucher.net/Bilderdateien/hen2-111.html
Copyright: Stephan Küppers
hen2_111.jpg
Hen 2-111 is the planetary nebula on the left, it has a large halo that was discovered in 1978. The blue open cluster near the right is NGC 5617 and the smaller one below it is Pismis 19.
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Re: Found Images: 2018 February

Post by starsurfer » Sat Feb 24, 2018 11:25 am

Lupus 4 cloud
http://www.starhopper.de/astrofoto/nam2 ... cloud.html
Copyright: Thomas Jäger
lupus4molecularcloud.jpg
This dark nebula is also catalogued as SL 7.
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Re: Found Images: 2018 February

Post by starsurfer » Sat Feb 24, 2018 11:27 am

Gum 41
https://www.eso.org/public/images/eso1413a/
Copyright: ESO
eso1413a.jpg
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Re: Found Images: 2018 February

Post by starsurfer » Sun Feb 25, 2018 6:29 pm

MeWe 1-2
http://astrodonimaging.com/gallery/mewe-1-2/
Copyright: Don Goldman
MeWe1_2.jpg
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Re: Found Images: 2018 February

Post by starsurfer » Mon Feb 26, 2018 2:20 pm


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ESO: Young Planet Creates a Scene (AS 209)

Post by bystander » Mon Feb 26, 2018 3:36 pm

Young Planet Creates a Scene
ESO Picture of the Week | ALMA | 2018 Feb 26
Nestled in the young Ophiuchus star-forming region, 410 light-years from the Sun, a fascinating protoplanetary disc named AS 209 is slowly being carved into shape. This wonderful image was captured using the high-resolution ALMA telescope, revealing a curious pattern of rings and gaps in the dust surrounding a young star.

Protoplanetary discs are dense, rotating planes of gas and dust that surround newly formed stars; providing the matter that one day becomes orbiting planets, moons and other minor bodies. At less than one million years old, this system is very young, but already two clear gaps are being sculpted from the disc.

The outer gap is deep, wide, and largely a dust-free zone, leading astronomers to believe that a giant planet almost the mass of Saturn is orbiting here — around 800 light-minutes from the central star, and more than three times the distance between Neptune and the Sun! As the planet carves out its path, dust piles up at the outer edge of its orbit, creating ever more defined rings in the disc. The thinner, inner dust gap could have been formed by a smaller planet, but astronomers have raised the intriguing possibility that the large and distant circling planet in fact created both paths.

This inferred Saturn-like planet so far from its central star raises fascinating questions about planet formation at the edges of protoplanetary discs on particularly short timescales.

ALMA continuum observations of the protoplanetary disk AS 209:
Evidence of multiple gaps opened by a single planet
- D. Fedele et al
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.
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HEIC: A Frenzy of Stars (IC 4710)

Post by bystander » Mon Feb 26, 2018 3:49 pm

A Frenzy of Stars
ESA Hubble Picture of the Week | 2018 Feb 26
Discovered in 1900 by astronomer DeLisle Stewart and here imaged by the NASA/ESA Hubble Space Telescope (HST), IC 4710 is an undeniably spectacular sight. The galaxy is a busy cloud of bright stars, with bright pockets — marking bursts of new star formation — scattered around its edges.

IC 4710 is a dwarf irregular galaxy. As the name suggests, such galaxies are irregular and chaotic in appearance, lacking central bulges and spiral arms — they are distinctly different from spirals or ellipticals. It is thought that irregular galaxies may once have been spirals or ellipticals, but became distorted over time through external gravitational forces during interactions or mergers with other galaxies. Dwarf irregulars in particular are important to our overall understanding of galactic evolution, as they are thought to be similar to the first galaxies that formed in the Universe.

IC 4710 lies roughly 25 million light-years away in the southern constellation of Pavo (The Peacock). This constellation is located in the southern skies and also contains the third-brightest globular cluster in the sky, NGC 6752, the spiral galaxy NGC 6744, and six known planetary systems (including HD 181433 which is host to a super-Earth).

The data used to create this image were gathered by Hubble’s Advanced Camera for Surveys (ACS).
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: 2018 February

Post by starsurfer » Tue Feb 27, 2018 9:29 am


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Re: Found Images: 2018 February

Post by starsurfer » Wed Feb 28, 2018 9:42 am

NGC 6935-7
https://www.flickr.com/photos/astro_gva ... 790282986/
Copyright: Geert Vanhauwaert
31790282986_737462a867_k.jpg
NGC 6935 is the galaxy on the right and NGC 6937 is the galaxy on the left.
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