Definitions for planets
plan·ets

WikipediaRate this definition:0.0 / 0 votes

1. planets

   A planet is a large, rounded astronomical body that is neither a star nor its remnant. The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a young protostar orbited by a protoplanetary disk. Planets grow in this disk by the gradual accumulation of material driven by gravity, a process called accretion. The Solar System has at least eight planets: the terrestrial planets Mercury, Venus, Earth and Mars, and the giant planets Jupiter, Saturn, Uranus and Neptune. These planets each rotate around an axis tilted with respect to its orbital pole. All of them possess an atmosphere, although that of Mercury is tenuous, and some share such features as ice caps, seasons, volcanism, hurricanes, tectonics, and even hydrology. Apart from Venus and Mars, the Solar System planets generate magnetic fields, and all except Venus and Mercury have natural satellites. The giant planets bear planetary rings, the most prominent being those of Saturn. The word planet probably comes from the Greek planḗtai, meaning "wanderers". In antiquity, this word referred to the Sun, Moon, and five points of light visible by the naked eye that moved across the background of the stars—namely, Mercury, Venus, Mars, Jupiter and Saturn. Planets have historically had religious associations: multiple cultures identified celestial bodies with gods, and these connections with mythology and folklore persist in the schemes for naming newly discovered Solar System bodies. Earth itself was recognized as a planet when heliocentrism supplanted geocentrism during the 16th and 17th centuries. With the development of the telescope, the meaning of planet broadened to include objects only visible with assistance: the ice giants Uranus and Neptune; Ceres and other bodies later recognized to be part of the asteroid belt; and Pluto, later found to be the largest member of the collection of icy bodies known as the Kuiper belt. The discovery of other large objects in the Kuiper belt, particularly Eris, spurred debate about how exactly to define a planet. The International Astronomical Union (IAU) adopted a standard by which the four terrestrials and four giants qualify, placing Ceres, Pluto and Eris in the category of dwarf planet, although many planetary scientists have continued to apply the term planet more broadly.Further advances in astronomy led to the discovery of over five thousand planets outside the Solar System, termed exoplanets. These include hot Jupiters—giant planets that orbit close to their parent stars—like 51 Pegasi b, super-Earths like Gliese 581c that have masses in between that of Earth and Neptune; and planets smaller than Earth, like Kepler-20e. Multiple exoplanets have been found to orbit in the habitable zones of their stars, but Earth remains the only planet known to support life.

WikidataRate this definition:0.0 / 0 votes

1. Planets

   Planets is Adema's third album. This was the band's first and only album with Luke Carracioli, who left the band on October 25, 2005, citing "personal differences". The album was released by Earache Records on April 5, 2005. It obtained a peak position of 152 on the Billboard 200 before falling off. The album featured three singles: "Tornado", "Shoot the Arrows", and the self-titled track "Planets"; the single "Planets" was featured in the movie Cry Wolf. Planets is the first Adema album not to feature the Explicit Content sticker on its case.

The Nuttall EncyclopediaRate this definition:0.0 / 0 votes

1. Planets

   bodies resembling the earth and of different sizes, which revolve in elliptical orbits round the sun, and at different distances, the chief of them eight in number, two of them, viz., Mercury and Venus, revolving in orbits interior to that of the earth, and five of them, viz., Mars, Jupiter, Saturn, Uranus, and Neptune, exterior, the whole with the planetoids (q. v.) and comets constituting the solar system.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Planets

   Heavenly bodies with their own motion among the stars, revolving, in the case of the solar system, around the sun, along the plane of the ecliptic. They are grouped into inner planets and outer planets, based on distance from the sun and common characteristics.

Editors ContributionRate this definition:0.0 / 0 votes

1. planetsnoun

   Plural noun of planet.

   There are a known number of planets in our solar system and many more we will discover when we need it.

   
   

   Submitted by MaryC on March 8, 2016  

Anagrams for planets »

1. planest

2. platens

How to pronounce planets?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say planets in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of planets in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of planets in Pythagorean Numerology is: 6

Examples of planets in a Sentence

1. Scott Sheppard:

   Most objects that we know of interact with the planets in some way so the orbits have been disturbed over the past few billion years, whereas this object is so distant that it may not have been disturbed by planets. So its orbit is a pristine orbit from the formation of the original solar system. If we can get its orbit and understand how it formed and how it got there, it will tell us a lot about the formation of our solar system.

2. Martin Cordiner:

   The diffuse ISM can be considered as the starting point for the chemical processes that ultimately give rise to planets and life, so fully identifying its contents provides information on the ingredients available to create stars and planets.

3. Paul Hertz:

   TESS was designed and launched specifically to find Earth-sized planets orbiting nearby stars, planets around nearby stars are easiest to follow-up with larger telescopes in space and on Earth. Discovering TOI 700 d is a key science finding for TESS. Confirming the planets size and habitable zone status with Spitzer is another win for Spitzer as it approaches the end of science operations this January.

4. Nick Lane:

   Space missions have found evidence that icy moons of Jupiter and Saturn might also have similarly alkaline hydrothermal vents in their seas, while we have never seen any evidence of life on those moons, if we want to find life on other planets or moons, studies like ours can help us decide where to look.

5. Nausheen Rupani:

   On their way to school every day, she and her dad would pretend they were in a spaceship. They would imagine seeing planets( buildings), stars( traffic lights), etc. on their way and give them names.

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References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Planets
2. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=planets
3. ^ The Nuttall Encyclopedia
   https://www.gutenberg.org/cache/epub/12342/pg12342-images.html#Planets