millions of years to come from the Oort cloud at a distance of roughly 50,000 AU (0.8 ly). The heliocentric orbital eccentricity drops below 1 in December...
14 KB (1,285 words) - 07:31, 14 June 2024
star with a temperature of 190 K, and it extends outward to as much as 50,000 AU where the temperature drops to 40 K. This optically thin dust is not related...
10 KB (800 words) - 20:11, 22 August 2024
than a sudden drop in the amount of comets orbiting the sun at about 50,000 AU, the Oort cloud rather uniformly decreases in size, the further away from...
1 KB (189 words) - 13:45, 26 March 2024
is only a very distant small Solar System body, approaching as far as 50,000 AU from the Sun, around the distance of the Oort Cloud. It had an orbital...
9 KB (526 words) - 21:02, 14 January 2024
Oort cloud, a cloud of comets orbiting the Sun from ~10,000 to roughly 50,000 AU. The actual orbit of these comets significantly differs from the provided...
87 KB (168 words) - 09:00, 31 August 2024
between 2,000 and 5,000 AU (0.03 and 0.08 ly) from the Sun to as far out as 50,000 AU (0.79 ly) or even 100,000 to 200,000 AU (1.58 to 3.16 ly). The region...
56 KB (6,186 words) - 00:27, 5 September 2024
hypothetical cloud of comets with a mean orbital radius between approximately 50,000 AU and 100,000 AU. No Oort-cloud objects have been detected; the existence...
18 KB (2,407 words) - 08:01, 18 July 2024
well within the Oort cloud, whose boundary is estimated to be beyond 50,000 AU. It would have an orbital period of roughly 1.8 million years. A failed...
16 KB (1,605 words) - 22:10, 13 August 2024
imaging technology. It is theorized to surround the Solar System at roughly 50,000 AU (~0.9 ly) from the Sun and possibly to as far as 100,000 AU (~1.8 ly)...
222 KB (21,916 words) - 18:42, 23 September 2024
thought to be the source of long-period comets and that may extend to 50,000 AU from the Sun. All astronomical bodies in the Solar System need a distinct...
36 KB (4,218 words) - 01:33, 27 July 2024
20,000 AU in size. In contrast, the Oort cloud is between 20,000 and 50,000 AU (0.3 and 0.8 ly) in size. The mass of the Hills cloud is not known. Some...
22 KB (2,592 words) - 01:43, 18 July 2024
Oort cloud theory states that the Oort cloud, a sphere measuring about 50,000 AU (0.24 pc) in radius, formed at the same time as the solar nebula and occasionally...
40 KB (4,411 words) - 22:19, 21 September 2024
starting from between 2,000 and 5,000 AU (0.03 and 0.08 ly) to as far as 50,000 AU (0.79 ly) from the Sun. This cloud encases the celestial bodies that start...
144 KB (15,283 words) - 11:44, 24 September 2024
stars. The maximum extent of that influence has been estimated at between 50,000 AU and 2 light-years, compared to the heliopause (the outer boundary of the...
55 KB (6,593 words) - 20:25, 8 September 2024
closest well-measured approach was Scholz's Star, which approached to ~50,000 AU of the Sun some ~70 thousands years ago, likely passing through the outer...
170 KB (19,226 words) - 01:37, 20 September 2024
white main sequence star of magnitude 9.90 and spectral type A2, some 50,000 AU away, that may or may not be gravitationally bound to the other two. X...
45 KB (5,209 words) - 14:23, 17 August 2024
disc extends to over 100 AU, and the distant Oort cloud begins at about 50,000 AU. According to this scenario the Kuiper belt was originally much denser...
40 KB (5,112 words) - 16:54, 5 September 2024
originated in the Oort cloud, a sphere of cometary bodies around 20,000–50,000 au from the Sun. Conversely the Jupiter-family comets are generally believed...
110 KB (11,078 words) - 21:06, 19 September 2024
the Oort cloud, possibly a spherical swarm of comets extending beyond 50,000 AU from the Sun first hypothesised by Dutch astronomer Jan Oort in 1950....
118 KB (13,220 words) - 04:41, 29 July 2024
000 AU = half-light-year diameter of Bok globule Barnard 68 7.5 Pm – 50,000 AU – possible outer boundary of Oort cloud (other estimates are 75,000 to...
182 KB (17,343 words) - 20:49, 26 September 2024
plague of 1830; but in 1853 Mr Layard estimated its population under 50,000. Au estimate made in 1872 on a census taken in 1809 rises as high as 150,000
star, and are more than half the region boundary from any star (i.e. >50,000 AU in the case of the Sun) are counted as interstellar. Otherwise they are