Sentences with phrase «planetary satellites»

Starting from July 2015, the IAU, via its Public Naming of Planets and Planetary Satellites Working Group, will oversee the final stages of the contest, and will validate the winning names from the vote.

This constancy is a common feature of planetary satellites.

On 14 August 2013, the IAU issued a statement on the Public Naming of Planets and Planetary Satellites which outlined a first set of rules that allowed the public to become involved in naming exoplanets.

The largest of Jupiter's 39 moons and the largest moon in the solar system, Ganymede is the only planetary satellite known to have patches of grooved terrain that resemble formations on Earth.

(There are probably also many more planetary satellites that have not yet been discovered.)

The WGSN's first bulletin dated July 2016 [7] included a table of 125 stars comprising the first two batches of names approved by the WGSN (on 30 June and 20 July 2016) together with names of stars (including four traditional star names: Ain, Edasich, Errai and Fomalhaut) reviewed and adopted by the IAU Executive Committee Working Group on Public Naming of Planets and Planetary Satellites during the 2015 NameExoWorlds campaign [8] and recognized by the WGSN.

As a result, Vesta «differentiated» into a relatively dense metallic core (of approximately 136 miles or 220 kilometers across), lighter mantle, and crust, like the rocky inner planets, many large planetary satellite's like the Earth's Moon, and probably most, if not all, of the newly named «dwarf planets» like Ceres.

But astronomers rarely, if ever, experience such divine assistance in naming comets, asteroids, planetary satellites or craters.

He is a leading researcher in planetary cratering and in the physical properties of the smaller bodies of the solar system (asteroids, comets, planetary satellites, the planet Mercury).

A skillful visual observer he was one of the pioneering few during the 80's in applying photoelectric photometry to the study of stars, asteroids and planetary satellites.

The section has introduced a program for systematic observing of the planetary satellites specifically for the mutual events of those of Jupiter and Saturn and observations of some are already on file.

With a few exceptions, the planetary satellites orbit in the same sense as the planets and approximately in the plane of the ecliptic but this is not generally true for comets and asteroids.