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HD 88133 is an 8th magnitude star in the constellation of Leo. It is classified as a yellow main sequence star. It is slightly more massive than the Sun, cooler and more luminous. Located at a distance of 241 light years from Earth it is not in our immediate neighbourhood and thus not visible to the unaided eye. With a small telescope it should be easily visible.
HD 125612 is a binary star system with three exoplanetary companions in the equatorial constellation of Virgo. It is too dim to be visible to the naked eye, having an apparent visual magnitude of 8.31. The system is located at a distance of 188 light years from the Sun based on parallax measurements, but it is drifting closer with a radial velocity of −18 km/s.
HD 11506 is a star in the equatorial constellation of Cetus. It has a yellow hue and can be viewed with a small telescope but is too faint to be visible to the naked eye, having an apparent visual magnitude of 7.51. The distance to this object is 167 light years based on parallax, but it is drifting closer to the Sun with a radial velocity of −7.5 km/s. It has an absolute magnitude of 3.94.
HD 11506 b is an extrasolar planet that orbits the star HD 11506 167 light years away in the constellation of Cetus. This planet was discovered in 2007 by the N2K Consortium using the Keck telescope to detect the radial velocity variation of the star caused by the planet. A second planet, HD 11506 c, was discovered in 2015.
HD 5319 is an 8th magnitude star approximately 319 light years away in the constellation Cetus. It is a subgiant star of spectral type K3, having run out of hydrogen in its core. When it was main-sequence, the spectral type was early F or late A.
HD 75898 is an 8th magnitude star approximately 255 light years away in the constellation Lynx. The star is 28% more massive, 60% larger, and 3 times as luminous than our local star. It is a metal-rich star, with 186% the solar abundance of iron. In 2007 the California and Carnegie Planet Search team found one planet orbiting HD 75898.
HD 37605 is a star in the equatorial constellation of Orion. It is orange in hue but is too faint to be visible to the naked eye, having an apparent visual magnitude of 8.67. Parallax measurements yield a distance estimate of 153 light years from the Sun. It has a high proper motion and is drifting closer with a radial velocity of −22 km/s.
HD 109749 is a binary star about 206 light years away in the constellation of Centaurus.
HD 149143, formally named Rosalíadecastro, is a star located in the Ophiuchus constellation that has spectral type of G0 located at a distance of 240 light-years from us. Its apparent magnitude is 7.9 and the absolute magnitude is 3.9.
HD 88133 b is an extrasolar planet orbiting the star HD 88133. It is probably less massive than Jupiter and even Saturn. It orbits the star in a very tight orbit, completing one revolution around the star in every three and half days or so. Despite the relatively large radius of the star, no transits have been detected.
HIP 14810 b is a massive hot Jupiter approximately 165 light-years away in the constellation of Aries. It has mass 3.88 times that of Jupiter and orbits at 0.0692 AU. It was discovered by the N2K Consortium in 2006 and the discovery paper was published in 2007. Prior to this a preliminary orbit had been published in the Catalog of Nearby Exoplanets.
HIP 14810 c is an extrasolar planet approximately 165 light-years away in the constellation of Aries. This planet has mass at least 1.28 times that of Jupiter and orbits at 0.545 AU in an eccentric orbit. The planet was discovered by the N2K Consortium in 2006 and announced in a paper published in 2007. With the discovery of a third planet in the system which was announced in 2009, the parameters of this planet were revised.
HD 224693 b, also named Xólotl, is an extrasolar planet orbiting the star HD 224693 every 27 days with a minimum mass 70% of Jupiter.
HD 33283 b is an exoplanet orbiting around HD 33283. The mass of the planet is about 1/3 that of Jupiter or about the same as Saturn. However, the planet orbits very close to the star, taking only 18 days to complete its orbit with average speed of 86.5 km/s (311400 km/h). Despite this, its orbit is eccentric, bringing it as close as 0.075 AU to the star and as far away as 0.215 AU.
HD 109749 b is an extrasolar planet that orbits extremely close to the star HD 109749, taking only 5.24 days to orbit at the distance of 0.063 AU. This planet was discovered on August 22, 2005 - the same day as the discovery of Gliese 581 b.
HD 231701 b is an extrasolar planet approximately 356 light years away in the constellation of Sagitta. This planet orbits at 0.55 AU from the star HD 231701 with eccentricity 0.19. Based on its high mass of 1.08 MJ, the planet is probably a gas giant, meaning the planet has no solid surface and have composition similar to Solar System's outer planets.
HD 11506 c is an extrasolar planet located approximately 167 light years away in the constellation of Cetus, orbiting the 8th magnitude G-type main sequence star HD 11506. It is the second planet in this system, and its discovery was first claimed in 2009 by using Bayesian analysis on data previously collected by the N2K Consortium. However, in 2015 additional radial velocity measurements showed that the planetary parameters were significantly different from those determined by Bayesian analysis.
HIP 14810 d is an extrasolar planet approximately 165 light-years away in the constellation of Aries. This planet has mass at least 0.57 times that of Jupiter and orbits at 1.89 AU in an eccentric orbit.
HD 16760 is a binary star system approximately 227 light-years away in the constellation Perseus. The primary star HD 16760 is a G-type main sequence star similar to the Sun. The secondary, HIP 12635 is 1.521 magnitudes fainter and located at a separation of 14.6 arcseconds from the primary, corresponding to a physical separation of at least 660 AU. Announced in July 2009, HD 16760 has been confirmed to have a red dwarf orbiting it, formerly thought to be a brown dwarf or exoplanet.
HD 179079 b is an extrasolar planet which orbits the G-type subgiant star HD 179079, located approximately 228 light years away in the constellation Aquila. This planet has mass only 1/12 that of Jupiter or 1.5 times Neptune. The planet orbits very close to the star, at a distance of 0.11 AU. This planet takes two weeks to revolve around the star. This planet was discovered using the Keck telescopes on August 12, 2009.
References
- 1 2 Robinson, Sarah E.; et al. (2007). "Two Jovian-Mass Planets in Earthlike Orbits". The Astrophysical Journal. 670 (2): 1391–1400. arXiv: 0708.0832 . Bibcode:2007ApJ...670.1391R. doi:10.1086/522106. S2CID 14454598.
- 1 2 3 4 5 Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv: 1809.01228 . Bibcode:2018AJ....156..213M. doi: 10.3847/1538-3881/aae1f5 . S2CID 119243619.
- ↑ Giguere, Matthew J.; et al. (2015). "Newly Discovered Planets Orbiting HD 5319, HD 11506, HD 75784 and HD 10442 from the N2K Consortium". The Astrophysical Journal. 799 (1). 89. arXiv: 1411.5374 . Bibcode:2015ApJ...799...89G. doi:10.1088/0004-637X/799/1/89. S2CID 56121568.
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