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ROXs 42Bb is a directly imaged planetary-mass companion [1] to the binary M star ROXs 42B, [4] a likely member of the Rho Ophiuchi cloud complex. The companion was announced/discovered on October 17, 2013, by University of Toronto astronomer Thayne Currie .
The planet is calculated to have an accretion rate up to 10 −8 M ☉ per year assuming a planetary mass of 15 M Jup, which would correspond to a planetary radius of 0.13 R ☉ based on evolutionary tracks. [18] Thus, HD 100546 c is either in a relatively quiescent stage or its growth from accretion is at a low level or has already ceased. [18]
The sizes are listed in units of Jupiter radii (R J, 71 492 km).This list is designed to include all planets that are larger than 1.6 times the size of Jupiter.Some well-known planets that are smaller than 1.6 R J (17.93 R 🜨 or 114 387.2 km) have been included for the sake of comparison.
On this Valentine's Day, here is a story of 94-year-old Don Barnett and his 93-year-old wife Marilyn, who have kept their love alive for 68 years with a musical elixir. Married nearly 7 decades ...
Kepler-36b and c have semi-major axes of 0.1153 AU and 0.1283 AU, respectively; hence the planet c is 1.11 times further from star than b. There have been unconfirmed detections of co-orbital pairs of exoplanet, each of which has a semi-major axis ratio of almost 1. Largest semi-major axis ratio between consecutive planets HD 83443 b and HD 83443 c
The Golden Bachelorette Joan Vassos is thoroughly enjoying her post-show life with fiancé Chock Chapple!As fans know, beautiful blonde Joan instantly clicked with insurance executive Chock, and ...
Comparison: the Sun (yellow), a young sub-brown dwarf (red), and Jupiter (multi-colored). As the sub-brown dwarf ages, it will gradually cool and shrink. A sub-brown dwarf or planetary-mass brown dwarf is an astronomical object that formed in the same manner as stars and brown dwarfs (i.e. through the collapse of a gas cloud) but that has a planetary mass, therefore by definition below the ...
Typical configuration of circumbinary planetary systems (not to scale), in which A and B are the primary and secondary star, while ABb denotes the circumbinary planet An artist's impression of the giant planet orbiting the binary system PSR B1620-26, which contains a pulsar and a white dwarf star and is located in the globular cluster M4