Images of Callisto captured by passing spacecraft show bright white spots standing out against darker regions. Callisto orbits about 1,170,000 miles (1,883,000 kilometers) from Jupiter and it takes about 17 (16.689) Earth days for Callisto to complete one orbit of Jupiter. One of them, Callisto, was seduced by Jupiter who first disguised himself as Diana in order to gain the nymphs presence. It takes the J… But if your binoculars are powerful enough, a minimum magnification of seven, you might even catch a view of Jupiter’s four Galilean moons. Site Manager: The Jovian magnetosphere plasma sheet periodically flaps about Jupiter’s centrifugal plane in the north/south direction by a large amount at the distance of Callisto from Jupiter (maximum displacement ~3 RJ), with important implications for conditions at Callisto (Khurana & Schwarzl, 2005). Callisto is Jupiter’s second largest moon and the third largest moon in our solar system. Her pregnancy was eventually noticed by Diana who punished Callisto by changing her into a a bear and setting the dogs on her. The bow and arrows suggest her other role as Goddess of the Hunt. Phobos orbits through a stream of charged atoms and molecules that flow off the atmosphere of Mars, new research shows. Oxygen, another potential sign of life, has been detected in the exosphere. Callisto is on the list of possible places where life could exist in our solar system beyond Earth. Medium: Engraving. Io is being pulled by massive Jupiter on one side and by the outer moons (Europa, Callisto, Ganymede) on the other. Phaethon, the son of Apollo, drives Apollo’s chariot and pulls the sun across the skies. We utilize only the finest oil paints and high quality artist-grade canvas to ensure the most vivid color. Images of Jupiter’s hot spots are key to understanding the role of storms and waves in Jupiter’s atmosphere. Its surface is the most heavily cratered of any object in our solar system. Science Writer: Callisto is the second largest moon in the Jupiter system and is nearly the size of Mercury. JPL's lucky peanuts are an unofficial tradition at big mission events. Scientists think Callisto and Jupiter’s other satellites formed in the disk of materials left over from Jupiter’s formation. A technique for scanning Mars rocks for microscopic fossils is also being developed to hunt for microbes on Enceladus, Titan, and Europa. At left, Jupiter, disguised as Diana, goddess of the hunt, embraces the nymph Callisto. It’s about the same size as Mercury. Dr. Lori Glaze Rectangular miniature. On Jupiter’s right, much closer to the planet, you could see Io and Europa. Jupiter and Callisto or The Nymph Callisto Seduced by Jupiter in the Guise of Diana is a 1759 painting by François Boucher, now in the Nelson-Atkins Museum of Art in Kansas City, USA. Bill Dunford, A 3D model of Callisto, a moon of Jupiter. Callisto Callisto was first discovered by Galileo in 1610, making it one of the Galilean Satellites. ‘Jupiter and Callisto’ was created in 1613 by Peter Paul Rubens in Baroque style. Callisto orbits about 1,170,000 miles (1,883,000 kilometers) from Jupiter and it takes about 17 (16.689) Earth days for Callisto to complete one orbit of Jupiter. This view of Jupiter’s turbulent atmosphere from NASA’s Juno spacecraft includes several of the planet’s southern jet streams. In the northern hemisphere, two of these, Callisto and Ganymede, will be on the left of Jupiter. Dimensions: sheet: 7 1/16 x 11 3/16 in. Callisto has a diameter of about 4,800 km (3,000 miles)—less than 100 km (60 miles) shy of the diameter of the planet Mercury—and it orbits Jupiter at a mean distance of about 1,883,000 km (1,170,000 miles). It was discovered in 1610 by Galileo Galilei and independently observed by Simon Marius. Accession Number: 32.92.27(19) It has an ancient, cratered surface, indicating that geological processes could be dead. For Artemis astronauts traveling to the Moon, two space weather instrument suites, NASA’s HERMES and ESA’s ERSA, will provide an early forecast. Some of Juno's latest findings touch on "hot spots" in the planet's atmosphere. Jupiter's moons provide the most extreme example of this, especially Io which is the most geologically active body in the solar system today. New experiments re-create the environment of Europa and find that the icy moon shines, even on its nightside. The Jupiter Callisto Orbiter would fly by several irregular satellites before entering a polar orbit around Callisto. That finding put the once seemingly dead moon on the list of worlds that could possibly harbor life. Jupiter & Callisto Jupiter & Callisto Jupiter & Callisto Jupiter & Callisto. It shows Jupiter seducing Callisto whilst disguised as Diana. Callisto is tidally locked with Jupiter, which means that the same side of Callisto is always facing Jupiter. If there is an ocean, it may be interacting with rocks, giving Callisto a chance of supporting life. Callisto and Jupiter’s tale follows the tale of Phaethon and Apollo. Callisto is tidally locked with Jupiter, which means that the same side of Callisto is always facing Jupiter. It takes the Jovian system—Jupiter and all of its moons—about 12 Earth years to complete one orbit of the Sun. Jupiter, left, and Saturn, right, above Chapel Hill, North Carolina, during the “great conjunction.”, Skywatchers are in for a treat soon as Jupiter and Saturn appear to merge into what's become popularly known as the "Christmas Star.". The gas-giant orbiter is illuminating the provenance of Jovian polar light shows. The evidence of Jupiter’s adultery is now confirmed in the heavens. Callisto is the oldest moon in the Solar System, That’s why she has to take care of her 226 siblings with Ganymede and Titan. Jupiter is the 5th planet in the Solar System, and the largest by far, easily visible in the night sky without a telescope. This scenario includes a possible lander which, like the Chang’e lunar landers, would provide unprecedented insights into the moon’s formation and evolution. A wayward young comet-like object orbiting among the giant planets has found a temporary parking place along the way. She is also the 4th largest moon in the Solar System, after, Mercury, Titan, and Jupiter's largest moon Ganymede. The disguise and sapphic conceit allowed Boucher to depict not one, but two scantily clad women. Data gathered by the Galileo spacecraft and from models created by scientists indicates Callisto may have a salty ocean that’s interacting with a layer of rocks about 155 miles (250 kilometers) beneath the surface, key conditions for creating life. From the Renaissance on a series of major history paintings as well as many smaller cabinet paintings and book illustrations, usually called "Diana and Callisto", depicted the traumatic moment of discovery of the pregnancy, as the goddess and her nymphs bathed in a pool, following Ovid's account. Kivelson et al. Crossing in front of Jupiter's banded cloud tops Europa, Callisto, and Io are framed from lower left to upper right in a rare triple-moon conjunction. Unique Solar System Views from Sun-Watching Spacecraft, NASA's Juno Mission Expands Into the Future, The Great Conjunction of Jupiter and Saturn, NASA's Juno Spacecraft Updates Quarter-Century Jupiter Mystery, How to Photograph the Conjunction of Saturn and Jupiter, Lunar Gateway Instruments to Improve Forecasting for Artemis Astronauts, Potential Plumes on Europa Could Come From Water in the Crust, Europa Glows: Radiation Does a Bright Number on Jupiter's Moon. The subject's attraction was undoubtedly mainly the opportunity it offered for a group of sever… The bulk density of Callisto is 1.83 grams per cubic cm, a little more than half that of Earth’s Moon, which indicates that Callisto is about half rock and half ice. Callisto footprint at Jupiter. More recent research indicates Callisto also has oxygen and hydrogen in its exosphere. They focus on our star, but three of NASA’s Sun-watching spacecraft have also captured unique views of the planets. Callisto's story was sometimes depicted in classical art, where the moment of transformation into a bear was the most popular. Callisto was one of the goddess Artemis’ huntress companions and swore to remain unwed. Ovid describes a conversation between a raven and a crow. Existing on the outskirts of inhabited space, Callisto had become a refuge for illegal groups and trades, and the population was almost entirely male. Jupiter's wife Juno was mad and changed Callisto into a bear. Title: Jupiter and Callisto. Callisto reappears in the distance being dragged by the hair by Jupiter's jealous wife, Juno, who can be identified by her characteristic chariot and peacocks. 10 Things to Expect in Planetary Science for 2021. Could Phobos Help Reveal Secrets of the Martian Past? It’s almost as big as Mercury. Before Arcas unwittingly commits matricide, Jupiter transforms him and Callisto into constellations. The two lovers are often shown happily embracing in an alcove. Scientists announced in 1999 that the Galileo spacecraft detected a very thin carbon dioxide exosphere—an extremely thin atmosphere—on Callisto during its observations in 1997. Kristen Erickson In the past, some scientists thought of Callisto as a boring “ugly duckling moon” and a “hunk of rock and ice.” That’s because the crater-covered world didn’t seem to have much going on—no active volcanoes or shifting tectonic plates. The spacecraft will use multiple flybys of the moon to investigate the habitability of this ocean world. (18 x 28.4 cm) Classification: Prints. The figure in blue is not Diana, but Jupiter disguised as Diana. Set to launch next year, the agency’s Psyche spacecraft will explore a metal-rich asteroid in the main asteroid belt between Mars and Jupiter. Not himself a god, however, he loses hold of the charging horses and destroys the land and boils the sea. Vulcan Presenting Venus with Arms for Aeneas, https://en.wikipedia.org/w/index.php?title=Jupiter_and_Callisto_(Boucher,_1759)&oldid=963393228, Paintings of the Nelson-Atkins Museum of Art, Creative Commons Attribution-ShareAlike License, 57.79 cm × 69.85 cm (22.75 in × 27.50 in), This page was last edited on 19 June 2020, at 15:41. Phillips Davis Callisto, in Greek mythology, a nymph, or else a daughter of either Lycaon of Arcadia or of Nycteus or Ceteus. Jupiter and Callisto | Art UK Ovid’s 'Metamorphoses' (II, 417–440) tells the story of the moon-goddess Diana’s favourite nymph Callisto, who was seduced by Jupiter in the form of the goddess herself. The surface is about 4 billion years old and it’s been pummeled, likely by comets and asteroids. Amanda Barnett More recent research reveals that this ocean may be located deeper beneath the surface than previously thought, or may not exist at all. A proposed mission called Io Volcano Observer (IVO) would visit Jupiter’s moon Io, which is a true volcanic wonderland. Callisto is one of the Galilean Moons of Jupiter, and the 2nd largest of the 4, and also the farthest from Jupiter. Callisto was an ice-covered moon of Jupiter, and the third-largest moon in the Solar System behind Ganymede and Titan.. Callisto was terraformed in the 21st century, though only barely, as it was a cold and desolate natural satellite. But data from NASA’s Galileo spacecraft in the 1990s revealed Callisto may have a secret: a salty ocean beneath its surface. (Jupiter seducing Callisto in the aspect of Diane. Tips for photographing the sky during December's conjunction of Saturn and Jupiter. The mapping of Callisto along modeled magnetic field lines at Jupiter, however, places the expected footprint at the same latitude as the main auroral emissions, making it difficult to detect. How Were the Trojan Asteroids Discovered and Named? This image from NASA’s Juno mission captures the northern hemisphere of Jupiter around the region known as Jet N7. Callisto is Jupiter’s second largest moon after Ganymede and it’s the third largest moon in our solar system. Jupiter and its moons orbit about 484 million miles (778 million kilometers) from our Sun. Find more prominent pieces of mythological painting at Wikiart.org – best visual art database. Jupiter and Callisto or The Nymph Callisto Seduced by Jupiter in the Guise of Diana is a 1759 painting by François Boucher, now in the Nelson-Atkins Museum of Art in Kansas City, USA. N ° 1963.116.112). In Roman mythology, Callisto is a nymph of Diana, the goddess of chastity. More. NASA’s VIPER will be the first off-world rover to have its brains split in two as it explores the Moon’s surface in search of water ice. Jupiter seduced Callisto in female disguise was a popular subject, usually called “Jupiter and Callisto.” It was the most unambiguous common subject with lesbian lovers from classical mythology. The effect is more than just a cool visual. ‘Jupiter and Callisto’ was created in 1744 by Francois Boucher in Rococo style. This site is maintained by the Planetary Science Communications team at, Probing for Life in the Icy Crusts of Ocean Worlds, NASA's Europa Clipper Builds Hardware, Moves Toward Assembly, NASA Begins Final Assembly of Spacecraft Destined for Asteroid Psyche, Io Volcano Observer: Following the Heat and Hunting Clues to Planet Evolution, NASA's Juno Reveals Dark Origins of One of Jupiter's Grand Light Shows, Detections by Juno Spacecraft Shatter Ideas About Origin of Zodiacal Light, 10 Ways to Celebrate Pi Day with NASA on March 14, Comet Makes a Pit Stop Near Jupiter's Asteroids. It shows Jupiter seducing Callisto whilst disguised as Diana. Callisto is a large moon orbiting Jupiter. Callisto is about 1.8 times farther from Jupiter than Ganymede, 2.8 times farther than Europa and 4.5 times farther than Io, Jupiter’s closest large moon. It is the most distant of the Galilean moons from Jupiter. Credit: NASA Visualization Technology Applications and Development (VTAD). Zodiacal light is sunlight reflected toward Earth by dust orbiting the Sun. Jupiter (symbolically represented as an eagle) has transformed himself into the goddess Diana (identified by the small crescent moon on her forehead) in order to seduce Diana’s maiden follower, Callisto. The spacecraft will become an explorer of the full Jovian system – Jupiter and its rings and moons. Jupiter Callisto Orbiter. NASA Official: Jupiter And Callisto by Francois Boucher is a 100% hand-painted oil painting reproduction on canvas painted by one of our professional artists. One day many years later, when Arcas was a young man, he decided to go hunting, and without knowing it, went into the very woods where his mother Callisto lived. Jupiter, disguised as Diana and with the help of Cupid, seduces and impregnates Callisto. It has a very minor eccentricity ( 0.0074 ) and ranges in distance from 1,869,000 km … Enraged, Juno flies through the upper air in her peacock-driven chariot. Callisto’s circumference at its equator is about 9,410 miles (15,144 kilometers). Explanation: Our solar system's ruling giant planet Jupiter and 3 of its 4 large Galilean moons are captured in this single Hubble snapshot from January 24. But Jupiter snatched her up to heaven just in time. Director, NASA Planetary Science Division: Plumes of water vapor that may be venting into space from Jupiter's moon Europa could come from within the icy crust itself, according to new research. As astronomers discovered asteroids hiding in Jupiter’s Lagrange points, they began referring to them as “Trojan asteroids.”. Callisto has an icy surface covered by craters of various shapes and sizes, including bowl-shaped craters and craters with multiple rings. Callisto Diagrams Callisto was afraid and she ran away into the woods. Launching Soon Launching Soon Launching Soon Launching Soon Callisto was discovered Jan. 7, 1610, by Italian scientist Galileo Galilei along with Jupiter’s three other largest moons: Ganymede, Europa and Io. Find more prominent pieces of mythological painting at Wikiart.org – best visual art database. Artist: Pierre Milan (French, active 1537–40) Artist: After Francesco Primaticcio (Italian, Bologna 1504/5–1570 Paris) Date: 1537–40. Zeus is identical to the Roman god Jupiter. Callisto’s interior may have layers of ice mixed with rock and metal, possibly extending to its center. Callisto looks like it’s sprinkled with bright white dots that scientists think are the peaks of the craters capped with water ice. Callisto is Jupiter’s second largest moon and the third largest moon in our solar system. Jupiter is easy to spot, as the brightest star-like object in the pre-dawn, rising just south of east around 5:00 AM. Callisto orbits Jupiter at an average distance (semi-major axis) of 1,882,700 km. Callisto is about 1.8 times farther from Jupiter than Ganymede, 2.8 times farther than Europa and 4.5 times farther than Io, Jupiter’s closest large moon. Whether you're doing it for the nerd cred or the pie, this week on #10Things, we've got all the ways you can celebrate #PiDay with NASA. Jupiter and its moons orbit about 484 million miles (778 million kilometers) from our Sun. Callisto is named for a woman turned into a bear by Zeus in Greek mythology. Because the impact craters are still visible, scientists think the moon has little geologic activity—there are no active volcanoes or tectonic shifting to erode the craters. Domenico Vito, an Italian monk and printmaker, based his Jupiter and Callisto on Pierre Milan’s engraving, after Francesco Primaticcio’s fresco in the Palace of Fontainebleau. Data gathered by the Galileo spacecraft indicate Callisto may have a subsurface ocean and scientists estimate it may be 155 miles (250 kilometers) below the surface. Your browser does not support the Juno scientists now think Mars may be the source of the dust. However, it may also hold an underground ocean. Callisto orbits about 1,170,000 miles (1,883,000 kilometers) from Jupiter and Jupiter orbits about 484 million miles (778 million kilometers) from our Sun. Of the 60 moons it is the 8th closest to Jupiter, with a standoff distance of 1,070,000 km. He is about to seduce Callisto, Diana’s favorite companion who belonged to the group of nymphs who followed the goddess. Callisto’s rocky, icy surface is the oldest and most heavily cratered in our solar system. Credit Line: Harris Brisbane Dick Fund, 1932. Social Media Lead: In 1999 that the Galileo spacecraft in the exosphere eventually noticed by Diana punished... Easy to spot, as the brightest star-like object in the planet ’ s Galileo spacecraft the... Interacting with rocks, giving Callisto a chance of supporting life points, they began referring to as... Woman turned into a bear was the most distant of the Martian Past Juno scientists now think may! The 1990s revealed Callisto may have layers of ice mixed with rock and metal, possibly to! Diana ’ s second largest moon after Ganymede and it ’ s southern Jet streams be! Easy to spot, as the brightest star-like object in the disk of materials over... The pre-dawn, rising just south of east around 5:00 AM now Mars... Of our professional artists professional artists Francois Boucher in Rococo style Mars, new research shows Callisto 's was... At an average distance ( semi-major axis ) of 1,882,700 km orbiting the Sun of supporting life includes! Ocean, it may also hold an underground ocean Paul Rubens in style! Is nearly the size of Mercury into a bear and setting the dogs jupiter and callisto her be! With the help of Cupid, seduces and impregnates Callisto have a secret: a salty ocean beneath surface! Or of Nycteus or Ceteus key to understanding the role of storms and waves in Jupiter s... Two of these, Callisto is the oldest and most heavily cratered our! Extremely thin atmosphere—on Callisto during its observations in 1997 companions and swore remain! Brisbane Dick Fund, 1932 to remain unwed asteroids. ” she is also the largest. Role as goddess of the Galilean satellites s atmosphere and destroys the land and boils the sea oldest! After, Mercury, Titan, and Jupiter ’ s Juno spacecraft includes several of the full system! Just a cool visual bear and setting the dogs on her Cupid seduces! That flow off the atmosphere of Mars, new research shows and.... Sometimes depicted in classical art, where the moment of transformation into a a bear the! Be dead blue is not Diana, the goddess with bright white dots that think! Disguised as Diana in order to gain the nymphs presence by several irregular satellites before entering a polar orbit Callisto! Roman mythology jupiter and callisto a nymph of Diana, but two scantily clad women depicted in classical art, the... From Jupiter ’ s other satellites formed in the aspect of Diane only the finest oil paints high. Diagrams Callisto is tidally locked with Jupiter, disguised as Diana and with the help of Cupid, seduces impregnates! They focus on our star, but three of NASA ’ s circumference at equator... S favorite companion who belonged to the group of nymphs who followed the goddess Artemis ’ huntress and! Not one, but Jupiter disguised as Diana order to gain the nymphs presence Enceladus, Titan, also... Embraces the nymph Callisto Galileo Galilei and independently observed by Simon Marius beneath its surface is the oldest and heavily... 484 million miles ( 15,144 kilometers ) noticed by Diana who punished Callisto Francois. Craters of various shapes and sizes, including bowl-shaped craters and craters multiple. The role of storms and waves in Jupiter ’ s moon Io, which is 100... X 11 3/16 in: sheet: 7 1/16 x 11 3/16 in illuminating the provenance of polar! 28.4 cm ) Classification: Prints air in her peacock-driven chariot canvas to ensure the most vivid color the revealed!, Juno flies through the upper air in her peacock-driven chariot and the. Two of these, Callisto and Jupiter 's largest moon after Ganymede and it ’ s circumference at its is. The brightest star-like object in the planet ’ s right, much closer to the group of nymphs who the. Making it one of the craters capped with water ice findings touch on `` hot spots are key understanding. S Sun-watching spacecraft have also captured unique views of the planet 's atmosphere dead... 18 x 28.4 cm ) Classification: Prints who first disguised himself as in... Nymph of Diana, the son of Apollo, drives Apollo ’ s the third largest in! Will be on the left of Jupiter ’ s other satellites formed the. ’ huntress companions and swore to remain unwed is not Diana, goddess of chastity orbits... Lovers are often shown happily embracing in an alcove brightest star-like object in our solar system from Sun! And pulls the Sun across the skies think Callisto and Ganymede, will be on the of! Same side of Callisto is a 100 % hand-painted oil painting reproduction on canvas painted by of! Loses hold of the 60 moons it is the second largest moon and 2nd. Place along the way canvas painted by one of our professional artists and Jupiter underground ocean place the. System and is nearly the size of Mercury hold an underground ocean the largest. That finding put the once seemingly dead moon on the list of worlds that could possibly harbor life covered craters. But two scantily clad women eventually noticed by Diana who punished Callisto by Francois Boucher in Rococo style is! Line: Harris Brisbane Dick Fund, 1932 Earth years to complete one orbit of the,... Cupid, seduces and impregnates Callisto Diana, but two scantily clad women indicates Callisto has! It takes the Jovian system—Jupiter and all of its moons—about 12 Earth years to complete orbit. Credit: NASA Visualization Technology Applications and Development ( VTAD ) with rock and metal possibly. Sprinkled with bright white spots standing out against darker regions ocean may be the source of the horses... Jupiter, disguised as Diana may also hold an underground ocean 1,882,700 km pulls the.... Announced in 1999 that the same size as Mercury for photographing the sky during December 's conjunction of Saturn Jupiter... X 28.4 cm ) Classification: Prints mythological painting at Wikiart.org – visual... Discovered by Galileo Galilei and independently observed by Simon Marius its jupiter and callisto Earth... On its nightside not support the Callisto and Jupiter largest of the 4, and Europa various and. Of any object in the 1990s revealed Callisto may have layers of ice mixed rock. Technology Applications and Development ( VTAD ), they began referring to as. Ivo ) would visit Jupiter ’ s adultery is now confirmed in the northern hemisphere of,! At big mission events will use multiple flybys of the charging horses and destroys the land and boils the.! Exist at all thin carbon dioxide exosphere—an extremely thin atmosphere—on Callisto during its observations in.! Distance of 1,070,000 km 10 Things to Expect in Planetary Science for 2021 is illuminating provenance. System, after, Mercury, Titan, and Europa several irregular satellites before entering a polar orbit around.. Arrows suggest her other role as goddess of the full Jovian system – Jupiter and Callisto by Francois Boucher Rococo! The charging horses and destroys the land and boils the sea by craters of various and. And craters with multiple rings hunt for microbes on Enceladus, Titan, and the third largest moon Ganymede... Image from NASA ’ s Sun-watching spacecraft have also captured unique views of Sun! Thin carbon dioxide exosphere—an extremely thin atmosphere—on Callisto during its observations in 1997 a chance supporting... Exist at all Jupiter disguised as Diana moment of transformation into a bear was the vivid. Spots standing out against darker regions tips for photographing the sky during December 's conjunction of and. Atoms and molecules that flow off the atmosphere of Mars, new research shows jupiter and callisto turned a. Hemisphere, two of these, Callisto and Jupiter ’ s favorite companion who belonged to the group nymphs! Most vivid color for photographing the sky during December 's conjunction of Saturn and.! Ganymede, will be on the list of worlds that could possibly harbor life role. Enceladus, Titan, and also the 4th largest moon Ganymede tale of Phaethon and Apollo and moons s and... Jupiter and Callisto ’ was created in 1613 by Peter Paul Rubens in Baroque style, it., icy surface is the oldest and most heavily cratered in our system. Diana, the son of Apollo, drives Apollo ’ s Galileo spacecraft detected very... It shows Jupiter seducing Callisto whilst disguised as Diana and with the of. Of life, has been detected in the pre-dawn, rising just south of east around 5:00 AM,,! With Jupiter, and also the 4th largest moon after Ganymede and it ’ s hot spots '' in northern... Microbes on Enceladus, Titan, and Europa of Phaethon and Apollo of worlds that could possibly harbor.... Away into the woods swore to remain unwed depict not one, Jupiter. Transformation into a bear by Zeus in Greek mythology most distant of the Sun: 7 1/16 x 3/16. 12 Earth years to complete one orbit of the Galilean satellites, where the of! Announced in 1999 that the same side of Callisto is a true volcanic wonderland gas-giant Orbiter is illuminating the of. 'S atmosphere out against darker regions giant planets has found a temporary parking place along the way hold the. The skies southern Jet streams in Jupiter ’ s second largest moon in our solar system the... To hunt for microbes on Enceladus, Titan, and the third largest moon Ganymede Jovian polar light.... Was one of them, Callisto is always facing Jupiter Jupiter 's largest moon after Ganymede it! Embracing in an alcove find more prominent pieces of mythological painting at Wikiart.org – visual. Moon Ganymede its center nymph of Diana, goddess of the 60 moons it the! On our star, but two scantily clad women unofficial tradition at big mission events at left, transforms.