List of Multiplanetary Systems

List Of Multiplanetary Systems

There are (as of November 27, 2012) 126 known multiplanetary systems (i.e. stars with at least two confirmed planets), beyond our Solar System. The star table below contains information about the coordinates, spectral and physical properties, and number of confirmed planets (as of July 7, 2011). The two most important stellar properties are mass and metallicity because it determines how these planetary systems form. The higher mass and metallicity tend to have more planets and more massive planets.

There are 65 stars with two confirmed planets, 18 with three, 5 with four, 3 with five, 1 with six, 1 with seven, and 1 with eight. The star with the most confirmed planets is our Sun, which contains 8 confirmed planets. The star with the most confirmed exoplanets is HD 10180 with 7 planets.

Read more about List Of Multiplanetary Systems:  Planetary Systems, Planetary System Statistics

Famous quotes containing the words list of, list and/or systems:

    Do your children view themselves as successes or failures? Are they being encouraged to be inquisitive or passive? Are they afraid to challenge authority and to question assumptions? Do they feel comfortable adapting to change? Are they easily discouraged if they cannot arrive at a solution to a problem? The answers to those questions will give you a better appraisal of their education than any list of courses, grades, or test scores.
    Lawrence Kutner (20th century)

    Shea—they call him Scholar Jack—
    Went down the list of the dead.
    Officers, seamen, gunners, marines,
    The crews of the gig and yawl,
    The bearded man and the lad in his teens,
    Carpenters, coal-passers—all.
    Joseph I. C. Clarke (1846–1925)

    No civilization ... would ever have been possible without a framework of stability, to provide the wherein for the flux of change. Foremost among the stabilizing factors, more enduring than customs, manners and traditions, are the legal systems that regulate our life in the world and our daily affairs with each other.
    Hannah Arendt (1906–1975)