GPS News  
STELLAR CHEMISTRY
Festive nebulae light up Milky Way Galaxy satellite
by Staff Writers
Munich, Germany (SPX) Dec 22, 2016


This glowing nebula, named NGC 248, is located within the Small Magellanic Cloud, a satellite galaxy of the Milky Way and about 200 000 light-years from Earth. The nebula was observed with Hubble's Advanced Camera for Surveys in Sept. 2015, as part of a survey called the Small Magellanic cloud Investigation of Dust and Gas Evolution (SMIDGE). Image courtesy NASA, ESA, STScI, K. Sandstrom (University of California, San Diego), and the SMIDGE team. For a larger version of this image please go here.

The sheer observing power of the NASA/ESA Hubble Space Telescope is rarely better illustrated than in an image such as this. This glowing pink nebula, named NGC 248, is located in the Small Magellanic Cloud, just under 200 000 light-years away and yet can still be seen in great detail.

Our home galaxy, the Milky Way, is part of a collection of galaxies known as the Local Group. Along with the Andromeda Galaxy , the Milky Way is one of the Group's most massive members, around which many smaller satellite galaxies orbit. The Magellanic Clouds are famous examples, which can easily be seen with the naked eye from the southern hemisphere.

Within the smaller of these satellite galaxies, the Small Magellanic Cloud, the NASA/ESA Hubble Space Telescope captured two festive-looking emission nebulae, conjoined so they appear as one. Intense radiation from the brilliant central stars is causing hydrogen in the nebulae to glow pink.

Together the nebulae are called NGC 248. They were discovered in 1834 by the astronomer Sir John Herschel. NGC 248 is about 60 light-years long and 20 light-years wide. It is among a number of glowing hydrogen nebulae in the Small Magellanic Cloud, which lies in the southern constellation of Tucana(The Toucan), about 200 000 light-years away.

The nebula was observed as part of a Hubble survey, the Small Magellanic cloud Investigation of Dust and Gas Evolution (SMIDGE). In this survey astronomers are using Hubble to probe the Small Magellanic Cloud to understand how its dust - an important component of many galaxies and related to star formation - is different from the dust in the Milky Way.

Thanks to its relative proximity, the Small Magellanic Cloud is a valuable target. It also turns out to have only between a fifth and a tenth of the amount of heavy elements that the Milky Way has, making the dust similar to what we expect to see in galaxies in the earlier Universe.

This allows astronomers to use it as a cosmic laboratory to study the history of the Universe in our cosmic backyard. These observations also help us to understand the history of our own galaxy as most of the star formation happened earlier in the Universe, at a time when the percentage of heavy elements in the Milky Way was much lower than it is now.

The data used in this image were taken with Hubble's Advanced Camera for Surveys in September 2015.


Comment on this article using your Disqus, Facebook, Google or Twitter login.


Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only


.


Related Links
Hubble Information Centre
Stellar Chemistry, The Universe And All Within It






Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Previous Report
STELLAR CHEMISTRY
Record-Breaking Faint Satellite Galaxy Discovered
Hilo HI (SPX) Nov 22, 2016
An international team led by researchers from Tohoku University has found an extremely faint dwarf satellite galaxy of the Milky Way. The team's discovery is part of the ongoing Subaru Strategic Survey using Hyper Suprime-Cam. The satellite, named Virgo I, lies in the direction of the constellation Virgo. At the absolute magnitude of -0.8 in the optical waveband (Note), it may well be the ... read more


STELLAR CHEMISTRY
In Benin, 'Smart-Valleys' bring rice bounty

Many GMO studies have financial conflicts of interest

Corn yield modeling towards sustainable agriculture

S. Korea issues top bird flu alert

STELLAR CHEMISTRY
World's smallest radio receiver has building blocks the size of 2 atoms

Stamping technique creates tiny circuits with electronic ink

Electron highway inside crystal

Further improvement of qubit lifetime for quantum computers

STELLAR CHEMISTRY
360-Degree Airport Simulator Tests the Future of Air Traffic Control

Northrop Grumman completes E-2D Advanced Hawkeye flight test

US military resumes Osprey flights in Japan after crash

Raytheon to provide new F-16 mission computers for U.S. Air Force

STELLAR CHEMISTRY
Better road planning could boost food production while protect forests

VW reaches $1 bn compensation deal in 3.0-liter diesel case

VW settles Canada drivers' class action over emissions

Google's Waymo adds 100 Chryslers to self-driving fleet

STELLAR CHEMISTRY
China's 2017 economic growth to slow to 6.5 pct: study

Philippines taps China-backed AIIB to fix infrastructure

US antitrust regulators clear China-owned AMC to buy Carmike

China vows more 'flexible' yuan, less property speculation

STELLAR CHEMISTRY
Better road planning could boost food production while protect forests

Warming could slow upslope migration of trees

A roadmap for guiding development and conservation in the Amazon

Indonesia expands protection for peatlands, climate

STELLAR CHEMISTRY
There's a jet stream in our core

Space-based lidar shines new light on plankton

Revolutions in understanding the ionosphere, Earth's interface to space

Researchers dial in to 'thermostat' in Earth's upper atmosphere

STELLAR CHEMISTRY
Nanocubes simplify printing and imaging in color and infrared

New aspect of atom mimicry for nanotechnology applications

ANU demonstrates 'ghost imaging' with atoms

Supersonic spray yields new nanomaterial for bendable, wearable electronics









The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us.