astronomical 451  results

Illustration of the triple star system HD 131399, as seen from a planet. The system consists of a close binary pair of low-mass, red stars, separated by about 10 astronomical units (AU), which is in turn in orbit around a more massive, white main-sequence star at a distance of several hundred AU. Astronomers thought they detected a planet around the more massive star, HD 131399 A. However, the so-called planet, dubbed HD 131399 Ab or Scorpion-1b, is now thought to be a background star. This image imagines the supposed planet viewed from a nearby moon.Illustration of the triple star system HD 131399, as seen from a planet. The system consists of a close binary pair of low-mass, red stars, separated by about 10 astronomical units (AU), which is in turn in orbit around a more massive, white main-sequence star at a distance of several hundred AU. Astronomers thought they detected a planet around the more massive star, HD 131399 A. However, the so-called planet, dubbed HD 131399 Ab or Scorpion-1b, is now thought to be a background star. This image imagines the supposed planet viewed from a nearby moon.
Illustration of the blue giant star HD 37974, in the Large Magellanic Cloud. Astronomers suspect that it is surrounded by a dusty disc, stretching for 60 times the distance of Pluto's orbit from the Sun (about 3,000 astronomical units, or AU). The disc could be a remnant from planet formation, or the beginning of the planet-creation process.Illustration of the blue giant star HD 37974, in the Large Magellanic Cloud. Astronomers suspect that it is surrounded by a dusty disc, stretching for 60 times the distance of Pluto's orbit from the Sun (about 3,000 astronomical units, or AU). The disc could be a remnant from planet formation, or the beginning of the planet-creation process.
March 3, 2017: Czech Republic, Central Bohemia Region, Prague, Prague Old Town Square, Astronomical Clock, Bohemia, Checy, Astronomical clockMarch 3, 2017: Czech Republic, Central Bohemia Region, Prague, Prague Old Town Square, Astronomical Clock, Bohemia, Checy, Astronomical clock
Exterior of old town hall and astronomical clock tower, old town, unesco, prague, Czech republicExterior of old town hall and astronomical clock tower, old town, unesco, prague, Czech republic
Amazing view of modern telescopes on dark mountaintop against cloudy sky at astronomical observatory on island of La Palma in SpainAmazing view of modern telescopes on dark mountaintop against cloudy sky at astronomical observatory on island of La Palma in Spain
October 13, 2020: Various modern telescopes including MAGIC or Major Atmospheric Gamma Imaging Cherenkov Telescope located on hill slope at astronomical observatory on island of La Palma in SpainOctober 13, 2020: Various modern telescopes including MAGIC or Major Atmospheric Gamma Imaging Cherenkov Telescope located on hill slope at astronomical observatory on island of La Palma in Spain
Largest optical reflecting telescope Gran Telescopio Canarias located on grassy hilltop against cloudy sky at astronomical observatory on island of La Palma in SpainLargest optical reflecting telescope Gran Telescopio Canarias located on grassy hilltop against cloudy sky at astronomical observatory on island of La Palma in Spain
Various modern telescopes including MAGIC or Major Atmospheric Gamma Imaging Cherenkov Telescope located on hill slope at astronomical observatory on island of La Palma in SpainVarious modern telescopes including MAGIC or Major Atmospheric Gamma Imaging Cherenkov Telescope located on hill slope at astronomical observatory on island of La Palma in Spain
Various modern telescopes including MAGIC or Major Atmospheric Gamma Imaging Cherenkov Telescope located on hill slope at astronomical observatory on island of La Palma in SpainVarious modern telescopes including MAGIC or Major Atmospheric Gamma Imaging Cherenkov Telescope located on hill slope at astronomical observatory on island of La Palma in Spain
MAGIC telescope with mirror segments against cloudless blue sky in daylight at astronomical observatory site on island of La Palma in SpainMAGIC telescope with mirror segments against cloudless blue sky in daylight at astronomical observatory site on island of La Palma in Spain
MAGIC telescope with mirror segments against cloudless blue sky in daylight at astronomical observatory site on island of La Palma in SpainMAGIC telescope with mirror segments against cloudless blue sky in daylight at astronomical observatory site on island of La Palma in Spain
October 13, 2020: Various modern telescopes including MAGIC or Major Atmospheric Gamma Imaging Cherenkov Telescope located on hill slope at astronomical observatory on island of La Palma in SpainOctober 13, 2020: Various modern telescopes including MAGIC or Major Atmospheric Gamma Imaging Cherenkov Telescope located on hill slope at astronomical observatory on island of La Palma in Spain
Various modern telescopes including MAGIC or Major Atmospheric Gamma Imaging Cherenkov Telescope located on hill slope at astronomical observatory on island of La Palma in SpainVarious modern telescopes including MAGIC or Major Atmospheric Gamma Imaging Cherenkov Telescope located on hill slope at astronomical observatory on island of La Palma in Spain
MAGIC telescope with mirror segments against cloudless blue sky in daylight at astronomical observatory site on island of La Palma in SpainMAGIC telescope with mirror segments against cloudless blue sky in daylight at astronomical observatory site on island of La Palma in Spain
Largest optical reflecting telescope Gran Telescopio Canarias located on grassy hilltop against clear blue sky at astronomical observatory on island of La Palma in SpainLargest optical reflecting telescope Gran Telescopio Canarias located on grassy hilltop against clear blue sky at astronomical observatory on island of La Palma in Spain
Amazing view of modern telescopes on dark mountaintop against cloudy sky at astronomical observatory on island of La Palma in SpainAmazing view of modern telescopes on dark mountaintop against cloudy sky at astronomical observatory on island of La Palma in Spain
Amazing view of modern telescopes on dark mountaintop against cloudy sky at astronomical observatory on island of La Palma in SpainAmazing view of modern telescopes on dark mountaintop against cloudy sky at astronomical observatory on island of La Palma in Spain
Amazing view of modern telescopes on dark mountaintop against cloudy sky at astronomical observatory on island of La Palma in SpainAmazing view of modern telescopes on dark mountaintop against cloudy sky at astronomical observatory on island of La Palma in Spain
Low angle detail of large sized telescope of Cherenkov Telescope Array with metal tower and part of frame located at astronomical observatory on island of La Palma in SpainLow angle detail of large sized telescope of Cherenkov Telescope Array with metal tower and part of frame located at astronomical observatory on island of La Palma in Spain
May 19, 2020: Germany- Baden-Wurttemberg- Heilbronn- Ornate astronomical clock of historical town hallMay 19, 2020: Germany- Baden-Wurttemberg- Heilbronn- Ornate astronomical clock of historical town hall
Detail of astronomical clock on Tyn Church, Prague, Czech RepublicDetail of astronomical clock on Tyn Church, Prague, Czech Republic
September 16, 2019: Elevated view of houses with red roofs as seen from Prague Astronomical Clock at Old Town Square, Prague, Bohemia, Czech RepublicSeptember 16, 2019: Elevated view of houses with red roofs as seen from Prague Astronomical Clock at Old Town Square, Prague, Bohemia, Czech Republic
April 30, 2016: Detail of Astronomical clock (Orloj) before reconstruction in 2018, Old Town Square, Prague, Bohemia, Czech RepublicApril 30, 2016: Detail of Astronomical clock (Orloj) before reconstruction in 2018, Old Town Square, Prague, Bohemia, Czech Republic
Fuerteventura, Spain. - March 1, 2018: Panoramic view of winding road with cyclists at Astronomical Viewpoint of SicasumbreFuerteventura, Spain. - March 1, 2018: Panoramic view of winding road with cyclists at Astronomical Viewpoint of Sicasumbre
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United Kingdom, England, Stonehenge . Stonehenge is a Neolithic site located near Amesbury in Wiltshire, England. It is the most famous and impressive cromlech: composed of a circular set of large erect stones, known as megaliths, sometimes surmounted by colossal horizontal elements, it is probably a prehistoric astronomical observatoryUnited Kingdom, England, Stonehenge . Stonehenge is a Neolithic site located near Amesbury in Wiltshire, England. It is the most famous and impressive cromlech: composed of a circular set of large erect stones, known as megaliths, sometimes surmounted by colossal horizontal elements, it is probably a prehistoric astronomical observatory
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Jantar Mantar Astronomical Park with measurement devices, New Delhi, IndiaJantar Mantar Astronomical Park with measurement devices, New Delhi, India
Man looking through arch at the Jantar Mantar Astronomical Park, New Delhi, IndiaMan looking through arch at the Jantar Mantar Astronomical Park, New Delhi, India
Jantar Mantar Astronomical Park in Jaipur, IndiaJantar Mantar Astronomical Park in Jaipur, India
Staircase at the Jantar Mantar Astronomical Park, New Delhi, IndiaStaircase at the Jantar Mantar Astronomical Park, New Delhi, India
Illustration of the planet Kepler 1625b and its proposed exomoon. Kepler 1625 is a Sun-like star some 4,000 light-years distant in Cygnus. It is about 80 percent of the radius of the Sun but about 8 percent more massive. The star has at least one known planet. Called Kepler 1625b, it is a large gas giant, up to 12 times the diameter of Jupiter and orbiting within the star's habitable zone. In 2018, astronomers reported that the planet might be orbited by a satellite - an exomoon - although this remains to be confirmed. The suspected moon is Neptunian in size, orbiting its planet at a distance of 20 times the planet's radius.Illustration of the planet Kepler 1625b and its proposed exomoon. Kepler 1625 is a Sun-like star some 4,000 light-years distant in Cygnus. It is about 80 percent of the radius of the Sun but about 8 percent more massive. The star has at least one known planet. Called Kepler 1625b, it is a large gas giant, up to 12 times the diameter of Jupiter and orbiting within the star's habitable zone. In 2018, astronomers reported that the planet might be orbited by a satellite - an exomoon - although this remains to be confirmed. The suspected moon is Neptunian in size, orbiting its planet at a distance of 20 times the planet's radius.
Illustration of the planet Kepler 1625b and its proposed exomoon. Kepler 1625 is a Sun-like star some 4,000 light-years distant in Cygnus. It is about 80 percent of the radius of the Sun but about 8 percent more massive. The star has at least one known planet. Called Kepler 1625b, it is a large gas giant, up to 12 times the diameter of Jupiter and orbiting within the star's habitable zone. In 2018, astronomers reported that the planet might be orbited by a satellite - an exomoon - although this remains to be confirmed. The suspected moon is Neptunian in size, orbiting its planet at a distance of 20 times the planet's radius.Illustration of the planet Kepler 1625b and its proposed exomoon. Kepler 1625 is a Sun-like star some 4,000 light-years distant in Cygnus. It is about 80 percent of the radius of the Sun but about 8 percent more massive. The star has at least one known planet. Called Kepler 1625b, it is a large gas giant, up to 12 times the diameter of Jupiter and orbiting within the star's habitable zone. In 2018, astronomers reported that the planet might be orbited by a satellite - an exomoon - although this remains to be confirmed. The suspected moon is Neptunian in size, orbiting its planet at a distance of 20 times the planet's radius.
Illustration of the planet Kepler 1625b and its proposed exomoon, transiting their star. Kepler 1625 is a Sun-like star some 4,000 light-years distant in Cygnus. It is about 80 percent of the radius of the Sun but about 8 percent more massive. The star has at least one known planet. Called Kepler 1625b, it is a large gas giant, up to 12 times the diameter of Jupiter and orbiting within the star's habitable zone. In 2018, astronomers reported that the planet might be orbited by a satellite - an exomoon - although this remains to be confirmed. The suspected moon is Neptunian in size, orbiting its planet at a distance of 20 times the planet's radius.Illustration of the planet Kepler 1625b and its proposed exomoon, transiting their star. Kepler 1625 is a Sun-like star some 4,000 light-years distant in Cygnus. It is about 80 percent of the radius of the Sun but about 8 percent more massive. The star has at least one known planet. Called Kepler 1625b, it is a large gas giant, up to 12 times the diameter of Jupiter and orbiting within the star's habitable zone. In 2018, astronomers reported that the planet might be orbited by a satellite - an exomoon - although this remains to be confirmed. The suspected moon is Neptunian in size, orbiting its planet at a distance of 20 times the planet's radius.
SDSS 1557 is a binary star system, 1000 light-years away, consisting of a white dwarf orbiting a brown dwarf, Astronomers have found that the system is surrounded by a narrow disc or ring rich in rocky and metallic elements, which they suggest are in the process of coming together (accreting) to form new planets It's the first time evidence of rocky planet formation has been seen in a binary star systemSDSS 1557 is a binary star system, 1000 light-years away, consisting of a white dwarf orbiting a brown dwarf, Astronomers have found that the system is surrounded by a narrow disc or ring rich in rocky and metallic elements, which they suggest are in the process of coming together (accreting) to form new planets It's the first time evidence of rocky planet formation has been seen in a binary star system
Diagram showing the interior of the Sun. The solar interior is composed of a core (central 30%), a radiative zone outside this, and finally a convective layer occupying the outermost 30% or so. Solar astronomers, using a branch of astronomy called helioseismology, have established that the Sun vibrates in several different modes, somewhat like the skin of a drum.Diagram showing the interior of the Sun. The solar interior is composed of a core (central 30%), a radiative zone outside this, and finally a convective layer occupying the outermost 30% or so. Solar astronomers, using a branch of astronomy called helioseismology, have established that the Sun vibrates in several different modes, somewhat like the skin of a drum.
Illustration comparing the size of Earth (left) with the planet Uranus. Uranus is the seventh planet from the Sun, with an average distance from it of 19.2 times the Earth-Sun distance. A fluid world of mostly hydrogen and helium, it is rich in ices of methane, water and ammonia, causing some astronomers to label it (along with Neptune) an ice giant. With a diameter of four times that of the Earth, Uranus is the Solar System's third largest planet (after Jupiter and Saturn).Illustration comparing the size of Earth (left) with the planet Uranus. Uranus is the seventh planet from the Sun, with an average distance from it of 19.2 times the Earth-Sun distance. A fluid world of mostly hydrogen and helium, it is rich in ices of methane, water and ammonia, causing some astronomers to label it (along with Neptune) an ice giant. With a diameter of four times that of the Earth, Uranus is the Solar System's third largest planet (after Jupiter and Saturn).
Illustration of a Voyager probe at the Oort cloud. The two Voyager probes were launched in late 1970s. Voyager 1 has now passed into interstellar space - beyond the influence of the Sun's magnetic field - and Voyager 2 is set to do so in the early 2020s. Some 300 years from now, the probes will enter the beginnings of the Oort cloud - a swarm of inert comet nuclei surrounding the Sun up to perhaps 50,000 astronomical units from it. The cloud is so vast that the probes are expected to take around 40,000 years to pass through it into clear space.Illustration of a Voyager probe at the Oort cloud. The two Voyager probes were launched in late 1970s. Voyager 1 has now passed into interstellar space - beyond the influence of the Sun's magnetic field - and Voyager 2 is set to do so in the early 2020s. Some 300 years from now, the probes will enter the beginnings of the Oort cloud - a swarm of inert comet nuclei surrounding the Sun up to perhaps 50,000 astronomical units from it. The cloud is so vast that the probes are expected to take around 40,000 years to pass through it into clear space.
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Hotel and the astronomic observatory at the Gornergrat, in the background the Matterhorn or Cervino mount, Zermatt, Valais, Switzerland, EuropeHotel and the astronomic observatory at the Gornergrat, in the background the Matterhorn or Cervino mount, Zermatt, Valais, Switzerland, Europe
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Astronomical photography- M16 eagle nebulaAstronomical photography- M16 eagle nebula
reddish volcano rock on the Caldera de Taburiente, national park, La Palma, Canary islands, Spainreddish volcano rock on the Caldera de Taburiente, national park, La Palma, Canary islands, Spain
March 3, 2017: Czech Republic, Central Bohemia Region, Prague, Prague Old Town Square, Astronomical Clock, Bohemia, Checy,March 3, 2017: Czech Republic, Central Bohemia Region, Prague, Prague Old Town Square, Astronomical Clock, Bohemia, Checy,
Structure in astronomical park, New Delhi, IndiaStructure in astronomical park, New Delhi, India
Structure in astronomical park in New Delhi, IndiaStructure in astronomical park in New Delhi, India
Jantra Mantra astronomical park, New Delhi, IndiaJantra Mantra astronomical park, New Delhi, India
Prague orloj (Astronomical Clock), Prague, Czech RepublicPrague orloj (Astronomical Clock), Prague, Czech Republic
October 15, 2019: Europe, Poland, Swietokrzyskie Voivodeship, Jedrzejow - Przypkowscy Clock MuseumOctober 15, 2019: Europe, Poland, Swietokrzyskie Voivodeship, Jedrzejow - Przypkowscy Clock Museum
October 15, 2019: Europe, Poland, Swietokrzyskie Voivodeship, Jedrzejow - Przypkowscy Clock MuseumOctober 15, 2019: Europe, Poland, Swietokrzyskie Voivodeship, Jedrzejow - Przypkowscy Clock Museum
October 15, 2019: Europe, Poland, Swietokrzyskie Voivodeship, Naglowice - Mikolaj Rej museumOctober 15, 2019: Europe, Poland, Swietokrzyskie Voivodeship, Naglowice - Mikolaj Rej museum

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