четверг, 27 декабря 2018 г.

2018 December 27 The Great Carina Nebula Image Credit &…


2018 December 27


The Great Carina Nebula
Image Credit & Copyright: Maicon Germiniani


Explanation: A jewel of the southern sky, the Great Carina Nebula, also known as NGC 3372, spans over 300 light-years, one of our galaxy’s largest star forming regions. Like the smaller, more northerly Great Orion Nebula, the Carina Nebula is easily visible to the unaided eye, though at a distance of 7,500 light-years it is some 5 times farther away. This gorgeous telescopic close-up reveals remarkable details of the region’s central glowing filaments of interstellar gas and obscuring cosmic dust clouds. The field of view is over 50 light-years across. The Carina Nebula is home to young, extremely massive stars, including the stars of open cluster Trumpler 14 (above and left of center) and the still enigmatic variable Eta Carinae, a star with well over 100 times the mass of the Sun. Eta Carinae is the brightest star, centered here just below the dusty Keyhole Nebula (NGC 3324). While Eta Carinae itself maybe on the verge of a supernova explosion, X-ray images indicate that the Great Carina Nebula has been a veritable supernova factory.


∞ Source: apod.nasa.gov/apod/ap181227.html


NASA Satellites Spot Young Star in Growth Spurt


NASA – Spitzer Space Telescope patch.


Dec. 27, 2018



Image above: This illustration shows a young star undergoing a type of growth spurt. Left panel: Material from the dusty and gas-rich disk (orange) plus hot gas (blue) mildly flows onto the star, creating a hot spot. Middle panel: The outburst begins — the inner disk is heated, more material flows to the star, and the disk creeps inward. Right panel: The outburst is in full throttle, with the inner disk merging into the star and gas flowing outward (green). Image Credits: Caltech/T. Pyle (IPAC).


An adolescent star in the midst of a dramatic growth phase has been observed with the help of two NASA space telescopes. The youngster belongs to a class of stars that gain mass when matter swirling around the star falls onto its surface. The in-falling matter causes the star to appear about 100 times brighter. Astronomers have found only 25 stars in this class, and only about half of those have been observed during an outburst.



Spitzer Space Telescope. Animation Credits: NASA/JPL-Caltech

The new findings shed light on some long-standing mysteries surrounding the evolution of young stars, including how they acquire all of their mass. This rarely observed outbursting behavior could be common but might typically be hidden from our view by thick clouds of dust.


The newfound star, called Gaia 17bpi, was first spotted by the European Space Agency’s Gaia satellite, but NASA’s asteroid-hunting Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) satellite serendipitously observed the star’s brightening at the same time that Gaia did. Additional searches in NEOWISE’s data archives and the archives of NASA’s infrared-sensing Spitzer Space Telescope showed that these spacecraft had detected the flare-up in infrared light more than one year earlier.



Image above: The location of Gaia 17bpi, which lies in the Sagitta constellation, is indicated in this image taken by NASA’s Spitzer Space Telescope. Image Credits: NASA/JPL-Caltech/M. Kuhn (Caltech).


You can read the full story from the Caltech news office here: http://www.caltech.edu/news/young-star-caught-fit-growth-84666. Caltech manages the Jet Propulsion Laboratory in Pasadena, California, for NASA. The research is detailed in a new study titled “Gaia 17bpi: An FU Ori Type Outburst.”: https://authors.library.caltech.edu/91888/


JPL manages and operates the NEOWISE mission for NASA’s Planetary Defense Coordination Office within the Science Mission Directorate in Washington. JPL also manages the Spitzer Space Telescope mission for NASA’s Science Mission Directorate in Washington. Science operations are conducted at the Spitzer Science Center at Caltech in Pasadena, California. Data are archived at the Infrared Science Archive housed at IPAC at Caltech.


Related links:


Gaia: http://sci.esa.int/gaia/


NEOWISE: http://www.nasa.gov/mission_pages/neowise/main/index.html


Spitzer Space Telescope: http://www.nasa.gov/mission_pages/spitzer/main/index.html


Images (mentioned), Animation (mentioned), Text, Credits: NASA/Tony Greicius/JPL/Calla Cofield.


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Amphorae, Candle Holder, Bowls and Mortaria (Kitchen Mixing Bowls), Vindolanda Roman...










Amphorae, Candle Holder, Bowls and Mortaria (Kitchen Mixing Bowls), Vindolanda Roman Fort, Hadrian’s Wall, Northumberland, 22.12.18.


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Ilkley Moor, 24.12.18.

Ilkley Moor, 24.12.18.



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The Soyuz-2.1a launch vehicle successfully launched from Vostochny spaceport


ROSCOSMOS logo.


Dec. 26, 2018



Soyuz-2.1a carrying Kanopus-V №5 & Kanopus-V №6 launch

Today, on December 27, 2018, at 5:07 Moscow time, the launch vehicle Soyuz-2.1a with the upper stage (RB) Fregat and the remote sensing spacecraft (ERS) of the series “Canopus V” № 5 and 6.



Soyuz-2.1a launches Kanopus-V №5, Kanopus-V №6 and 26 small satellites

The space payloads in the composition of the upper unit “Frigate”, the Kanopus-V devices No. 5 and No. 6, as well as 26 satellites were launched into an open-loop near-earth orbit.




Kanopus-V

The separation of the two spacecraft Earth remote sensing “Canopus-V” is planned at 06:06 and 06:12 Moscow time, small satellites – at 07:30 and 09:25 Moscow time.



A Soyuz-2.1a (Союз-2.1а) launch vehicle, with a Fregat (Фрегат) upper stage, launched the Kanopus-V №5 (Канопус-В № 5) and Kanopus-V №6 (Канопус-В № 6) remote sensing satellites from the Vostochny Cosmodrome in Amur Oblast, Russia, on 27 December 2018, at 02:07 UTC (11:07 local time). As secondary payloads, Soyuz-2.1a launched 26 small satellites: GRUS (Axelspace), Flock 3k (twelve Planet Labs Inc 3U Dove CubeSats), ZACube-2, Lume-1 cubesat, D-Star ONE (iSat), D-Star ONE (Sparrow), eight Lemur-class satellites (Spire Global Inc) and UWE-4 (Würzburg University).


Roscosmos Press Release: https://www.roscosmos.ru/25893/


Images, Video, Text, Credits: Roscosmos/Günter Space Page/Roscosmos TV/SciNews/Orbiter.ch Aerospace/Roland Berga.


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CASC – Long March-3C launches TJS-3 satellite


CASC – China Aerospace Science and Technology Corporation logo.


Dec. 26, 2018



Long March-3C launches TJS-3 satellite

A Long March-3C carrier rocket (Changzheng 3C, CZ-3C, 长征三号丙) launched the third communication technology test satellite (TJS-3) from the Xichang Satellite Launch Center in southwest China’s Sichuan Province, on 24 December 2018, at 16:53 UTC (25 December, 00:53 Beijing time).



Long March-3C launches TJS-3 satellite

According to official sources, the satellite entered its designated orbit.


The satellite is a product of Thomas Jefferson High School for Science and Technology’s Systems Engineering class. During this three year long endeavor approximately 30 high school students ranging from sophomores to seniors will have contributed. The project is broken down into individual subsystems that are assigned to groups of students. Each subsystem is assigned an industry representative that acts as a mentor to the students. In the end TJ3Sat will act as an educational resource for K-12 education worldwide.



TJS-3 satellite

As the satellite orbits the Earth it will beam back basic telemetry data (voltages, temperatures, CPU status,etc.) and host a voice synthesizer that will transmit uploaded text messages in a Steven Hawking-esk voice. The primary goal is to serve as a resource and educational outreach tool that will hopefully inspire other educational institutions to explore the wonders of Space.


For more information about China Aerospace Science and Technology Corporation (CASC), visit: http://english.spacechina.com/n16421/index.html


Images, Video, Text, Credits: CASC/SciNews/Gunter’s Space Page/Orbiter.ch Aerospace.


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Roman Footwear Photoset 1, Vindolanda Roman Fort, Hadrian’s Wall, Northumberland,...











Roman Footwear Photoset 1, Vindolanda Roman Fort, Hadrian’s Wall, Northumberland, 22.12.18.


The collection of preserved leather footwear from Vindolanda is unprecedented due to the special conditions of the soil in the area, offering us a fascinating glimpse into what Roman life at the empire’s edge was wearing. The collection includes the shoes, boots and sandals of men, women and children.


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Roman Footwear Photoset 2, Vindolanda Roman Fort, Hadrian’s Wall, Northumberland,...


Roman Footwear Photoset 2, Vindolanda Roman Fort, Hadrian’s Wall, Northumberland, 22.12.18.











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Roman Footwear Photoset 3, Vindolanda Roman Fort, Hadrian’s Wall, Northumberland,...











Roman Footwear Photoset 3, Vindolanda Roman Fort, Hadrian’s Wall, Northumberland, 22.12.18.


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