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Due to their volatile-rich (icy) composition, C-type asteroids have relatively low density. A survey of 20 C-type asteroids found an average density of 1.7 g/cm 3. [4] The largest unequivocally C-type asteroid is 10 Hygiea, although the SMASS classification places the largest asteroid, 1 Ceres, here as well, because that scheme lacks a G-type.
The asteroid Toutatis is listed as a potentially hazardous near-Earth asteroid, yet poses no immediate threat to Earth.(Radar image taken by GDSCC in 1996.)A potentially hazardous object (PHO) is a near-Earth object – either an asteroid or a comet – with an orbit that can make close approaches to the Earth and which is large enough to cause significant regional damage in the event of ...
However, it is not exceptional for red supergiants, which are believed to show additional extinction due to circumstellar dust near the star. [7] Analysis of the proper motion of HV 2112 in 2016 reported that it is unusually large for an SMC star, although the radial velocity is consistent with other SMC objects. The proper motion of around 10 ...
Each has been found to have planets. HR 858 is a near naked eye visible star in Fornax, 31.3 parsecs away. In May 2019, it was announced to have at least 3 exoplanets as observed by transit method of the Transiting Exoplanet Survey Satellite.
USS Princeton (CG-59) is a Ticonderoga-class guided missile cruiser serving in the United States Navy.Armed with naval guns and anti-air, anti-surface, and anti-submarine missiles, plus other weapons, she is equipped for surface-to-air, surface-to-surface, and anti-submarine warfare.
The swamp rabbit was first described in 1874 by John Bachman as Lepus aquaticus, having a type locality of "western Alabama". [5]Two subspecies are recognized: Sylvilagus aquaticus aquaticus, the nominate subspecies that occupies most of the swamp rabbit's recognized distribution, and Sylvilagus aquaticus littoralis, which is found only in a narrow band of marshes in Mississippi, Louisiana ...
Word and Object is a 1960 work by the philosopher Willard Van Orman Quine, in which the author expands upon the line of thought of his earlier writings in From a Logical Point of View (1953), and reformulates some of his earlier arguments, such as his attack in "Two Dogmas of Empiricism" on the analytic–synthetic distinction. [1]