It takes 17 hours to revolve around the axis once and has similar gravitational pull to Earth. The atmosphere is comprised mostly of nitrogen with varying amounts of ammonia. Sometimes, lakes and rivers would be dried up as liquid ammonia boiled away, while at other times, lakes and rivers would be frozen and the surface would be covered in ammonia snow. It is an ocean planet with oceans over 200 miles deep, surrounded by atmosphere of adequate thickness made of hydrogen, oxygen, and water vapor. However, its high eccentricity would cause separation to vary from 44 to 124 AU. Because the stars are so far apart, they take many years to orbit each other – perhaps as many as 700 years. List of Planets [edit | edit source] 61 Cygni B I (Lanthanide World) 61 Cygni B II (Chondrite World) Bech (Organic World) Andreas (Treasure World) 61 Cygni B III (Oolite World) 61 Cygni B IV (Urea World) 61 Cygni B V (Plutonic World) 61 Cygni B VI (Crimson World) 61 Cygni B … It is due to combined even forces exerted by three planets beyond it and gravity of the nearby star. 61 Cygni is a binary star system in the constellation Cygnus. The star system 61 Cygni has a couple of distinctions. It is now known that 61 Cygni A and B orbit each other at an "average" distance (semi-major axis) of 86.4 times the Earth-Sun distance, or about 86 astronomical units (AUs) -- which is The surface temp is −221°F, slightly colder than Saturn. 61 Cyg Be takes 25 hours and 50.4 minutes to rotate once on its axis and it rotates on its side at an axial tilt of 711⁄2°. It orbits at an average distance of 1.083 AU, but it varies drastically from 0.27 to 1.90 AU. It is the coldest planet since the planet orbits farther away from the parent star. Take your favorite fandoms with you and never miss a beat. 61 Cygni A hosts three rocky worlds, two gas giants, and a dense field of dust and large asteroids. New Earth; Terra 10; External link. 61 Cygni Bb is a super-Earth orbiting at 18% of the distance between Earth and Sun. In 2364, the location of 61 Cygni was labeled in a star chart of the stellar neighborhood with Sol at the center. 61 Cyg Ad has more mass than two other planets combined. 10182 ships passed through 61 Cygni space, including 70 ships in the last 7 days. The planet Tellar Prime and its moon Scott are both located in this system. Of apparent magnitude 5.20 and 6.05 respectively, they can be seen with binoculars in city skies or with the naked eye in … 61 Cygni was a binary star system consisting of the stars 61 Cygni A and 61 Cygni B. Double Star designated 61 in Cygnus the Swan Claim to Fame: Some of the closest stars to the sun(13th closest). But the surface is not like Mars, it has numerous lakes and rivers of liquid ammonia. This planet is 2.2 times bigger than Earth and volume 102⁄3 times that of Earth. Things came to a head in the late 1830s, when three astronomers zeroed in on different stars, spending many nights at their telescope, often under harsh conditions. With an eccentricity of 0.47, which is the same as orbits of binary stars in this system, the distance varies from 0.46 to 1.29 AU. All three planets orbiting A are gaseous, two are midplanets and one is a low-mass sub-Jupiter. 19 Cygni is a variable and multiple giant star in the constellation of Cygnus. No others have eccentricities below 0.25. 61 Cygni, Union Star System : Bessel's Twins aka Bessel's Star Piazzi's Flying Star A binary star system in the constellation Cygnus. first human-crewed interstellar colonization effort, https://revelationspace.fandom.com/wiki/61_Cygni_system?oldid=6900. 61 Cygni B is a star system. This density value tell that this planet has a thick hydrogen-helium atmosphere surrounding the oceans of liquid water/ammonia mixture. Moving very rapidly through space as seen from Earth at a rate of ~45,000 miles per hour (72,000 km/hr) Type of Star: Orange-red Main Sequence (Spectral Class K3.5 and K4) How Far Away: 11.3 light years How Big: PlanetStar Wiki is a FANDOM Lifestyle Community. This dramatic variation would cause great deal of seasonal climate changes on this planet. This difference is due to planet's powerful greenhouse effect. It's surface temp is 180°F and reflects 31% of all light reaching the planet. ; 51 Cygni is not part of the Cygnus constellation outline but is within the borders of the constellation. This multiple star system is among the most interesting in the sky. This super wide binary system is made up of two stars at 28 arcseconds of separation. The system also has a large proper motion due to its velocity of 108 km/s relative to our Solar System. Scott MacNeill / Frosty Drew Observatory. The planet has mass 5.4 times that of Earth's, that's why this planet is a super-Earth. The primary is of magnitude 5.0 and the secondary is of magnitude 7.5. The planet would appear green from space surrounded by few rings made of icy particles. Revelation Space Wiki is a FANDOM Books Community. It was once a business paradise for megacorps early in the First Federation, but is now a modest financial and media center while its major business activities have moved outward with the terragen frontier. Georg Wilhelm Struve(1793-1864) made the first measurements of the star as a binary system. Due to the planet's closeness of the nearby star, it's rotation is slow due to tidal forces of the star. The surface temperature is −26°F and rotation period is 21⁄7 days. More typical Milky Way stars shift by mere ten-thousandths of an arcsecond—just hundredths of a pixel in a modern telescope camera. It has a diameter of 23.55 Mm, which is 85% bigger than Earth. The diameter of this planet is 69.5 megameters, which is 4⁄7 the size of Jupiter. It has a density 17% higher than water, meaning that this planet is an ice giant like Uranus and Neptune. The planet's surface gravity is 6⁄7 of that of Earth's. 61 Cygni is a long-settled, independent Inner Sphere system notable today for possessing a massively populated planet, Trip. It has the seventh highest proper motion of all stellar systems listed in the modern Hipparcos Catalogue. Its planetary year lasts 67 stellar days. 61 Cyg Bc orbits at a semimajor axis of 0.61 AU, which is 3⁄5 of the semimajor axis of Earth. It's density is very similar to 61 Cyg Bb, and this planet has similar structure and composition to that planet, except the surface is not covered in oceans. At a density of 5.64 g/cm3, it is the densest planet of the 61 Cygni system, meaning the planet has similar structure to Earth. It moves across the sky faster than all but about a half-dozen other stars. The planet's density is just 6⁄7 of that of water and under 1⁄6 of that of Earth's, and half the density of Neptune. 61 Cygni B is orbited by two rocky worlds and one … An average surface temp is 155°F and the planet reflects 28% of the incoming starlight falling onto it. 61 Cygni was the first star system (other than the Sun) to have its distance to Earth successfully calculated by Friedrich Wilhelm Bessel (1784-1846) using trigonometric parallax and the diameter of the Earth's orbit around the Sun in 1838. Orbital eccentricities are quite high due to planets orbiting in the binary system. 61 Cyg Bd takes overs 38 hours to rotate once on its axis and has 28% stronger gravitational pull than Earth, meaning an average human would weigh about 192 pounds on this planet. High overhead on early fall evenings, in a busy region of the Milky Way near Deneb, is a rather ordinary double star. Although barely visual to the naked eye and appearing as a single star, 61 Cygni is actually a binary star, each which orbit around a common barycenter only every 659 years. Like these other planets, this one has a very eccentric orbit, halfway between the eccentricities of other planets in value. However, its equilibrium temp is −140°F. 61 Cygni Bd is twice as massive as Earth at 2.02 Earth masses, straddling the border between super-Earth and mid-Earth. The average distance of the pair from each other is 86 AUs, but the large orbital eccentricity of 0.48 means the stars approach as close as 44 AUs at periastron and are as far apart as 124 AUs at apastron during their mutual orbit. The distance varies from 0.45 to 0.77 AU for an eccentricity of 0.258. 61 Cygni is a binary star visible in large binoculars or a small amateur telescope. The planet's atmosphere composes mostly of hydrogen and helium with trace amounts of methane. In the newly released History of the Universe in 21 Stars (and 3 Imposters), the star 61 Cygni has been revealed to be the smoking gun in our understanding of the cosmos 2 We have updated our Terms & … The primary star, 61 Cygni A is 30% less massive than the Sun, has a spectral classification of K5 displaying a strong deep yellow / orange. The surface temp is −74°F, which is Mars-like. It is a midplanet massing nearly 20 Earth masses. 51 Cygni is a Main Sequence Star type star. It rains ammonia on this planet, analogous to water on Earth and methane on Titan. Star Pilots [Player] 30.2%: 8: 15.25 Ly: 43 minutes ago: BR Piscium ︎: Ross 775 for Equality: 49.5%: 8: 15.34 Ly: 3 hours ago: LHS 2459 ︎: Federal Privateers [Player] Green Party of WISE 1506+7027 61 Cygni … Due to this, it can alternatively be called "Bessel's Star." The description is based on the spectral class. This was the star with the highest proper motion known in the 1830s and dubbed as "The Flying Star" by Giuseppe Piazzi in 1792. 61 Cygni / ˈsɪɡnɪ / is a binary star system in the constellation Cygnus, consisting of a pair of K-type dwarf stars that orbit each other in a period of about 659 years. 61 Cygni Ab orbits at about 0.5 AU (5⁄9 the Earth–Sun distance), and takes half an Earth year to revolve around the star. While not the closest star to the sun (that honor goes to the Alpha Centauri system), 61 Cygni is just 11.4 light-years distant. And it was the first star to have its distance accurately measured. 61 Cyg Ac is in a 2:1 resonance with 61 Cyg Ab, which can destabilize the planet's orbit due to high eccentricity. It is a terrestrial planet with a low density, which is half that of Earth's and slightly less dense than our Moon. Three of four planets orbiting B are rocky, all are super-Earths, and one is an ice giant midplanet. 61 Cyg Bd takes 4⁄3 of a year or 493.6 days to revolve once around the star with an extremely high eccentricity of 0.754. 61 Cygni Be is a planet orbiting at 3.15 AU, taking 6.7 years to revolve with an eccentricity of 0.305. Sky's Edge (formerly Journey's End), the final destination for humanity's first human-crewed interstellar colonization effort, revolved around Swan. The stars have mass of 70% and 63% that of our Sun. This system was located approximately eleven light years from the Sol system, part of the constellation Cygnus . 61 Cygni Ad is the outermost of the three planets around 61 Cygni's primary star. 19 Cygni visual magnitude is 5.12. It masses 39.65 Earth masses or 2⁄5 the mass of Saturn. 61 Cygni Ac is a planet that takes 98% of an Earth year to orbit the star at a distance of 7⁄8 that of Earth's. This system was visited for the first time on EDSM by iFred [SecB]. Take your favorite fandoms with you and never miss a beat. 61 CYG (61 Cygni). It's year lasts 30 weeks, compared to approximately 52 weeks for Earth. 61 Cyg Ab has 7⁄10 of the Earth's surface gravity, meaning that an average adult person would weigh about 107 pounds when standing on this planet. 51 Cygni Facts. 61 Cygni is a variable and multiple main-sequence star in the constellation of Cygnus. According to Federation: The First 150 Years, the Terra Nova colony was located around the star 61 Cygni A, a real star 11.4 light years from Earth. 61 Cyg Ad orbits at 2.6 AU (half the distance between Jupiter and Sun) and takes five years to orbit once around the star. 19 Cygni. As it is typical of planets in the 61 Cyg system, this one orbits eccentrically, although it has one of the lower eccentricities of all planets. 6 ships passed through 61 Cygni space in the last 24 hours. 61 Cygni system is a conjectured planetary system of the binary star system 61 Cygni, located 11.4 light-years away in the constellation Cygnus in the caelregio Avis. However, the maximum eccentricity during this long-term cycle is as high as 0.25, reached 260,000 years ago. It is a barren planet, meaning it has a bare, rocky surface. The planet's atmosphere contains great deal of carbon dioxide, which is an important greenhouse gas. Because of its reltive faintness, 19 Cygni should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution. However, the Star Trek: Star Charts (pp. https://planetstar.fandom.com/wiki/61_Cygni_system?oldid=10788. It was Friedrich Wilhelm Bessel who won the race in 1838 by announcing that the distance to the double-star system 61 Cygni is 10.4 light years. It takes 26.8 days to rotate once, which is roughly 80% of its year of 331⁄2 days. This star, 61 Cygni, isn’t one of the brightest stars. ; Based on the spectral type (B2V) of the star, the star's colour is blue . 61 Cygni visual magnitude is 6.03. 61 CYGNI is a binary star system which consists of two orange-red dwarfs with highly elliptical orbits that separates them, on average, by 84 AUs. 61 Cygni Bc is a super-Earth, massing 31⁄4 times more massive than Earth. A year later, these claims were found to be spurious as sensitivities at the time can only go down to about 60 Jupiter masses. In 1977, Soviet astronomers suggested that this system contains three superjovian planets, two orbiting 61 Cygni A and one orbiting 61 Cygni B. The 61 Cygni system is a Terran Federation controlled system. 61 Cygni Ab orbits at about 0.5 AU (5⁄9 the Earth–Sun distance), and takes half an Earth year to revolve around the star. It is a Neptune-mass planet, massing 14.6 Earth masses and has diameter of 57.8 megameters. The planet's composition and structure is similar to 61 Cyg Ab. The 61 Cygni system is exceptionally close. A mere 11 light years distant, the stars of 61 Cygni are among our closest neighbors. It was Friedrich Wilhelm Bessel who won the race in 1838 by announcing that the distance to the double-star system 61 Cygni … Breakdown: Anaconda - 1 The system is in Cygnus, the swan. Its eccentricity is close to the average among all the planets in this binary system. 61 Cygni is also called Gl 820, very rarely called Bessel's Star, and informally Proxima Cygni. Deneb, Alpha Cygni (α Cyg), is a class A supergiant located at an approximate distance of 1,550 light years from Earth. 61 Cyg Ac has mass 22 Earth masses and diameter 64.3 megameters, producing the density slightly less than water. It was later determined that the object masses 8 Jupiters taking 4.8 years to orbit at 2.4 AU. Unlike other planets in this binary system, this one orbits in a circular path with an eccentricity of only 0.005. System 61 Cygni in Elite: Dangerous - Make the most profit from here! Its eccentricity is close to the average among all the planets in this binary system. These planets have semimajor axes ranging from 0.18 AU to 3.15 AU and have orbital periods from over a month to nearly seven years. The primary (A) is a cool K5 main sequence star that is suspected to be variable (from 5.19 to 5.27 magnitude). 51 Cygni is a B2V main sequence star based on the spectral type that was recorded in the Hipparcos star catalogue. The planet takes 3.13 days or 75.2 hours to rotate once on its axis. Because this planet orbits farther away from the parent star than 61 Cyg Ab, this planet is colder with the surface temp of −98°F. 61 Cygni (also known as the Tellar system) is a binary star system, location of the planet Tellar. The planet's surface contains few bodies of water in the form of lakes that often steam. An average eccentricity is 0.367, six times the average value of the Solar System's eccentricity. 61 Cygni is the first star other than our Sun to have its distance measured using the parallax. It orbits in a 5:1 resonance with 61 Cyg Ac and 10:1 resonance with 61 Cyg Ab, meaning every time when 61 Cyg Ad orbits the star, c orbits five times while b orbits 10 times. See also. There are speculated three planets around 61 Cygni A and four around 61 Cygni B. In 1838, Friedrich Bessel calculated the distance as 10.4 light-years, close to the modern figure. 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