61 Cygni was a binary star system consisting of the stars 61 Cygni A and 61 Cygni B. The planet's atmosphere composes mostly of hydrogen and helium with trace amounts of methane. It has the seventh highest proper motion of all stellar systems listed in the modern Hipparcos Catalogue. 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. As such, the … 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 planet takes 3.13 days or 75.2 hours to rotate once on its axis. The surface temp is −74°F, which is Mars-like. Smaller and dimmer than Sol… 6 ships passed through 61 Cygni space in the last 24 hours. 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. The wikipedia:en:61 Cygni binary star system comprises 61 Cygni A, also referred to as Swan, and a partner of unknown nickname but known formally as 61 Cygni B.The system was named on Earth as part of the constellation Cygnus the swan, of which (from that and similar vantage points) it appears to be a dim member. It takes 26.8 days to rotate once, which is roughly 80% of its year of 331⁄2 days. However, the maximum eccentricity during this long-term cycle is as high as 0.25, reached 260,000 years ago. Scott MacNeill / Frosty Drew Observatory. 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. It is a barren planet, meaning it has a bare, rocky surface. And it was the first star to have its distance accurately measured. This dramatic variation would cause great deal of seasonal climate changes on this planet. 51 Cygni is a Main Sequence Star type star. An average surface temp is 155°F and the planet reflects 28% of the incoming starlight falling onto it. 61 CYG (61 Cygni). 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. This system was located approximately eleven light years from the Sol system, part of the constellation Cygnus . 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. It is a Neptune-mass planet, massing 14.6 Earth masses and has diameter of 57.8 megameters. 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°. Revelation Space Wiki is a FANDOM Books Community. https://planetstar.fandom.com/wiki/61_Cygni_system?oldid=10788. 61 Cygni B is a star system. 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 Cygni is also called Gl 820, very rarely called Bessel's Star, and informally Proxima Cygni. 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. 61 Cyg Ac has mass 22 Earth masses and diameter 64.3 megameters, producing the density slightly less than water. The planet has mass 5.4 times that of Earth's, that's why this planet is a super-Earth. 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. 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. Unlike other planets in this binary system, this one orbits in a circular path with an eccentricity of only 0.005. 19 Cygni is a variable and multiple giant star in the constellation of Cygnus. PlanetStar Wiki is a FANDOM Lifestyle Community. The system is in Cygnus, the swan. The planet's composition and structure is similar to 61 Cyg Ab. 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. The planet Tellar Prime and its moon Scott are both located in this system. Its density is similar to two other planets, so do their structural properties. More typical Milky Way stars shift by mere ten-thousandths of an arcsecond—just hundredths of a pixel in a modern telescope camera. 61 Cygni had claims of a planetary system on several occasions. 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: Sky's Edge (formerly Journey's End), the final destination for humanity's first human-crewed interstellar colonization effort, revolved around Swan. The primary (A) is a cool K5 main sequence star that is suspected to be variable (from 5.19 to 5.27 magnitude). 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. The planet's surface contains few bodies of water in the form of lakes that often steam. Three of four planets orbiting B are rocky, all are super-Earths, and one is an ice giant midplanet. 61 Cygni is a binary star visible in large binoculars or a small amateur telescope. 61 Cygni Bc is a super-Earth, massing 31⁄4 times more massive than Earth. 61 Cygni (also known as the Tellar system) is a binary star system, location of the planet Tellar. Cygnus holds a seminal star, one not much appreciated within the classical figure that makes the celestial Swan and its famed asterism, the Northern Cross (the Swan tipped upside-down). 10182 ships passed through 61 Cygni space, including 70 ships in the last 7 days. With an average visual… Read More » Deneb Breakdown: Anaconda - 1 It's year lasts 30 weeks, compared to approximately 52 weeks for Earth. 18-19) establishes that system as the location of Tellar. 61 Cygni, Union Star System : Bessel's Twins aka Bessel's Star Piazzi's Flying Star A binary star system in the constellation Cygnus. New Earth; Terra 10; External link. No others have eccentricities below 0.25. It masses 39.65 Earth masses or 2⁄5 the mass of Saturn. 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. Due to the planet's closeness of the nearby star, it's rotation is slow due to tidal forces of the star. 61 Cygni Bb is a super-Earth orbiting at 18% of the distance between Earth and Sun. 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 … 61 Cygni comprises of two stars, both are K-type considerably smaller, cooler and dimmer than our Sun. Nearby star system containing two orange dwarves. It has a diameter of 23.55 Mm, which is 85% bigger than Earth. Its eccentricity is close to the average among all the planets in this binary system. It is a Neptune-mass planet, massing 14.6 Earth masses and has diameter of 57.8 megameters. However, the Star Trek: Star Charts (pp. first human-crewed interstellar colonization effort, https://revelationspace.fandom.com/wiki/61_Cygni_system?oldid=6900. This density value tell that this planet has a thick hydrogen-helium atmosphere surrounding the oceans of liquid water/ammonia mixture. 61 Cygni Bd is twice as massive as Earth at 2.02 Earth masses, straddling the border between super-Earth and mid-Earth. The distance varies from 0.45 to 0.77 AU for an eccentricity of 0.258. 61 Cygni Ad is the outermost of the three planets around 61 Cygni's primary star. Take your favorite fandoms with you and never miss a beat. 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 Psi Cygni is a binary star visible in small amateur telescopes, with two white components. The great distance between them means that the effects of heat and light on the planets orbiting each star are negligible. 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 equilibrium temp is −140°F. The primary is of magnitude 5.0 and the secondary is of magnitude 7.5. Take your favorite fandoms with you and never miss a beat. It takes 17 hours to revolve around the axis once and has similar gravitational pull to Earth. In 1977, Soviet astronomers suggested that this system contains three superjovian planets, two orbiting 61 Cygni A and one orbiting 61 Cygni B. 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 diameter of this planet is 69.5 megameters, which is 4⁄7 the size of Jupiter. Located at coordinates 25.0, 60.1, 2.6, this system was considered one of the four core systems of the Federation even in the 24th century. The 61 Cygni system is a Terran Federation controlled system. It moves across the sky faster than all but about a half-dozen other stars. Because the stars are so far apart, they take many years to orbit each other – perhaps as many as 700 years. But the surface is not like Mars, it has numerous lakes and rivers of liquid ammonia. However, its high eccentricity would cause separation to vary from 44 to 124 AU. This multiple star system is among the most interesting in the sky. In 1838, Friedrich Bessel calculated the distance as 10.4 light-years, close to the modern figure. Like these other planets, this one has a very eccentric orbit, halfway between the eccentricities of other planets in value. An average eccentricity is 0.367, six times the average value of the Solar System's eccentricity. 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