HD 167042 is a 6th
magnitude K-type subgiant star
A star is an astronomical object comprising a luminous spheroid of plasma (physics), plasma held together by its gravity. The List of nearest stars and brown dwarfs, nearest star to Earth is the Sun. Many other stars are visible to the naked ...
located approximately 164
light-year
A light-year, alternatively spelled light year, is a large unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (), or 5.88 trillion miles ().One trillion here is taken to be 1012 ...
s away in
Draco constellation
Draco is a constellation in the far northern sky. Its name is Latin for dragon. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations today. The north pole of the e ...
. It has mass of 1.88 times that of the
Sun and the age is only 1.8 billion years old. When this star was a
main sequence
In astronomy, the main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness. These color-magnitude plots are known as Hertzsprung–Russell diagrams after their co-developers, Ejnar Her ...
, it was white mid to late A-type star based on its mass.
Planetary system
On 28 November 2007, a
preprint
In academic publishing, a preprint is a version of a scholarly or scientific paper that precedes formal peer review and publication in a peer-reviewed scholarly or scientific journal. The preprint may be available, often as a non-typeset versio ...
of the discovery of the planet
HD 167042 b was posted to the
arXiv server. The
peer review
Peer review is the evaluation of work by one or more people with similar competencies as the producers of the work (peers). It functions as a form of self-regulation by qualified members of a profession within the relevant field. Peer review ...
ed paper was then published in The
Astrophysical Journal
''The Astrophysical Journal'', often abbreviated ''ApJ'' (pronounced "ap jay") in references and speech, is a peer-reviewed scientific journal of astrophysics and astronomy, established in 1895 by American astronomers George Ellery Hale and Jame ...
on 1 March 2008.
The discovery was later independently confirmed.
See also
*
HD 16175
HD 16175 is a 7th magnitude G-type star with temperature about 6000 K located approximately 196 light-years away in the Andromeda constellation. This star is only visible through binoculars or better equipment; it is also 3.3 times mor ...
*
Kappa Coronae Borealis
Kappa Coronae Borealis, Latinized from κ Coronae Borealis, is a star approximately 98 light years away in the constellation of Corona Borealis. The apparent magnitude is +4.82 (4.17 trillion times fainter than the Sun) and the absolu ...
*
List of extrasolar planets
These are lists of exoplanets. Most of these were discovered by the Kepler space telescope. There are an additional 2,054 potential exoplanets from Kepler's first mission yet to be confirmed, as well as 978 from its " Second Light" mission and ...
References
External links
*
{{Stars of Draco
Draco (constellation)
167042
089017
K-type subgiants
Planetary systems with one confirmed planet
Durchmusterung objects
6817