Catalogue Search | MBRL
Are you sure you want to remove the book from the shelf?
{{itemTitle}}
6,645
result(s) for
"Neptune"
Sort by:
Do you really want to visit Neptune?
\"A child astronaut takes an imaginary trip to Neptune and the outer reaches of the solar system, learns about the harsh conditions on the planet, and decides that Earth is a good home after all. Includes solar system diagram, Neptune vs. Earth fact chart, and glossary\"--Provided by publisher.
Book
Neptune
Introduces Neptune, the farthest planet from the Sun, describing its orbit, rings, moons, and the gases that make up its surface.
Book
Uranus and Neptune: Origin, Evolution and Internal Structure
There are still many open questions regarding the nature of Uranus and Neptune, the outermost planets in the Solar System. In this review we summarize the current-knowledge about Uranus and Neptune with a focus on their composition and internal structure, formation including potential subsequent giant impacts, and thermal evolution. We present key open questions and discuss the uncertainty in the internal structures of the planets due to the possibility of non-adiabatic and inhomogeneous interiors. We also provide the reasoning for improved observational constraints on their fundamental physical parameters such as their gravitational and magnetic fields, rotation rates, and deep atmospheric composition and temperature. Only this way will we be able to improve our understating of these planetary objects, and the many similar-sized objects orbiting other stars.
Journal Article
The seventh inner moon of Neptune
During its 1989 flyby, the Voyager 2 spacecraft imaged six small moons of Neptune, all with orbits well interior to that of the large, retrograde moon Triton
1
. Along with a set of nearby rings, these moons are probably younger than Neptune itself; they formed shortly after the capture of Triton and most of them have probably been fragmented multiple times by cometary impacts
1
–
3
. Here we report Hubble Space Telescope observations of a seventh inner moon, Hippocamp. It is smaller than the other six, with a mean radius of about 17 kilometres. We also observe Naiad, Neptune’s innermost moon, which was last seen in 1989, and provide astrometry, orbit determinations and size estimates for all the inner moons, using an analysis technique that involves distorting consecutive images to compensate for each moon’s orbital motion and that is potentially applicable to searches for other moons and exoplanets. Hippocamp orbits close to Proteus, the outermost and largest of these moons, and the orbital semimajor axes of the two moons differ by only ten per cent. Proteus has migrated outwards because of tidal interactions with Neptune. Our results suggest that Hippocamp is probably an ancient fragment of Proteus, providing further support for the hypothesis that the inner Neptune system has been shaped by numerous impacts.
Hubble Space Telescope observations of the seventh inner moon of Neptune, Hippocamp, show that it is smaller than the other six, orbits near Proteus and probably originates from a fragment of Proteus.
Journal Article
Far-out guide to Neptune
\"Information about Neptune, including fast facts, history, and technology used to study the planet\"--Provided by publisher.
Book
Uranus and Neptune
\"The most distant planets in our solar system, Uranus and Neptune were unknown by the ancients - Uranus was discovered in the 1780s and Neptune only in the 1840s. Our discovery and observation of both planets has been hampered by their sheer distance from Earth: there has only been one close encounter, Voyager 2 in the late 1980s. The Voyager mission revealed many enticing details about the planets and their moons, but also left many more questions unanswered. This book is an informative and accessible introduction to Uranus, Neptune and their moons. It takes the reader on a journey from discovery to the most recent observations made from space- and ground-based telescopes, and will appeal to amateur and professional astronomers alike\"--Publisher's description.
Book