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Raman Tyagi

Cosmology  - 
 
Photo from international space station
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The Milky Way over Sarah Sue Run at Coronet Peak
Coronet Peak is a commercial skifield in Queenstown, New Zealand located seven kilometers west of Arrowtown, on the southern slopes of the 1,649 meter peak which shares its name. (Source: WIkipedia)

Credit: Paul Jones
Image Date: June 13, 2016
Location: Coronet Peak, Queenstown, New Zealand

#Astronomy #Space #Science #Stars #Meteors #Astrophotography #Art #Earth #Queenstown #NewZealand #STEM #Education 
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Claudia Cruz Perez's profile photo
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First water, now oxygen.

Chemicals found in Martian rocks by NASA's Curiosity Mars rover suggest the Red Planet once had more oxygen in its atmosphere than it does now.
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Because..it's fake 
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Move across Helix Nebula

A counterclockwise zoom and rotation sequence of the Helix Nebula. The Hubble’s Advanced Camera for Surveys image of the Helix Nebula reveals thousands of comet-like filaments embedded along the inner rim of the nebula that point back towards the central star.

Credit: NASA, The Hubble Helix Team and G. Bacon (STScI)

► The animation below comes from a NASA video "Move across Helix Nebula", that you can watch here>>
http://hubblesite.org/newscenter/archive/releases/2003/11/video/c/

Helix Nebula, also known as NGC 7293, located at a distance of about 700 light-years in the constellation Aquarius, is one of the nearest planetary nebulae to Earth.
This bright and large planetary nebula was discovered by Karl Ludwig Harding, probably before 1824.

It is similar in appearance to the Cat's Eye Nebula and the Ring Nebula, whose size, age, and physical characteristics are similar to the Dumbbell Nebula, varying only in its relative proximity and the appearance from the equatorial viewing angle.
The Helix Nebula has sometimes been referred to as the "Eye of God" in pop culture, as well as the "Eye of Sauron".

The Helix Nebula is an example of a planetary nebula, or 'nebula' formed at the end of a star's evolution. Gases from the star in the surrounding space appear, from our vantage point, as if we are looking down a helix structure. The remnant central stellar core, known as a planetary nebula nucleus or PNN, is destined to become a white dwarf star. The observed glow of the central star is so energetic that it causes the previously expelled gases to brightly fluoresce.

The Helix Nebula was also the first planetary nebula discovered to contain cometary knots. More than 20,000 of them are estimated to be in this interesting nebula. Their origins are still not well understood.

Further reading and references

https://en.wikipedia.org/wiki/Helix_Nebula

http://apod.nasa.gov/apod/ap080413.html

http://www.noao.edu/jacoby/pn_gallery.html

http://hubblesite.org/newscenter/archive/releases/1996/13/image/a/

#Universe, #HelixNebula, #NGC7293, #constellationAquarius, #planetarynebula, #cometaryknots, #astronomy, #space
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First WORD. fail
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This image reveals the interior of one of the most active galaxies in our local neighbourhood — NGC 1569. It is a starburst galaxy, meaning it is bursting at the seams with stars and is currently producing them at a rate far higher than that observed in most other galaxies.
For almost 100 million years, NGC 1569 has pumped out stars over 100 times faster than the MilkyWay!
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Russell Bateman

Discussion  - 
 
 
Celebrating our Sun and maybe some of that night stuff too.
Live views of objects in space, from planets to nebulae! With astro images, Q&A and lively debate, come join us for our weekly hangout!

Previous Episodes: http://www.youtube.com/GlobalStarPartyLive

Places to find us:
Twitter: https://twitter.com/globalstarparty
Google+: https://plus.google.com/+GlobalStarPartyLive
YouTube: http://www.youtube.com/globalstarpartylive
Flickr: https://www.flickr.com/groups/globalstarparty

Submit Images for the show on either the event page or our flickr group
This Hangout On Air is hosted by Russell Bateman. The live video broadcast will begin soon.
Q&A
Preview
Live
Global Star Party - International SUNday
Sat, June 25, 10:00 PM
Hangouts On Air - Broadcast for free

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akshay venu

Cosmology  - 
 
Earth's ancient magnetic field had more than two poles! http://spacechecker.blogspot.com/2016/06/earth-ancient-magnetic-field-had-more.html
We all know that our Earth has two magnetic poles- North and South, and the magnetic field between these two poles protects us from harmful cosmic rays and high speed solar winds. new meteorite 65 to reveal origin of life on earth. But a recent study reveals that this arrangement of magnetic ...
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The Veil Nebula Up-close
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus. It constitutes the visible portions of the Cygnus Loop (radio source W78, or Sharpless 103), a large but relatively faint supernova remnant. The source supernova exploded some 5,000 to 8,000 years ago, and the remnants have since expanded to cover an area roughly 3 degrees in diameter (about 6 times the diameter, or 36 times the area, of the full moon). The distance to the nebula is not precisely known, but Far Ultraviolet Spectroscopic Explorer (FUSE) data supports a distance of about 1,470 light-years.

Credit: Alessandro Falesiedi
Alessandro's website: www.alessandrofalesiedi.it
Capture Location: Viterbo, Lazio, Italy
Image Date: June 15, 2016

Technical details:
Optics: Celestron C11 @ f6.3
Mount: Avalon M3 Fast Reverse
Camera: SX H694 unbinning
Dates/Times: 2016
Location: Viterbo, W. Herschel obs.
Exposure:
Lum Hydrogen: 12,0 hours + Oxigen 8,2 hours ; Red : 30 min; Blue: 4.9 hours; G: R/B .
Cooling: avg – 5°
Acquisition: Astroart, Sequence Generator Pro, PHD2, Avalon Star Go
Processing: Iris, PS 3, Pix Insight, CCD sharp,
SQM-L: 19.0
Note um: 78%

#Astronomy #Space #Science #Nebula #Veil #Cygnus #Supernova #Remnant #Astrophotography #Art #Cosmos #Universe
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CrISS-crossing The Sun | International Space Station
Note: This is not a Star Wars TIE fighter battle despite appearances. ;)
Morning transit: 09h45m55s UT, diameter ISS 53,24”, duration 0,69s, distance 518,8 km. Moderate seeing
Afternoon transit: 16h12m20s UT, diameter ISS 46,92”, duration 0,85s, distance 589,2 km. Bad seeing

Credit: Fins Eirexas
Capture Location: Spain
Release Date: June 26, 2016

+NASA Johnson Space Center 
+Star Wars 

Technical details: Nikon D600 Nikkor AIS 300mm IF ED @f/8(2x teleconverter, equiv. 600mm), Baader solar filter

#Space #ISS #Science #Sun #Solar #Transits #Earth #Spain #España #Astrophotography #Art #STEM #Education
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+Yvonne Thompson I totally agree with u on that..they sure as heck did..lol
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About this community

Welcome to the Google+ Deep Astronomy Community - a home for those who would like to discuss and explore questions about cosmology, the nature of the universe, the Big Bang, life in the universe and much more. Please post on-topic, no hidden links or SPAM, give credit to image sources, while following the primary rule: be courteous and respect others!
 
 
Another AI warning from Stephen Hawking, plus a list of his biggest mysteries:
British physicist Stephen Hawking sees signs that the applications for artificial intelligence are already going down the wrong track.
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M1: The Crab Nebula from NOT

This is the mess that is left when a star explodes. The Crab Nebula, the result of a supernova seen in 1054 AD, is filled with mysterious filaments. Thefilaments are not only tremendously complex, but appear to have less mass than expelled in the original supernova and ahigher speed than expected from a free explosion. The above image, taken by theNordic Optical Telescope (NOT), is in three colors chosen for scientific interest. TheCrab Nebula spans about 10 light-years. In the nebula's very center lies a pulsar: aneutron star as massive as the Sun but with only the size of a small town. The Crab Pulsar rotates about 30 times each second.


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Queenstown Shooting Stars!

Credit: Paul Jones
Image Date: December 13, 2014
Location: New Zealand

#Astronomy #Space #Science #Stars #Meteors #Astrophotography #Art #Earth #Queenstown #NewZealand #STEM #Education
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The Red Square Nebula: One of the Most Beautiful Objects in the Universe

The Red Square Nebula is a celestial object located in the area of the sky occupied by star MWC 922 in the constellation Serpens.
The first images of this bipolar nebula, taken using the Mt. Palomar Hale telescope in California, were released in April 2007. It is notable for its square shape, which according to Sydney University astrophysicist Peter Tuthill, makes it one of the most symmetrical celestial objects ever discovered. So, if symmetry is a sign of splendor, then the Red Square nebula is one of the most beautiful objects in the universe.

In effect, the startling degree of symmetry and level of intricate linear form make the Red Square nebula around MWC 922 the most symmetrical object of comparable complexity ever imaged. The overall architecture displays a twin opposed conical cavities (known as a bipolar nebula), along the axis of which can be seen a remarkable sequence of sharply defined linear rungs or bars. This series of rungs and conical surfaces lie nested, one within the next, down to the heart of the system, where the hyperbolic bicone surfaces are crossed by a dark lane running across the principle axis.

What could cause a nebula to appear square? No one is quite sure.

The below image combines infrared exposures from the Hale Telescope on Mt. Palomar in California, and the Keck-2 Telescope on Mauna Kea in Hawaii. A leading progenitor hypothesis for the square nebula is that the central star or stars somehow expelled cones of gas during a late developmental stage. For MWC 922, these cones happen to incorporate nearly right angles and be visible from the sides.
Supporting evidence for the cone hypothesis includes radial spokes in the image that might run along the cone walls.
Researchers speculate that the cones viewed from another angle would appear similar to the gigantic rings of supernova 1987A, possibly indicating that a star in MWC 922 might one day itself explode in a similar supernova.

After MWC 922 ejects most of its material into space, it will contract into a dense stellar corpse known as a white dwarf, shrouded by clouds of its own remains.

The Red Square nebula discovery is detailed in the April 13 issue of the journal Science.

Image credit: Peter Tuthill (Sydney U.) & James Lloyd (Cornell)

You can see an image of Red Square Nebula, reworked by me thanks to GeoGebra software and so... made sparkling.>>
http://www.tutto-scienze.org/2012/12/felice-2013-dal-quadrato-rosso-dello.html

Further reading and references

http://science.sciencemag.org/content/316/5822/247

http://www.space.com/3681-perfect-symmetry-revealed-red-cosmic-square.html

http://www.physics.usyd.edu.au/~gekko/redsquare.html

https://en.wikipedia.org/wiki/Red_Square_Nebula

#universe, #ReadSquareNebula, #bipolarnebula, #constellationSerpens, #starMWC922, #research, #space, #astronomy
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Four Different Planetary Nebulae

These four planetary nebulas come from the first systematic survey of such objects in the solar neighborhood made with NASA's Chandra X-ray Observatory.
The planetary nebulas shown here are, clockwise starting from the top left: NGC 6543 (also known as Cat's Eye), NGC 7662, NGC 6826, and NGC 7009.

The image below shows optical Hubble Space Telescope data in red, green and blue.

X-ray emission from Chandra is colored purple and you can see it too, here>> http://chandra.harvard.edu/photo/2012/pne/

The diffuse X-ray emission seen with Chandra is caused by shock waves as a wind from the hot remnant of the star collides with the ejected atmosphere.

The four planetary nebulas are all located less than 5000 light years from Earth.

Survey's results were published in the August 2012 issue of The Astronomical Journal. The first two authors are Joel Kastner and Rodolfo Montez Jr. of the Rochester Institute of Technology in New York, accompanied by 23 co-authors.

Read here for knowing the details >>
http://chandra.harvard.edu/photo/2012/pne/

Credit
X-ray: NASA/CXC/RIT/J.Kastner et al.; Optical: NASA/STScI

Further reading

► Planetary Nebula>> https://en.wikipedia.org/wiki/Planetary_nebula

► NGC 6543: The Cat's Eye Nebula Redux>>
http://chandra.harvard.edu/photo/2008/catseye/

#universe, #planetarynebulae, #HubbleSpaceTelescope, #firstChandrasurvey, #ChandraXrayObservatory, #research
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ART KOSEKOMA

Hubble Space Telescope  - 
 
Hubblecast 82: New view of the Eagle Nebula’s Pillars of Creation
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Scientists led by Durham University's Institute for Computational Cosmology ran the huge cosmological simulations that can be used to predict the rate at which gravitational waves caused by collisions between the monster black holes might be detected.
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The Lagoon Nebula
The Lagoon Nebula (catalogued as Messier 8 or M8, NGC 6523, Sharpless 25, RCW 146, and Gum 72) is a giant interstellar cloud in the constellation Sagittarius. It is classified as an emission nebula and as an H II region.

The Lagoon Nebula was discovered by Giovanni Hodierna before 1654 and is one of only two star-forming nebulae faintly visible to the naked eye from mid-northern latitudes. Seen with binoculars, it appears as a distinct oval cloudlike patch with a definite core. In the foreground is the open cluster NGC 6530.

Credit: Flickr user Manolis
Release Date: June 25, 2016

Technical details:
Lum 60x120sec.
RGB 120X120sec Each.
Data from deepskywest.com

#Astronomy #Space #Science #Nebula #Lagoon #M8 #NGC6523 #RCW146 #Gum72 #Sharpless25 #Star #Cluster #NGC6530 #Sagittarius #Astrophotography #Art #Cosmos #Universe
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The Veil Nebula Up-close
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus. It constitutes the visible portions of the Cygnus Loop (radio source W78, or Sharpless 103), a large but relatively faint supernova remnant. The source supernova exploded some 5,000 to 8,000 years ago, and the remnants have since expanded to cover an area roughly 3 degrees in diameter (about 6 times the diameter, or 36 times the area, of the full moon). The distance to the nebula is not precisely known, but Far Ultraviolet Spectroscopic Explorer (FUSE) data supports a distance of about 1,470 light-years.

Credit: Alessandro Falesiedi
Alessandro's website: www.alessandrofalesiedi.it
Capture Location: Viterbo, Lazio, Italy
Image Date: June 15, 2016

Technical details:
Optics: Celestron C11 @ f6.3
Mount: Avalon M3 Fast Reverse
Camera: SX H694 unbinning
Dates/Times: 2016
Location: Viterbo, W. Herschel obs.
Exposure:
Lum Hydrogen: 12,0 hours + Oxigen 8,2 hours ; Red : 30 min; Blue: 4.9 hours; G: R/B .
Cooling: avg – 5°
Acquisition: Astroart, Sequence Generator Pro, PHD2, Avalon Star Go
Processing: Iris, PS 3, Pix Insight, CCD sharp,
SQM-L: 19.0
Note um: 78%

#Astronomy #Space #Science #Nebula #Veil #Cygnus #Supernova #Remnant #Astrophotography #Art #Cosmos #Universe
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Frank Rance's profile photoMei Muumi's profile photo
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Chuck Boren III

Discussion  - 
 
8 more days till JUNO arrives at Jupiter. This will be interesting to watch.
NASA’s JUpiter Near-polar Orbit mission or JUNO, is a 6 year, 37 orbit mission, and will arrive at Jupiter on July 4th 2016. Juno was launched on top of… - Chuck Boren III - Google+
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