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A LA UNE

24 janvier 2014 5 24 /01 /janvier /2014 11:39

Après le succès du lancement de la mission sur Mars, l'ISRO se lance un nouveau défi. Prévu pour 2017-2018, la mission solaire de l'agence spatiale indienne a été revue à la hausse. Aditya-1 (soleil en Hindi), ne se limite plus à un simple satellite avec pour objet d'étudier la couronne solaire, mais à cinq charges utiles. Parmi les équipements : un télescope sensible aux ultraviolets, afin d'observer le disque solaire dans son ensemble et les tempêtes solaires, dont l'influence se fait sentir sur l'atmosphère terrestre. Le satellite comportera aussi un détecteur de particules pour échantillonner les vents solaires, un spectromètre à rayons X et des coronographes.

Pour l'Inde, il s'agit "de mieux étudier le soleil, et de se distinguer des projets des autres pays", explique un administrateur du Département of Space (ministère de l'Espace), dans une interview au Sunday Express. Le satellite d'Aditya-1 sera positionné, comme SoHo - l'Observatoire solaire et héliosphérique développé par l'Agence spatiale européenne et la Nasa - sur le point L1 (Lagrange L1), à approximativement 1,5 millions de kilomètres de la terre. Le coût n'est pas encore dévoilé. La majorité du budget sera consacrée à l'envoi du satellite vers le soleil.

L'Inde rejoindra ainsi "le club d'élite, jusque là composé de l'ESA et de la NASA" estime le Sunday Express. Alors que la dernière mission solaire était le fruit d'une collaboration entre ces deux agences, l'agence indienne s'affiche seule dans ce projet d'envergure.

 


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neo 12/06/2014 17:13



Why full moon on June 12-13 is called a Honey Moon




 


 



210










Tonight for June 12, 2014


Courtesy U.S. Naval Observatory





The June 12-13, 2014 full moon comes roughly one week before the June solstice. Like every full
moon, the June full moon has its own special quality. The June full moon travels low as seen from the N. Hemisphere (and high as seen from the S. Hemisphere) as it journeys from east to west
across the sky throughout the night. In fact, the June full moon mimics the path of the December sun.


In this hemisphere, the June full moon is sometimes called a Honey Moon, possibly because it never gets very high in the sky. When we gaze toward this full moon throughout the night tonight, we
are seeing it through more of Earth’s atmosphere than when the moon is overhead. The atmosphere reddens its color. Slooh will be broadcasting online coverage of the full Honey Moon.


So this full moon rides especially low for us in this hemisphere, because it comes so near the solstice. Why? Simply because the full moon, by definition, is opposite the sun. Sun rides high in
summer … full moon rides low. At every full moon, the moon stands more or less opposite the sun in our sky. That’s why the moon looks full. Around the world tonight, the moon will rise around
sunset, climb to its highest point around midnight and set around sunrise.


As seen from both the Northern and Southern hemispheres, the moon – like the December solstice sun – will rise far south of due east and set far south of due west. North of the Arctic Circle,
tonight’s moon – like the winter sun – will be too far south to climb above the horizon.


Meanwhile, in the Southern Hemisphere – where it’s winter now – tonight’s moon will mimic the summer sun, arcing high in the heavens. South of the Antarctic Circle, the moon will simulate the
midnight sun – up all hours around the clock.


When does Friday the 13th have a full moon?


Help support EarthSky! Check out the EarthSky store for fun astronomy gifts
and tools for all ages!




Day and night sides of Earth at the instant of the June 2014 full moon (2014 June 13 at 4:11 Universal Time)



The moon turns astronomically full – resides most directly opposite the sun for the month – on June 13, at 4:11 Universal Time. At U.S. time zones, that means the moon will turn full on Friday, June 13 at 12:11 a.m. EDT, but on Thursday, June 12 at 11:11 p.m. CDT, 10:11 p.m.
MDT or 9:11 p.m. PDT.


This year’s June solstice falls on June 21, at 10:51 Universal Time. It’s the summer solstice for the Northern Hemisphere and winter solstice in the Southern Hemisphere. This solstice is also
called the northern solstice, because the sun reaches its northernmost point for the year for all of us on this special day.


Bottom line: In 2014, the moon is full on June 13 at 4:11 UTC. That is the evening of June 12 for North
American time zones. This is the closest full moon to the N. Hemisphere’s summer solstice, and thus, for us in this hemisphere, the full moon takes a low path across the sky. Meanwhile, in the
S. Hemisphere, notice the high path of the full moon of June.


A planisphere is virtually indispensable for
beginning stargazers. Order your EarthSky planisphere today.



Bruce McClure




MORE FROM EARTH SKY



Earth usually has more than one moon  




Waning crescent moon and Venus before sunrise June 23
 




Can you tell me the full moon names?  




June 2014 guide to the five visible planets
 




Look for daytime moon each morning this upcoming week  





FROM AROUND THE WEB





















neo 11/06/2014 20:02


http://www.space.com/26206-sun-erupts-3rd-huge-solar-flare.html?cmpid=557672


http://www.space.com/26207-double-trouble-sunspot-flares-again-multiple-wavelengths-video.html


 




Sun Erupts with 3rd Huge Solar Flare in 2 Days (Video)



By Miriam Kramer, Staff Writer   |   June 11, 2014 09:54am ET







261

 




18

 




2

Submit




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Reddit










The sun is hitting its stride. Earth's closest star shot off yet another powerful solar flare today (June 11) after producing a pair of major solar storms Tuesday.







An X1 solar flare bursts off the left limb of the sun in this image
captured by NASA's Solar Dynamics Observatory on June 11, 2014, at 9:05 a.m. EDT.
Credit: NASA/SDO/Goddard

View full size image





The X1-class flare reached its peak at 5:06 a.m. EDT (0906 GMT) and came from Region 2087 near the southeastern limb of the sun's disk, the same region of the star that produced the two
powerful solar flares yesterday. NASA captured an amazing video of the X1 solar
flare using its space-based Solar Dynamics Observatory.


Today's solar tempest did cause a brief radio blackout on Earth, but officials with the U.S. Space Weather Prediction Center based in Boulder, Colorado, don't think that the flare has an
associated coronal mass ejection — a burst of hot plasma sent out from the sun during some solar flares. [See photos of the biggest solar flares in 2014]


 







Three X-class flares erupted from the left side of the sun June 10-11,
2014. These images are from NASA's Solar Dynamics Observatory and show light in a blend of two ultraviolet wavelengths: 171 and 131 angstroms.
Credit: NASA/SDO

View full size image





While officials with the SWPC didn't initially think that Tuesday's flares produced a coronal mass ejection — a burst of plasma associated with some solar
flares — later analysis shows that the flares did produced two CMEs. The first solar flare produced a relatively small CME, with the second merging with it shortly after, according to
astronomer Tony Phillips at spaceweather.com.


The CME is expected to give Earth a glancing blow, when it reaches our part of the solar system Friday (June 13). It's possible that the incoming CME could create polar geomagnetic storms,
according to Phillips.


The sun is in the active phase of its 11-year solar cycle, called Solar Cycle 24. NASA officials now think the sun is in its maximum, which they have dubbed the "mini max." Although the sun's activity is on the upswing, this solar max is still quite weak by comparison
to other solar maximums on record, NASA officials have said. Scientists expected that the solar maximum (the peak in the sun's activity for the cycle) would occur in 2013.


"It's back," Dean Pesnell, of NASA's Goddard Space Flight Center, said in a NASA statement Tuesday (June 10) on the sun's weather cycle. "Solar max has arrived."


 



Solar Quiz: How Well Do You Know Our Sun?




Many of us take the sun for granted, giving it little thought until it scorches our skin or gets in our eyes. But our star is a fascinating and complex object, a gigantic fusion
reactor that gives us life. How much do you know about the sun?


Start the Quiz





 








neo 10/06/2014 19:33


ça se confirme:


DOUBLE X-FLARE:  Breaking a weeks-long spell of quiet, the sun erupted on June 10th, producing not one but two X-class solar flares. The source is a new sunspot just emerging over the sun's
southeastern limb. This active region is not squarely facing our planet.  However, it will become increasingly geoeffective as it turns toward Earth in the days ahead. Check http://spaceweather.com for details and updates.

neo 10/06/2014 19:19


http://youtu.be/ElfR4B01cU0

neo 10/06/2014 19:07


http://youtu.be/jXhRNzxoMRA

neo 10/06/2014 17:49


https://www.youtube.com/watch?v=8Ha7X6dWVQE&feature=em-uploademail

neo 23/05/2014 22:20


http://lunarmeteoritehunters.blogspot.fr/2014/05/the-latest-worldwide-meteormeteorite_2http://lunarmeteoritehunters.blogspot.fr/2014/05/the-latest-worldwide-meteormeteorite_23.html?utm_source=feedburner&utm_medium=email&utm_campaign=Feed:+LatestWorldwideMeteor/meteoriteNews+%28Latest+Worldwide+Meteor/Meteorite+News%293.html?utm_source=feedburner&utm_medium=email&utm_campaign=Feed:+LatestWorldwideMeteor/meteoriteNews+%28Latest+Worldwide+Meteor/Meteorite+News%29


 


 


 

neo 23/05/2014 19:52


HELLO ,


encore difficile de poster ce soir


même si celà va un peu mieux ...


 


Space Weather News for May 23, 2014
http://spaceweather.com

METEOR ALERT:  This weekend, Earth will pass through a stream of debris from Comet 209P/LINEAR. If forecasters are correct, the encounter could produce an outburst of bright meteors
numbering more than 200 per hour.  Most models agree that peak rates should occur between the hours of 0600 UT and 0800 UT (2 a.m. and 4 a.m. EDT) on Saturday morning, May 24th, a time frame
that favors observers in North America.  It is worth noting, however, that Earth has never encountered this stream of debris before, so forecasters cannot be certain of their predictions.
 The display could be a complete dud, a fantastic "meteor storm," or anything in between.  Visit http://spaceweather.com for full coverage.

SOLAR FLARE ALERTS:  Solar Max has arrived.  Would you like a call when the sun erupts?  Solar flare alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).

Ferlinpimpim 24/05/2014 02:09



Oui, il parait que c'est dur d'accéder au blog.... ça doit être fait exprès pour passer sous la nouvelle version.


 


Bien à toi.



neo 06/03/2014 16:49


ceci expliquant sans doute le très beau temps du moment:


lire l'article sur le trou coronal et la nouvelle durée de vie


de la tâche présentée ensuite sur le site dans l'article


"old sunspot " ...


 


ANOTHER ASTEROID FLYBY: For the second time in as many days, an asteroid is flying through the Earth-Moon system. Yesterday, March 5th,
30-meter asteroid 2014 DX110 passed just inside the orbit of the Moon--about 0.9 lunar distances away. Today, March 6th,
10-meter asteroid 2014 EC is coming even closer--only 0.2 lunar distances. Neither space rock poses an immediate threat to
Earth. According to NASA, asteroids thread the Earth-Moon system more than 20 times a year.


CORONAL HOLE: In the sun's northern hemisphere, magnetic fields have opened up, allowing a stream of solar wind to escape into space. Such
openings are called "coronal holes". NASA's Solar Dynamics Observatory took this picture of the structure during the early hours of March 6th:





A stream of solar wind flowing from this coronal hole should reach Earth on or about March 9th. Because the "spigot" is located in the sun's northern hemisphere, the stream will sail mostly north
of our planet. Nevertheless, a glancing blow might be enough to spark polar auroras. NOAA forecasters estimate a 35% chance of high-latitude geomagnetic storms when the solar wind arrives.
Aurora alerts: text, voice


Realtime Space Weather Photo Gallery


OLD SUNSPOT: The lifespan of a typical sunspot is two to three weeks. This one is about to turn three months:





Carried around by the sun's 27-day rotation, AR1990 is making its third transit of the visible solar disk. In previous apparitions it was known as AR1944 and AR1967. Each time it has appeared,
the sunspot has unleashed at least one strong flare, the most recent being the X4.9-class
blockbuster of Feb. 25th. Since then, AR1990 has quieted and started showing signs of decay. Is this sunspot finally succumbing to time? Stay tuned.


Karzaman Ahmad of the Langkawi National Observatory in Malaysia took the above picture on March 3rd. He used an 11-inch telescope. The dimensions of the sunspot make it an easy target for such
relatively small optics. Its dark core is about the size of Earth, and it is surrounded by boiling granules as large as the state of Texas. If you have a
solar telescope, take a look. Solar flare alerts: text, voice


Realtime Space Weather Photo Gallery


HELIOPHYSICS SUMMER SCHOOL: Are you an undergraduate physics or astronomy instructor? There might be a seat waiting for you at the 2014
Heliophysics Summer School. The program's sponsor, UCAR, is looking for a number of qualified instructors to attend with
most expenses paid. Apply here. The deadline has been extended to March 22nd.



Realtime Aurora Photo Gallery



Realtime Comet Photo Gallery
















 


All Sky Fireball Network














Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by
NASA's Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth's atmosphere and many other characteristics. Daily results are presented here on
Spaceweather.com.


On Mar. 5, 2014, the network reported 5 fireballs.
(5 sporadics)





In this diagram of the inner solar system, all of the fireball orbits intersect at a single point--Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]














 


Near Earth Asteroids














Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the
known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.











On March 6, 2014 there were 1458 potentially hazardous asteroids.









neo 25/01/2014 18:44


A dwarf planet positioned right next to us in the asteroid belt may contain more freshwater than earth and even some life


By Shepard Ambellas


(INTELLIHUB) — Touted as the only dwarf planet in the
solar system, Ceres, which is made up of about one-third the mass of the asteroid belt itself, has been shown by a European Space Agency research team to harbor vast supplies of freshwater.


While it it is currently not yet known how the water is distributed onto or inside the planet, some speculate ice volcanoes could be a source.


The NASA spacecraft “Dawn” is expected to arrive at Ceres in Feb. 2015 to gather more information pertaining to the water and life on the tiny planets surface.


The Raw Story reported:


“We’ve got a spacecraft on the way to Ceres, so we don’t have to wait long before getting more context on this intriguing result, right from the source itself,” said Carol Raymond, deputy
principal investigator for Dawn at NASA’s Jet Propulsion Laboratory. “Dawn will map the geology and chemistry of the surface in high resolution, revealing the processes that drive the outgassing
activity.”


Dawn, which launched in 2007, had previously orbited the protoplanet Vesta, the second-largest object in the asteroid belt between Mars and Jupiter that’s littered with rock left over from
the formation of the solar system some 4.6 billion years ago.


The discovery puts Ceres in a special class of solar system objects with active water plumes, a key ingredient for life, and includes Jupiter’s moon Europa – which may have an ocean beneath
thick surface ice – and Saturn’s moon Enceladus, where water jets have been spotted on the surface.


So why would NASA spend so much money, time and effort to visit such a world? Did they already suspect the possibility that Ceres houses water and possibly life?

Continue Reading


Copyright © 2014 Unbound Media Group LLC, All rights reserved.

neo 25/01/2014 18:43


http://www.lecosmographe.com/blog/supernova-dans-la-galaxie-m82/


 

neo 25/01/2014 18:38


http://www.dlr.de/dlr/en/desktopdefault.aspx/tabid-10081/151_read-9342/year-all/#gallery/13502


 


Glaciers and mountains in 3D – DLR special camera flies over Himalayas for first time


24 January 2014












On Annapurna: First test flight with camera










































Information


3.65
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1/6










Time and again, Himalayan landslides and flash floods cost the lives of dozens of people in Nepal, sweeping away entire villages and infrastructure like bridges and roads. Until now, the images
of this remote region have been acquired by satellites. But now, as part of a measurement campaign by the Mountain Wave Project (MWP) set to last several weeks, scientists from the German
Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR), with a special focus on security research, will test an innovative camera system that takes detailed aerial images from a
motorised glider. The flights at high altitude are used for validation of the developed optical sensor system. The researchers intend to use these pictures to create precise 3D models of
various Nepalese regions, among other things to improve forecasts of hazards to the population. This involves close cooperation with the Nepalese authorities and an international team
comprising scientists from the states bordering on the Himalayas (ICIMOD). There are flights scheduled for the Annapurna and the southern Everest region. The scientists are maintaining a blog
to provide continuous reports on the events of their audacious research travels.


"We completed the first Himalaya flight with our camera on 23 January 2014," says project leader Jörg Brauchle from the DLR Institute of Optical Sensor Systems in Berlin. He is in Nepal to lead the DLR contribution to the expedition. "We shot first-class, multi-spectral images with a resolution of
20 centimetres at an altitude of 6400 metres above Khali Gandhaki Valley. The optical data provided by the camera could not be better for 3D modelling of mountainous regions." This is the first
time that an airborne camera system has been used in flights over this challenging region. The expedition has moved into its basecamp in Pokhara on the outer reaches of the Annapurna region.
The team has two motorised gliders of the type Stemme S10, which over the previous two weeks had flown across Europe, Egypt, the Arabian Peninsula, Pakistan and India, before touching down in
Nepal. By taking part in the Nepal expedition and contributing to its results, DLR demonstrates further applications in the filed of civil protection.


A Himalayan camera that withstands extreme conditions


The Modular Aerial Camera System (MACS), a specialised apparatus developed and built by
DLR, is fitted in an unpressurised instrument container mounted beneath the wing of a Stemme S10VTX motorised glider owned by the Aachen University of Applied Sciences. The camera was already
put to the test in a flight over the Stubai glacier in the Austrian Alps during August 2013. But even before this, the innovative system had to endure a very severe set of tests in a vacuum
chamber and under extraordinary lighting conditions. After all, the camera is needed in particular to photograph Himalayan glaciers and rock faces from heights above 8000 metres and
temperatures below minus 40 degrees Celsius. "To do this, we drew on the expertise the Institute has in building space cameras," says Brauchle. "The conditions in outer space are even more
extreme." The imaging technology in the camera system is tailored to the specific aspects of high mountainous regions. Three camera heads, arranged facing toward each other at a lateral slant,
provide a vision field of 120 degrees and permit acquisition of high-resolution images of precipitous cliff faces.


Identifying the weak points on a slope


The pictures are used to create detailed computer images of the mountains regions the glider passes over in 3D and colour. DLR has its own software to do this, which it also uses to evaluate
data acquired with Earth observation satellites. It is crucial that the steep sections of the slopes are rendered with particular precision. After all, the researchers around departmental head
Frank Lehmann are seeking to identify where precipitous mountainsides are at their most fragile: "Imminent landslides and rock avalanches are barely visible to the naked eye," explains Lehmann.
"The 3D model allows us to integrate the images within a Geographic Information System (GIS), which permits analyses and assessments relating to possible hazards based on geological,
hydrological and meteorological data."


The scientists also have their eyes on the glaciers and glacial lakes sparkling further down the valley. They are often key to making better predictions of floods occurring in lower reaches of
the sweeping landscape. Seti Valley, a recent flight destination, is of particular interest to geologists and glaciologists in this respect. The river Seti is a repeat offender in bursting its
banks without warning, causing flash floods. This is due to a natural dam blocking a glacial lake.


Partners in the Mountain Wave Project


"The basic idea behind the project is to exploit atmospheric mountain waves or lee waves as updrafts in a variety of mountainous regions around the world. They can lift the gliders to huge
altitudes and carry them long distances," says René Heise, passionate glider pilot, meteorologist and founder of the Mountain
Wave Project. On 23 November 2003, MWP set a highly publicised long-distance world record with a 'wave flight' of this kind, travelling 2138 kilometres across the Andes in a straight line.
And in 2006, scientists successfully embarked on the first turbulence measurement flights over the Andes, reaching the lower stratosphere at an altitude of 12,500 metres. The insight gained
during this campaign i

neo 25/01/2014 18:10


pour info:


 


http://www.levif.be/info/actualite/sante/la-grippe-h1n1-attaque-de-nouveau/article-4000507937748.htm?nb-handled=true&utm_source=Newsletter-24/01/2014&utm_medium=Email&utm_campaign=Newsletter-RNBAVULV


 



La grippe H1N1 attaque de nouveau




Thierry Denoel


vendredi 24 janvier 2014 à 16h24



Une épidémie de grippe H1N1 sévit aux Etats-Unis depuis novembre. Désormais, plusieurs dizaines de morts sont à déplorer, suite à des complications respiratoires. Le virus pourrait
s’attaquer à l’Europe, y compris la Belgique, surtout si les températures diminuent. Faut-il s’inquiéter ?






© Thinkstock




 


Vingt morts au Texas, treize en Caroline du Nord, douze en Floride, trois dans le Michigan, deux en Oregon… Après le Canada, la grippe H1N1, variante du fameux virus apparu en 2009, commence à
faire des ravages aux Etats-Unis, où le seuil de l’épidémie a été clairement franchi. Jean-Louis Vincent, chef du service des soins intensifs à l’hôpital universitaire Erasme (Bruxelles), revient
tout juste d’un congrès de soins intensifs à San Francisco. « Mes collègues américains sont fort préoccupés, témoigne-t-il. Le problème de la grippe est qu’elle peut entraîner des complications
respiratoires sévères qui nécessitent l’utilisation de machines ’’cœur-poumon’’. Ces machines sont vite en nombre insuffisant en cas de forte épidémie. »


Avec les moyens de transport actuels, on sait que les virus voyagent facilement. L’Europe peut être touchée à son tour, et donc la Belgique aussi. C’est déjà le cas dans le Nord de l’Espagne, qui
a connu de fortes vagues de froid cet hiver : la grippe H1N1 y a tué deux personnes depuis début janvier. « Jusqu’ici, les températures douces que nous connaissons en Belgique nous ont préservés,
explique le Pr Vincent. Le virus de la grippe préfère le froid. Mais, si le thermomètre commence à descendre en-dessous du zéro degré, comme c’était le cas cette nuit et ce matin, le risque
augmentera. »


Au Conseil supérieur de la santé (CSS), l’organe d’avis scientifique du SPF de la Santé publique, on se montre serein. « Cela ne nous inquiète pas pour l’instant, commente Vinciane Charlier,
porte-parole du CSS. La grippe H1N1 sévit durement aux Etats-Unis à cause des conditions hivernales extrêmes que ce pays a connues. Ici, au CSS, cette grippe est néanmoins considérée comme une
grippe saisonnière. La souche se trouve dans le vaccin antigrippe distribué depuis mi-octobre. Les personnes vaccinées sont donc protégées. »


Les autres, elles, ne le sont pas… Le Pr Jean-Louis Vincent se montre plus inquiet. « Nous savons que nous allons être confrontés à une épidémie de grippes qui nécessitera des besoins lourds en
soins intensifs. » Ce qu’on ne sait pas, c’est quand la grippe arrivera.

neo 25/01/2014 18:04


http://www.lecosmographe.com/blog/troisieme-volet-de-gigagalaxy-zoom-la-nebuleuse-de-la-lagune/

neo 25/01/2014 18:02


http://earthsky.org/tonight/legend-of-the-celestial-hunter-and-scorpion?utm_source=EarthSky+News&utm_campaign=775391515a-EarthSky_News&utm_medium=email&utm_term=0_c643945d79-775391515a-393511181


 



Celestial Hunter and Scorpion, plus see moon near Antares













Tonight for January 25, 2014


Courtesy U.S. Naval Observatory







View larger. | Our friend Tom Wildoner wrote: “How to feel
warm on a cold morning? Check out those summer stars coming back into the morning skies in the Northern Hemisphere! Scorpius and the bright star Antares in the lower left corner are now
entering the morning skies in the North. Three photostiched 30-second exposures show the last quarter moon, Scorpius and what may be a shooting star (meteor) in the upper right corner.” Photo
from January 24, 2014. Thanks, Tom!





Orion the Hunter fending off Taurus the Bull. Image via HubbleSOURCE









Top image of constellation Orion via jerm1386 on Flickr


At this time of year, the constellation Orion the Hunter dominates the southeastern sky in early evening, as seen from latitudes in the Northern Hemisphere. The featured photo at top shows how
Orion appears at early evening at mid-northern latitudes. Notice its short, straight row of three medium-bright stars. These stars represent Orion’s Belt.


On old sky maps, Orion is holding up a shield, fending off the constellation Taurus the Bull, which rose earlier.


In the lore of the sky, Orion is also connected to the constellation Scorpius the Scorpion,
which – at this time of year – can be found rising in the southeast shortly before dawn. Tomorrow morning, on Sunday, January 26, the waning crescent moon will be close to Antares, the Scorpion’s brightest star.


And as darkness ebbs into dawn, you might even catch the two stars marking the Scorpion’s stinger looming over the southwest horizon. These stars – Shaula and Lesath – rise about four minutes
earlier each day, so even if you miss them tomorrow, you should be able to view the entire Scorpion sometime soon.


So Orion is up in the evening now, and Scorpius is up before dawn. Next summer, when Orion is up before dawn, Scorpius will be out in the evening. Orion and Scorpius never appear in the sky at
the same time.


Legend has it that Orion the Hunter was very vain. He boasted that no animal on Earth could kill him. But the Scorpion did sting Orion, and the Hunter died of its poison. Now, according to this
ancient myth, the bitter hatred between these two constellations is so great that they can never been seen in the sky simultaneously.


We today have a different interpretation of the fact that Orion and Scorpion are never in the sky together. Scorpius is located in the direction toward the center of our Milky Way galaxy. Orion
is located in the opposite direction. They’re never in the sky at once simply because they’re located in opposite directions in space, as seen from Earth.


Not too late. Order your 2014 EarthSky Lunar Calendar today!


A planisphere is virtually indispensable for beginning stargazers. Order your EarthSky Planisphere today!



EarthSky




MORE FROM EARTH SKY



January 2014 guide to the five visible planets  




Moon and Saturn before dawn on January 25  




Looking for a sky almanac? EarthSky recommends …  




Big and Little Dippers: Everything you need to know




EarthSky’s meteor shower guide for 2014








Al198 25/01/2014 00:28


Ouais Ouais,


Qui aura les cojones d'aller SUR le Soleil hein ?! Par contre faudra y aller de nuit c'est plus prudent !

Ferlinpimpim 26/01/2014 05:08



Faudra un artiste qui ose brûler les planches....



Wil 24/01/2014 22:58


Hello Ferlin au moins tu as un indice tu sais d'où viennent les Walkiries;)


Ils ont les principes, ils peuvent aller là où toi tu ne peux pas:) enfin si tu peux à condition d'oublier bien des choses et je pense que pour leur peuple ils sont en train de le réaliser.
N''oublie pas que mon patron est indien;)


A+


Wil


 

Ferlinpimpim 26/01/2014 05:08



N'oublie pas, Wil, que je travaille pour le Seigneur....


 


Bon, c'est à temps partiel, pour l'instant, mais je négocie un CDI.