Found images: 2016 September
Found images: 2016 September
Have you seen a great image or video somewhere that you think would make a great APOD? Nominate it for APOD! Please post as much information here as you have about the image/video with a link to any source(s) for it you know of here, and the editors will take a look.
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Re: Found images: 2016 September
Rosette Nebula (NGC 2237)
http://www.atacama-photographic-observatory.com
Copyright: Thierry Demange, Richard Galli and Thomas Petit
http://www.atacama-photographic-observatory.com
Copyright: Thierry Demange, Richard Galli and Thomas Petit
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Re: Found images: 2016 September
Slooh: 2016 Annular Eclipse over Africa
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
alive to the gentle breeze of communication, and please stop being such a jerk. — Garrison Keillor
ESO: Why So Blue? (Messier 98)
Why So Blue? (Messier 98)
ESO Picture of the Week | 2016 Sep 05
ESO Picture of the Week | 2016 Sep 05
[img3="Credit: ESO; Acknowledgement: Flickr user jbarring"]https://cdn.eso.org/images/large/potw1636a.jpg[/img3][hr][/hr]The colour blue has many associations — coldness, sadness, serenity. However, the colour holds a completely different meaning for astronomers, as demonstrated by the edge-on spiral galaxy Messier 98.
Messier 98, also known as NGC 4192, is located approximately 50 million light-years away in the constellation of Coma Berenices (Berenice's Hair). In this spectacular image from ESO’s New Technology Telescope (NTT), the galaxy’s perimeter, rippled with gas and dust, is dotted with pockets of blueish light. These are regions filled with very young stars, which are so hot that they glow with a bright blue hue. These young stars are burning at such high temperatures that they are emitting fierce radiation, burning away some of the dense material that surrounds them. In total, Messier 98 is thought to contain one trillion stars!
The NTT is a 3.58-metre telescope at the La Silla Observatory, which pioneered the use of active optics and was the first in the world to have a computer-controlled main mirror.
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
alive to the gentle breeze of communication, and please stop being such a jerk. — Garrison Keillor
HEIC: Into the Storm (LHA 120-N 159)
Into the Storm (LHA 120-N 159)
ESA Hubble Picture of the Week | 2016 Sep 05
ESA Hubble Picture of the Week | 2016 Sep 05
[img3="Credit: ESA/Hubble & NASA"]https://cdn.spacetelescope.org/archives ... w1636a.jpg[/img3][hr][/hr]This shot from the NASA/ESA Hubble Space Telescope shows a maelstrom of glowing gas and dark dust within one of the Milky Way’s satellite galaxies, the Large Magellanic Cloud (LMC).
This stormy scene shows a stellar nursery known as N159, an HII region over 150 light-years across. N159 contains many hot young stars. These stars are emitting intense ultraviolet light, which causes nearby hydrogen gas to glow, and torrential stellar winds, which are carving out ridges, arcs, and filaments from the surrounding material.
At the heart of this cosmic cloud lies the Papillon Nebula, a butterfly-shaped region of nebulosity. This small, dense object is classified as a High-Excitation Blob, and is thought to be tightly linked to the early stages of massive star formation.
N159 is located over 160 000 light-years away. It resides just south of the Tarantula Nebula (heic1402), another massive star-forming complex within the LMC. It was previously imaged by Hubble’s Wide Field Planetary Camera 2, which also resolved the Papillon Nebula for the first time.
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
alive to the gentle breeze of communication, and please stop being such a jerk. — Garrison Keillor
Re: ESO: Why So Blue? (Messier 98)
M98 is not very blue. Its colors are .810 (B-V) and .310 (U-B). Both values are unremarkable. The far infrared magnitude of M98 is 0.2 magnitudes brighter than its B magnitude. That, too, is quite average.bystander wrote:Why So Blue? (Messier 98)
ESO Picture of the Week | 2016 Sep 05[img3="Credit: ESO; Acknowledgement: Flickr user jbarring"]https://cdn.eso.org/images/large/potw1636a.jpg[/img3][hr][/hr]The colour blue has many associations — coldness, sadness, serenity. However, the colour holds a completely different meaning for astronomers, as demonstrated by the edge-on spiral galaxy Messier 98.
Messier 98, also known as NGC 4192, is located approximately 50 million light-years away in the constellation of Coma Berenices (Berenice's Hair). In this spectacular image from ESO’s New Technology Telescope (NTT), the galaxy’s perimeter, rippled with gas and dust, is dotted with pockets of blueish light. These are regions filled with very young stars, which are so hot that they glow with a bright blue hue. These young stars are burning at such high temperatures that they are emitting fierce radiation, burning away some of the dense material that surrounds them. In total, Messier 98 is thought to contain one trillion stars!
The NTT is a 3.58-metre telescope at the La Silla Observatory, which pioneered the use of active optics and was the first in the world to have a computer-controlled main mirror.
If M98 looks blue in the ESO image, it just means that whoever processed the picture has "turned up" the blue channel. Nothing more.
There are many interestingly blue galaxies out there, but M98 is not one of them.
Ann
Color Commentator
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Re: ESO: Why So Blue? (Messier 98)
Since I like lists, could you give me a top 10 of your favourite or most interesting blue galaxies?Ann wrote:M98 is not very blue. Its colors are .810 (B-V) and .310 (U-B). Both values are unremarkable. The far infrared magnitude of M98 is 0.2 magnitudes brighter than its B magnitude. That, too, is quite average.bystander wrote:Why So Blue? (Messier 98)
ESO Picture of the Week | 2016 Sep 05[img3="Credit: ESO; Acknowledgement: Flickr user jbarring"]https://cdn.eso.org/images/large/potw1636a.jpg[/img3][hr][/hr]The colour blue has many associations — coldness, sadness, serenity. However, the colour holds a completely different meaning for astronomers, as demonstrated by the edge-on spiral galaxy Messier 98.
Messier 98, also known as NGC 4192, is located approximately 50 million light-years away in the constellation of Coma Berenices (Berenice's Hair). In this spectacular image from ESO’s New Technology Telescope (NTT), the galaxy’s perimeter, rippled with gas and dust, is dotted with pockets of blueish light. These are regions filled with very young stars, which are so hot that they glow with a bright blue hue. These young stars are burning at such high temperatures that they are emitting fierce radiation, burning away some of the dense material that surrounds them. In total, Messier 98 is thought to contain one trillion stars!
The NTT is a 3.58-metre telescope at the La Silla Observatory, which pioneered the use of active optics and was the first in the world to have a computer-controlled main mirror.
If M98 looks blue in the ESO image, it just means that whoever processed the picture has "turned up" the blue channel. Nothing more.
There are many interestingly blue galaxies out there, but M98 is not one of them.
Ann
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Re: Found images: 2016 September
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Re: Found images: 2016 September
IC 1283-4
http://www.atacama-photographic-observatory.com
Copyright: Thierry Demange, Richard Galli and Thomas Petit
http://www.atacama-photographic-observatory.com
Copyright: Thierry Demange, Richard Galli and Thomas Petit
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Re: Found images: 2016 September
In looking at star clusters posted initially by bystander today I was searching for the densest star cluster. The Arches & Quintuplet clusters appear to take that distinction as far as I can see.
Freddy's Felicity "Only ascertain as a cat box survivor"
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Re: Found images: 2016 September
NGC 4490
http://www.noao.edu/image_gallery/html/im1276.html
Copyright: T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOAO/AURA/NSF)
http://www.noao.edu/image_gallery/html/im1276.html
Copyright: T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOAO/AURA/NSF)
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Re: ESO: The Future Began Here (NTT)
The Future Began Here (NTT)
ESO Picture of the Week | 2016 Sep 12
ESO Picture of the Week | 2016 Sep 12
[c][attachment=0]potw1637a[1].jpg[/attachment][/c][hr][/hr]This week’s picture was taken by ESO Photo Ambassador Babak Tafreshi at ESO’s La Silla Observatory. The bright lane of the Milky Way can be seen streaking across the skies above the Chilean Atacama Desert, beneath which sits the New Technology Telescope (NTT), one of the ten active telescopes located at the observatory.
La Silla is the oldest observation site used by ESO — it has been an ESO stronghold since the 1960s. The site houses a number of telescopes, two of which are operated solely by ESO: the aforementioned NTT, the star of this image, and the 3.6-metre ESO telescope.
Joining this duo are many other collaborative telescopes, operated by various ESO Member States — the Swiss 1.2-metre Leonhard Euler Telescope, the Rapid Eye Mount (REM) telescope, the TAROT gamma-ray-burst chaser, the planet-hunting TRAPPIST, the MPG/ESO 2.2-metre telescope, the ESO 1-metre Schmidt telescope, the ESO 1-metre, and the Danish 1.54-metre telescope.
The NTT saw first light in 1989. It was a key player in ESO’s development of active optics, a technique used by astronomers to control the shape of the main mirror and correct for deformations that may affect image quality. Today, active optics is — or will be — used by all major modern telescopes, including ESO’s Very Large Telescope (VLT) and the forthcoming European Extremely Large Telescope (E-ELT). ...
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
alive to the gentle breeze of communication, and please stop being such a jerk. — Garrison Keillor
Re: Found images: 2016 September
Standing Out from the Crowd (PGC 83677)
ESA Hubble Picture of the Week | 2016 Sep 12
ESA Hubble Picture of the Week | 2016 Sep 12
[img3="Credit: ESA/Hubble & NASA. Acknowledgement: Judy Schmidt (geckzilla)"]https://cdn.spacetelescope.org/archives ... w1637a.jpg[/img3][hr][/hr]A lone source shines out brightly from the dark expanse of deep space, glowing softly against a picturesque backdrop of distant stars and colourful galaxies.
Captured by the NASA/ESA Hubble Space Telescope’s Advanced Camera for Surveys (ACS), this scene shows PGC 83677, a lenticular galaxy — a galaxy type that sits between the more familiar elliptical and spiral varieties in the Hubble sequence.
This image was obtained as part of the Coma Cluster Survey. It reveals both the relatively calm outskirts and intriguing core of PGC 83677. Here, studies have uncovered signs of a monstrous black hole that is spewing out high-energy X-rays and ultraviolet light.
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
alive to the gentle breeze of communication, and please stop being such a jerk. — Garrison Keillor
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Re: Found images: 2016 September
NGC 4567-8
http://www.astrobin.com/255481/
Copyright: Mark Elvov This galaxy pair is also known as the Siamese Twins.
http://www.astrobin.com/255481/
Copyright: Mark Elvov This galaxy pair is also known as the Siamese Twins.
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Re: Found images: 2016 September
Seagull Nebula (IC 2177)
http://www.cxielo.ch/gallery/v/nebulae/ ... x.jpg.html
Copyright: Martin Rusterholz NGC 2343 is the open cluster near the centre of the image.
http://www.cxielo.ch/gallery/v/nebulae/ ... x.jpg.html
Copyright: Martin Rusterholz NGC 2343 is the open cluster near the centre of the image.
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Re: Found images: 2016 September
Cocoon Nebula (IC 5146)
http://www.straightontillmorning.me/Ast ... vWxsH3M/X2
Copyright: Hytham Abu-Safieh
http://www.straightontillmorning.me/Ast ... vWxsH3M/X2
Copyright: Hytham Abu-Safieh
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Re: Found images: 2016 September
Copyright Jens Zippel & Frank Iwaszkiewicz
Cederblad 214
![Image](https://www.deep-sky-astroteam.de/sites/default/files/002-galerien/001-deepsky/Ced_214_Hubble_Final.jpg)
https://www.deep-sky-astroteam.de/de/cederblad-214-0
SH2-114 The Flying Dragon Nebula
![Image](https://www.deep-sky-astroteam.de/sites/default/files/styles/orginal/public/002-galerien/001-deepsky/SH2-114_HaRGB_Final_0.jpg?itok=o6LsTuhq)
https://www.deep-sky-astroteam.de/de/sh2-114
Cederblad 214
![Image](https://www.deep-sky-astroteam.de/sites/default/files/002-galerien/001-deepsky/Ced_214_Hubble_Final.jpg)
https://www.deep-sky-astroteam.de/de/cederblad-214-0
SH2-114 The Flying Dragon Nebula
![Image](https://www.deep-sky-astroteam.de/sites/default/files/styles/orginal/public/002-galerien/001-deepsky/SH2-114_HaRGB_Final_0.jpg?itok=o6LsTuhq)
https://www.deep-sky-astroteam.de/de/sh2-114
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Re: Found images: 2016 September
This is a magnificent image, possibly the best of this region! Also try to find the hidden planetary nebula Kronberger 26!Deep-Sky-Astroteam wrote:Copyright Jens Zippel & Frank Iwaszkiewicz
SH2-114 The Flying Dragon Nebula
https://www.deep-sky-astroteam.de/sites ... k=o6LsTuhq
https://www.deep-sky-astroteam.de/de/sh2-114
Also in your deep sky gallery, how about dividing it into nebulae and galaxies?