HD 187123 - Planetary System

Planetary System

In 1998 the California and Carnegie Planet Search team, after following a suggestion by Kevin Apps, a Briton who at the time was an undergraduate student found a possible planet orbiting the star. There were also indications of another, more distant body orbiting the star and this claim was published in 2006. This planet was confirmed in 2009.

The HD 187123 system
Companion
Mass Semimajor axis
Orbital period
Eccentricity Radius
b ≥ 0.523 ± 0.043 MJ 0.0426 ± 0.0025 3.0965828 ± 0.0000078 0.0103 ± 0.0059 —
c ≥ 1.99 ± 0.25 MJ 4.89 ± 0.53 3810 ± 420 0.252 ± 0.033 —

Read more about this topic:  HD 187123

Famous quotes containing the words planetary and/or system:

    “We cannot cheat on DNA. We cannot get round photosynthesis. We cannot say I am not going to give a damn about phytoplankton. All these tiny mechanisms provide the preconditions of our planetary life. To say we do not care is to say in the most literal sense that “we choose death.””
    —Barbara Ward (1914–1981)

    “Columbus stood in his age as the pioneer of progress and enlightenment. The system of universal education is in our age the most prominent and salutary feature of the spirit of enlightenment, and it is peculiarly appropriate that the schools be made by the people the center of the day’s demonstration. Let the national flag float over every schoolhouse in the country and the exercises be such as shall impress upon our youth the patriotic duties of American citizenship.”
    —Benjamin Harrison (1833–1901)