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Xavi Bros

@Xavi_Bros

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Amateur astronomer, Anysllum Observatory, AstroSabadell. Psychologist pursuing a PhD in psychiatry. Author of "En las playas de Sedna":

Sabadell, Barcelona
Joined June 2014
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@Xavi_Bros
Xavi Bros
2 years
How is an aurora seen in Norway? Extreme beauty of Northern Lights. Credit: Aurora Borealis Observatory
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3 years
Stephen Hawking: “We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special”
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3 years
Marie Curie: “Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.”
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4 years
Carl Sagan: “The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies was made in the interiors of collapsing stars. We are made of star stuff.”
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Albert Einstein: “Life is like riding a bicycle. To keep your balance you must keep moving.”
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4 years
Carl Sagan: "Our passion for learning ... is our tool for survival."
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5 years
A stunning video of #Pluto as seen by #NewHorizons probe in its last flyby: wonderful !!!
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3 years
Stephen Hawking: “Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious.”
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3 years
Carl Sagan: “Extinction is the rule. Survival is the exception.”
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2 years
The eruption in Merardalir in Icelad is a geat phenomena. See this video done by Martin Voigt, during the first 24 hours of this eruption. Incredible !
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4 years
You can see this video all the day, hundred of rotations... and will be amazing each one: Full rotation of the Moon as seen by NASA's Lunar Reconnaissance Orbiter. Wonderful !
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4 years
It is difficult to imagine what happen when neutron stars collide, but the “new astronomy” can give us some clues: gravitational waves emission and gamma rays bursts ! Image Credit: MIT & NASA Goddard Center
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3 years
Albert Einstein: “Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.”
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2 years
Let me introduce you the Dolphin nebula Sh2-308. It surrounds a pre-supernova Wolf–Rayet star. This image (by Aleix Roig @astrocatinfo @AstroSabadell ) is shortlisted to win the “Astronomy Photographer of the Year” award. We need your vote in this link:
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4 years
Extraordinary rotation of #Mars seen in 1999 by Hubble Space Telescope. You can see deserts, mountains, storms, craters, the polar cap and many wonderful details.
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1 year
Messier 74 (NGC 628 “Phantom Galaxy”) is a large spiral galaxy, with a diameter of 95000 lightyears situated 32 million light-years far. This image is a composite of HST (visual), Chandra (X-ray) and @NASAWebb (infrared):
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4 years
Albert Einstein: “The measure of intelligence is the ability to change”
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4 years
Some years after #Cassini finished its wordelful mission, just some images of #Saturn to remember the best #SolarSystem #space mission ever done!!
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3 years
To study better the interstellar object 1I/’Oumuamua: a proposed mission to be launch in 2028 with a 4 gravitational assistences and a Jupiter Oberth Manoeuvre (JOM) reaching the asteroid in 2054, with an arrival speed of 18 km s−1: Illustration: NASA
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2 years
It is difficult to imagine what happen when two neutron stars collide, but the “new astronomy” can give us some clues: gravitational waves emission and gamma rays bursts ! Image Credit: MIT & NASA Goddard Center.
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4 years
Remembering Carl Sagan: “ I don’t want to believe. I want to know “.
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3 years
Incredible images of NASA’s rover Perseverance on the surface of Mars, moving as a car in a desert. Wonderful !!!
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4 years
Carl Sagan: “Somewhere, something incredible is waiting to be known...”
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2 years
A black hole is a region of spacetime where gravity is so strong that nothing can escape from it. The boundary of no escape is called the event horizon. Illustration: ESO
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1 year
It is -may be- the most iconic image of a nebula: The Pillars of Creation's columns. This image is a composition of X-rays data by @chandraxray combined with JWST @NASAWebb 's infrared light. A wonderful nebula with stars just born:
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2 years
Jupiter “the king” of our Solar System has a big influence to all its members: planets, comets and the main belt asteroids. Many asteroids are resonant, as the troyans. See this wonderful animation via @Tom_Ruen and via @Alan_Taylor_314
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3 years
Titan has rivers, lakes, seas and deltas of ethane and methane, in a cycle similar to the water cycle on our planet, with rains of large drops that fall slowly due to the weak gravity of this moon of Saturn. An impressive world with temperatures of -180ºC. Image: Cassini NASA/JPL
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1 year
340 years ago was observed a “new” star in Cassiopeia… Today we know it was a supernova in our own galaxy, 11000 lightyears far. The James Webb Space Telescope obtained recently this detailed image of this supernova remnant. Wonderful!
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3 years
Carl Sagan: “The nature of life on Earth and the search for life elsewhere are two sides of the same question—the search for who we are.”
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5 years
Wonderful #Jupiter animation based on #NASA #Juno images, showing the quick movement of bands, ovals and other details, as the famous dophin...Via @MeteoBarrufet
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Saturn's strange moon Iapetus has two sides with completely different albedo and a strange mountain range that runs through the satellite. Images: Cassini
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1 year
NGC 1672: a spiral galaxy with a large bar of 20 kpc, with strong radio emissions & a Seyfert nucleus with a starburst region. It’s situated 50 million lightyears far! This image is a composite of HST (visual), Chandra (X-ray) and @NASAWebb (infrared):
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2 years
This video of the full rotation of the moon has a hypnotic power: you can stare at it for a long time motionless. Astronomy has great power in our minds and motivations. Video by NASA’s Lunar Reconnaissance Orbiter via Universal-Sci
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1 year
In our galaxy Milky Way there are, may be, 400000000000 stars, mainly weak “brown dwarfs” but -according a census- only 642 Hyperluminous uncommon Wolf Rayet stars! Image: Wolf Rayet binary star WR140 by James Webb Space Telescope
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4 years
This is a very speculative animation of a black hole consuming a star. Please dont think it is an accurate model: just it’s a nice animation for pedagogical purposes. Credit: NASA Goddard
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4 years
A stunning video of #Pluto as seen by #NewHorizons probe in its last flyby: wonderful !!!
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3 years
Albert Einstein: "The most beautiful thing we can experience is the mysterious. It is the source of all true art and all science."
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2 years
Near-infrared view of Uranus with rings and some of its moons, obtained with the the 8.2-m VLT telescope ESO Paranal. Seven of the moons of Uranus can be identified: Titania and Oberon are the brightest. The much smaller and fainter Puck and Portia are barely visible.
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2 years
Wonderful view from Artemis 1: Our moon and our planet just when the spaceship is situated about 430000 km distant. Amazing!
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1 year
NGC 346 is a stunning beautiful young open cluster with a nebula in the Small Magellanic Cloud, 210000 lightyears distant. This image combine data from NASA’s Chandra X-ray Observatory and James Webb Space Telescope:
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1 year
Detail of just a part of the ring of M57 “Ring Nebula” the archetypal of a planetary nebula. This amazing image has been done by the James Webb Space Telescope with its NIRCam Camera. See the intricate details in this image!
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6 years
You can see this video all the day, hundred of rotations... and will be amazing each one: Full rotation of the Moon as seen by NASA's Lunar Reconnaissance Orbiter.
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2 years
Incredible video of an annular solar eclipse by Phobos seen from the Mars surface by NASA’s Perseverance rover. Wonderful ! It’s clearly visible the shape of Phobos, one of the two moons of Mars.
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1 year
Carl Sagan: “The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies was made in the interiors of collapsing stars. We are made of star stuff.”
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3 years
A wonderful image of #Jupiter taken by #Juno spacecraft. Incredible the details we can see in its atmosphere ! Image credit: NASA / JPL-Caltech / SwRI / MSSS / David Marriott
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2 years
Nice #Galaxy group NGC 7331, in Pegasus, with a prominent spiral is situated 40 million lightyears from us. Image done by Lluis Romero, an expert in astrophotography, member of @astrosabadell . He has not a twitter account but you can see his works here:
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1 year
You can see this video all the day, hundred of rotations... and will be amazing each one: Full rotation of the Moon as seen by NASA's Lunar Reconnaissance Orbiter.
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8 months
Remembering this stunning video of Pluto as seen by #NewHorizons probe in its flyby: wonderful !!!
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2 years
Remembering the Pluto images taken by NASA’s New Horizons in 2015. Pluto, a wonderful object…
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3 years
A stunning video of #Pluto as seen by #NewHorizons probe in its last flyby: wonderful !!!
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5 years
You can see this video all the day, hundred of rotations... and will be amazing each one: Full rotation of the Moon as seen by NASA's Lunar Reconnaissance Orbiter.
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3 years
Carl Sagan: “We wish to pursue the truth no matter where it leads — but to find the truth, we need imagination and skepticism both. We will not be afraid to speculate, but we will be careful to distinguish speculation from fact”.
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3 years
Remembering wonderful #Saturn images by Cassini. Rings, moons, atmospheric features... amazing ! Credits: NASA/JPL-Caltech/Space Science Institute
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3 years
Intrincate structures in the atmosphere of #Jupiter as seen by the NASA’s #Juno spacecrat orbiting currently our “big brother” Image processed by Kevin M. Gill. Wonderful !
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4 years
NASA’s Curiosity rover gave us in 2016, the possibility to see this wonderful Mars landscape: mountains, deserts, some craters... extreme beauty, but not life at all... Enjoy it !! Via @HarryStoltz1
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2 years
Astronomers from University of Warsaw used 65,981 Mira variable stars to trace the shape of the Milky Way and found evidence for both the X-shaped bulge component and the flaring disk (being plausibly warped): Image: The Milky Way warping by Univ of Warsaw
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3 years
In the next 7000 million years the sun will expand to be a red giant. Our planet sure will be not habitable… In this scenario, Europa, Enceladus & Titan will be in the new habitable zone with temperate temp… will humans, if still exist, move to them? Image: Astronomy Roen Kelly
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3 years
The largest volcano and mountain in the entire solar system, Olympus Mons is located in Mars. It is 25 km (16 mi) high!! with a diameter which makes about the same size as France. Images:
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2 years
This is probably the best image I have ever seen of: -the solar corona -a total solar eclipse -the moon details seen in an eclipse image Incredible! Credit: @SeVoSpace Sebastian Voltmer
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Stephen Hawking: “We are each free to believe what we want and it is my view that the simplest explanation is there is no God. No one created the universe and no one directs our fate. This leads me to a profound realization.”
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This is a wonderful aurora view from Finland. Extreme beauty and color, but the video author is unknown for me. Video source: @SitiosVirales
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3 years
Enceladus is a 500km diameter satellite of Saturn -190 C temperature. In 2005 Cassini discovered in the S pole, water-rich geyser-like plumes, cryovolcanoes, venting water vapor, hydrogen, sodium chloride crystals and ice particles, totaling about 200 kg/sec. Image: Cassini
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3 years
Remembering extraordinary images of #Saturn taken by #Cassini spacecraft. Wonderful !
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2 years
Albert Einstein “If relativity is proved right the Germans will call me a German, the Swiss will call me a Swiss and the French, a great scientist. If it’s proved wrong the French will call me a Swiss, the Swiss will call me a German and the Germans will call me a Jew.”
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1 year
Carl Sagan: “In our obscurity - in all this vastness - there is no hint that help will come from elsewhere to save us from ourselves. It is up to us.”
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3 years
Marie Curie: “First principle: never to let one's self be beaten down by persons or by events.”
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3 years
Next Monday, January 24th, the James Webb Space Telescope will start orbiting around Lagrange L2, 1,5million Km away. There, the gravity of the sun and Earth form an stability area where #JWST will work from a very stable position. Credit: NASA
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2 years
WHAT IS OUR GALAXY SHAPE? The #MilkyWay is a barred spiral #galaxy with more than 200000 million stars… our sun is 30000 lightyears from the center where is a black hole. Sun's Galactic rotation period is about 240 M years! Image: Illustration by R.Hurt, JPL-Caltech, NASA
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4 years
Incredible image of #Jupiter made by the Hubble Space Telescope (HST) last August, 25th. Incredible colour, details and... you can see also the moon Europa at left. Wonderful !
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2 years
Wonderful #MilkyWay image taken from a dark area of Monegros, Spain, by Lluis Romero, an active astrophotography specialist member of @AstroSabadell .
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Titan has rivers, lakes, seas and deltas of ethane and methane, in a cycle similar to the water cycle on our planet, with rains of large drops that fall slowly due to the weak gravity of this moon of Saturn…
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3 years
According to current knowledge, what is the age estimation of… 1) Universe: 13770 million years 2) Older star in Milky Way: 13000 million years 3) Sun: 4600 million years 4) Earth: 4500 million years Illustration: NASA
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6 years
See in this GIF an unnusual variable star, V838 Mon, that exploded doing several bursts. It could be observed by amateurs with just a small telescope. The GIF has been done adding several images by the Hubble Space Telescope.
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5 years
Extraordinary rotation of #Mars seen in 1999 by Hubble Space Telescope. You can see deserts, mountains, storms, craters, the polar cap and many wonderful details.
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1 year
NASA and ESA have started planning for future mission to Uranus and Neptune, still without any concrete project. Both agencies focus on a mass spectrometer to measure in situ the atmospheric composition: Images: Neptune Voyager2 images nearly 35 years ago
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4 years
There are rumors that new astrobiology findings will be released tomorrow by Nature magazine. They could refer to some evidences of microbe life in the clouds of Venus. It’s just a rumor, excuse me if it’s not true... More info... tomorrow Image: JAXA
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2 years
Jupiter’s large rotating storms imaged by NASA’s Juno probe last Nov. 29, 2021. Kevin M. Gill processed the image to enhance the color and contrast, using raw JunoCam data. Juno info:
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3 years
Neptune storms ! Remembering wonderful images taken by Voyager 2 in 1989 showing the dark spot and many bright features, white clouds, in Neptune’s atmosphere. Credit: NASA Voyager 2 team
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5 years
Remembering Carl Sagan: “ I don’t want to believe. I want to know “.
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4 years
Today, 59 years ago, cosmonaut Yuri Gagarin, in the Vostok rocket, was the first human to fly in space. He did a complete orbit around Earth in a 108 minutes. “I don’t see any god here” “I see Earth! It is so beautiful!” Video from @CaliaDomenico
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2 years
The rotation of Jupiter is huge: only 10 hours with jet speeds reaching 100 m/sec. It’s huge for a planet with a diameter of 140000 km ! The jets divide Jupiter’s clouds into distinctive bands, as seen in this old NASA’s Voyager animation:
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1 year
Three asteroid belts around the star Fomalhaut!! According this infrared image by James Webb Space Telescope, this star has 3 belts including 2 never-before-seen inner belts. The external one seems to be a bigger version of our own Kuiper belt!:
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4 years
#Jupiter red spot is reducing its size but it is still the biggest storm in our Solar System by far. It is formed by water and ammonia clouds. The GIF provided below was obtained by #NASA #Juno spacecraft. The images were processed by Justin Cowart
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3 years
Good morning ! Enjoy these wonderful sights from the windows of the International Space Station! Via @OlegMKS
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5 years
Extraordinary rotation of #Mars seen in 1999 by Hubble Space Telescope. You can see deserts, mountains, storms, craters, the polar cap and many wonderful details.
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3 years
Today 87 years ago Carl Sagan was born. An Astronomer? Scientist? Much more!!!! Enjoy this video Via @Humanists_UK
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3 years
An incredible image of Comet Leonard taken by Daniele Gasparri from Atacama desert in Chile with a 20 degrees tail and a disconnection close to the coma. Equipment: Sony A7S camera with 105 mm f2.8 lens and averaged 48 images of 30 sec  Author’s website:
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1 year
Carl Sagan: “Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.”
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1 year
Iris Nebula, Caldwell 4, is a reflection nebula 1500 light-years far, close to an open cluster. Its light is reflecting remaining gas and dust after the birth of its central star. Image: 3.5 hours CMOS by Jaume Zapata from our upgraded #Anysllum #observatory @AstroSabadell
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2 years
The James Webb Space Telescope obtained this wonderful image of NGC 7469, a face-on spiral galaxy 90000 light-years in diameter, 220 million light-years distant with an active galactic nucleus (AGN). Image by JWST MIRI, NIRCam and NIRspec instruments.
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3 years
The Elephant's Trunk Nebula is a concentration of interstellar gas and dust about 2,400 light years distant. It’s a site of star formation containing some less than 100,000 years old!! Image: Lluis Romero @AstroSabadell member.
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5 years
Wonderful video of Venus planet in the ultraviolet from the japanese JAXA’s Akatsuki probe. The planet’s thick atmosphere make not possible to see the Venus surface. Only done by soviet landers and by radar. Credit: JAXA/Akatsuki/ISAS/DARTS/Damia Bouic
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2 years
Tarantula nebula is situated 170000 lightyears far in the Large Magellanic Cloud, a satellite galaxy of our Milky Way. In this video we see a wonderful zoom to this nebula with last images done by the James Webb Space Telescope, revealing new structures.
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3 years
The rotation of Jupiter is huge: only 10 hours with jet speeds reaching 100 m/sec. It’s huge for a planet with a diameter of 140000 km ! The jets divide Jupiter’s clouds into distinctive bands, as seen in this Juno’s wonderful image, processed by David Marriott. @NASAJuno
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5 years
Amazing earthrise obtained by the japanese lunar orbiter Kayuga ten years ago. Note the blue #earth in contrast with the monocrome #moon surface.
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3 years
Wonderful Comet C/2021 A1 Leonard just today, Dec. 21 See the incredible details seen in its tale… Image by @MichaelMattiazz . More details about the image in left side of it. Congrats Michael Mattiazzo! Pic via @astrocatinfo
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2 years
The most volcanic object in our Solar System is Io, a moon of Jupiter severy affected by tidal forces from the biggest planet in our Solar System. Here some general images and close-up ones done by Galileo probe.
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7 years
Two images of Pan moon with its peculiar shape taken by #Cassini this March. A strange #moon into the ring A of #Saturn , see the third pic
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3 years
This extraordinary image of M51 spiral galaxy is the Astronomy Picture of the Day of Sept. 2nd. It is 31 million lightyears distant and has a mass of 160 billion suns... This is the twelfth image of Josep M Drudis, member of @astrosabadell , published on the NASA APOD website!!
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3 years
April, 12th 1961 the first man in the space... Yuri Gagarin: “Orbiting Earth in the spaceship, I saw how beautiful our planet is. People, let us preserve and increase this beauty, not destroy it!”
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